The document discusses data validation strategies for web applications. It covers validating user input to prevent SQL injection attacks. Various approaches to input validation are described, including rejecting known bad inputs, accepting known good inputs, sanitization, semantic checks and safe data handling. SQL injection is introduced and countermeasures like prepared statements and input escaping are recommended. The importance of the principle of least privilege is also emphasized.
Table of Content
Web Application Firewall
possible security measures of WAF
Data Validation Strategies
Varieties Of Input
Reject Known Bad
Accept Known Good
Sanitization Safe Data Handling
Semantic Checks
Introduction SQL Injection
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
SQL Injection
Blind SQL Injection
Authorization is the process of giving someone permission to do or have something.
Table of Content
Introduction Authorization
Common Attacker Testing Authentication
Strategies For Strong Authentication
Access Control
The document discusses application threat modeling for a college library website. It describes decomposing the application into external dependencies, entry points, assets, and trust levels. It then covers determining and ranking threats using STRIDE and ASF categorizations. The document outlines identifying security controls and countermeasures to address vulnerabilities. It provides steps for threat analysis and defining mitigation strategies.
The Complete Web Application Security Testing ChecklistCigital
Did you know that the web is the most common target for application-level attacks? That being said, if you have ever been tasked with securing a web application for one reason or another, then you know it’s not a simple feat to accomplish. When securing your applications, it’s critical to take a strategic approach. This web application security testing checklist guides you through the testing process, captures key testing elements, and prevents testing oversights.
Tailor your approach and ensure that your testing strategy is as effective, efficient, and timely as possible with these six steps:
This document discusses software development center web application security testing tools. It provides an overview of the top 10 most critical web application security risks according to OWASP and describes several individual tools that can test for each risk, including W3AF for injection, ZAP for cross-site scripting, and Burp Suite for insecure direct object references. It also outlines steps for using the security tools to test a web application, generating a security report, and planning to address prioritized issues found.
Get Ready for Web Application Security TestingAlan Kan
The document discusses web application security testing and provides guidance for testing professionals. It outlines some of the top attacks like SQL injection and cross-site scripting. It recommends getting educated on security topics, using tools like WebScarab and IBM Rational AppScan to test for vulnerabilities, and incorporating security testing into the development process.
Application Security Part 1 Threat Defense In Client Server Applications ...Greg Sohl
This presentation grew out of my experience with testing client-server applications (web, disconnected thin client, etc.) for security issues. The knowledge was gained through research and experience. I gave the presentation to the Cedar Rapids .NET User Group (CRineta.org) in 2006.
Table of Content
Web Application Firewall
possible security measures of WAF
Data Validation Strategies
Varieties Of Input
Reject Known Bad
Accept Known Good
Sanitization Safe Data Handling
Semantic Checks
Introduction SQL Injection
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
SQL Injection
Blind SQL Injection
Authorization is the process of giving someone permission to do or have something.
Table of Content
Introduction Authorization
Common Attacker Testing Authentication
Strategies For Strong Authentication
Access Control
The document discusses application threat modeling for a college library website. It describes decomposing the application into external dependencies, entry points, assets, and trust levels. It then covers determining and ranking threats using STRIDE and ASF categorizations. The document outlines identifying security controls and countermeasures to address vulnerabilities. It provides steps for threat analysis and defining mitigation strategies.
The Complete Web Application Security Testing ChecklistCigital
Did you know that the web is the most common target for application-level attacks? That being said, if you have ever been tasked with securing a web application for one reason or another, then you know it’s not a simple feat to accomplish. When securing your applications, it’s critical to take a strategic approach. This web application security testing checklist guides you through the testing process, captures key testing elements, and prevents testing oversights.
Tailor your approach and ensure that your testing strategy is as effective, efficient, and timely as possible with these six steps:
This document discusses software development center web application security testing tools. It provides an overview of the top 10 most critical web application security risks according to OWASP and describes several individual tools that can test for each risk, including W3AF for injection, ZAP for cross-site scripting, and Burp Suite for insecure direct object references. It also outlines steps for using the security tools to test a web application, generating a security report, and planning to address prioritized issues found.
Get Ready for Web Application Security TestingAlan Kan
The document discusses web application security testing and provides guidance for testing professionals. It outlines some of the top attacks like SQL injection and cross-site scripting. It recommends getting educated on security topics, using tools like WebScarab and IBM Rational AppScan to test for vulnerabilities, and incorporating security testing into the development process.
Application Security Part 1 Threat Defense In Client Server Applications ...Greg Sohl
This presentation grew out of my experience with testing client-server applications (web, disconnected thin client, etc.) for security issues. The knowledge was gained through research and experience. I gave the presentation to the Cedar Rapids .NET User Group (CRineta.org) in 2006.
Web applications are commonly used to transmit, accept and store data that is personal, company confidential and sensitive.
More enterprises are spending more time testing web applications, but many still do not integrate security testing into an application's overall test plan.
In this presentation, we explore ways to integrate security testing into an end-to-end test plan, exercise security features in unit tests, integration tests, acceptance tests.
The document is a report summarizing the findings from a web application penetration test conducted on ABC E-Commerce Platform. Several critical vulnerabilities were discovered, including local file inclusion, price tampering via request parameter manipulation, SQL injection, and user account hijacking through password reset token reuse. The report provides details on how to reproduce each issue, along with impact and recommendations. Overall 14 vulnerabilities of varying severities were identified within the tested application.
This document is a penetration testing report for a customer. It contains details of the testing conducted between specified dates, including vulnerabilities found organized by risk level and category. High risk vulnerabilities were discovered in web applications that could seriously harm the company's reputation. The report provides statistics on vulnerabilities found, methodology used in testing, details of vulnerabilities by system tested, and recommendations for remediation.
This document provides an overview of authentication and authorization testing for web applications. It discusses key concepts like vulnerabilities, threats, and security testing. The document outlines the OWASP testing framework and approach, including phases like information gathering, authentication testing, and authorization testing. It provides checklists of items to test for authentication, like credentials over unencrypted channels, default credentials, and bypassing authentication. The authorization testing checklist covers testing directory traversal, bypassing authorization, and privilege escalation.
The document discusses web application security vulnerabilities and provides examples of common attacks like hidden field manipulation, backdoors and debug options, cross-site scripting, and parameter tampering. It notes that application security defects are frequent, pervasive, and often go undetected. Later in the lifecycle, vulnerabilities become much more costly to fix. The document advocates for positive security models like application firewalls that can automatically learn and enforce intended application behavior to block both known and unknown attacks.
Table Of Content
The OWASP Top Ten
Invalidated Redirect and Forwards
Security Misconfiguration
Application Fingerprint
Error handling And Logging
Noise
PHP Guidelines
This document discusses lessons learned from application security trends. It recommends a risk-based application security program with two phases: 1) A risk-based enterprise testing program with different levels of testing based on application risk, and a framework to classify applications. 2) Building long-term capability through training, standardized security practices, and measuring effectiveness. Key aspects include threat modeling, code reviews, defining security standards, and integrating security into the SDLC to prevent errors in new code. The goal is to find and fix vulnerabilities while building resilience against the latest attacks.
Web Application Security 101 - 04 Testing MethodologyWebsecurify
In part 4 of Web Application Security 101 we will dive deep into the standard testing methodology used by penetration testers and vulnerability researchers when testing web application for security vulnerabilities.
The document discusses various types of injection attacks, including SQL injection, cross-site scripting (XSS), and OS command injection. It describes the mechanisms of these attacks and how they can be used to steal data, bypass authentication, and compromise systems. The document then provides several countermeasures that can be implemented to help prevent injection attacks, such as input validation, prepared statements, firewalls, access control, and encryption.
Web Application Penetration Tests - Information Gathering StageNetsparker
This document discusses the information gathering phase of a web application penetration test using Netsparker. It describes how Netsparker crawls a target site to map its structure and identify vulnerabilities. Key steps include configuring scan settings such as authentication, URL rewriting rules, and crawling parameters. The results of an initial "crawl and wait" scan are presented, showing how Netsparker reveals technical details, comments, inputs, and existing vulnerabilities to provide visibility into the target application before further testing.
The document provides an overview of the top 5 vulnerabilities according to the OWASP Top 10 list - Injection, Broken Authentication and Session Management, Cross-Site Scripting (XSS), Insecure Direct Object References, and Security Misconfiguration. For each vulnerability, the document defines the vulnerability, provides examples, and lists recommendations for mitigating the risk.
The document discusses web application security and provides an overview of common vulnerabilities like SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). It summarizes the OWASP Top 10 list of most critical web app security risks, including injection flaws, broken authentication, sensitive data exposure, and more. The document also offers best practices for developing more securely, like using prepared statements, validating and sanitizing input, and implementing authentication and session management properly.
The document provides grading criteria for assessing Cyber Intrusion Analyst apprentices at different levels: pass, merit, and distinction. It outlines the minimum requirements needed to pass in areas like technical skills, soft skills, and work quality. For a merit or distinction, apprentices must demonstrate skills, knowledge, and behaviors that are significantly above the expected minimum level in these areas. Dimensions for higher-level assessment include areas like depth and breadth of technical ability, level of responsibility, and reliability in professional interactions.
Cyber 51 Ltd. offers web application penetration testing to identify vulnerabilities in applications. Their methodology involves analyzing the application's configuration, authentication, session management, authorization, data validation, and any web services. They aim to find both inadvertent flaws and potential security risks that could be exploited by hackers. The final report provides mitigation recommendations to help customers address issues.
The document summarizes the OWASP Top 10 security risks for web applications. It provides details on each risk such as the types of SQL injection attacks and how to prevent injection flaws. For each risk, it discusses how to determine if an application is vulnerable and recommendations for prevention, including input validation, authentication, authorization, encryption, and keeping components updated. The top risks are injection, broken authentication, XSS, insecure object references, security misconfiguration, sensitive data exposure, missing access controls, CSRF, use of vulnerable components, and unvalidated redirects.
A penetration test evaluates a system's security by simulating attacks. A web application penetration test focuses on a web application's security. The process involves actively analyzing the application for weaknesses, flaws, or vulnerabilities. Any issues found are reported to the owner along with impact assessments and mitigation proposals.
Core defense mechanisms against security attacks on web applicationsKaran Nagrecha
This presentation includes various attack vectors and how to overcome those. Things to keep in mind during and after the development of an application in order to make it secure against attacks. It also includes basic steps to make application secure, which most of the developers forget or do not implement while developing an application.
Security Testing involves testing applications and systems to ensure security and proper functionality. It includes testing input validation, internal processing, output validation, and more. Common types of security testing are security auditing, vulnerability scanning, risk assessment, ethical hacking, and penetration testing. The OWASP Top 10 includes SQL injection, cross-site scripting, and broken authentication and session management as common vulnerabilities.
Web applications are commonly used to transmit, accept and store data that is personal, company confidential and sensitive.
More enterprises are spending more time testing web applications, but many still do not integrate security testing into an application's overall test plan.
In this presentation, we explore ways to integrate security testing into an end-to-end test plan, exercise security features in unit tests, integration tests, acceptance tests.
The document is a report summarizing the findings from a web application penetration test conducted on ABC E-Commerce Platform. Several critical vulnerabilities were discovered, including local file inclusion, price tampering via request parameter manipulation, SQL injection, and user account hijacking through password reset token reuse. The report provides details on how to reproduce each issue, along with impact and recommendations. Overall 14 vulnerabilities of varying severities were identified within the tested application.
This document is a penetration testing report for a customer. It contains details of the testing conducted between specified dates, including vulnerabilities found organized by risk level and category. High risk vulnerabilities were discovered in web applications that could seriously harm the company's reputation. The report provides statistics on vulnerabilities found, methodology used in testing, details of vulnerabilities by system tested, and recommendations for remediation.
This document provides an overview of authentication and authorization testing for web applications. It discusses key concepts like vulnerabilities, threats, and security testing. The document outlines the OWASP testing framework and approach, including phases like information gathering, authentication testing, and authorization testing. It provides checklists of items to test for authentication, like credentials over unencrypted channels, default credentials, and bypassing authentication. The authorization testing checklist covers testing directory traversal, bypassing authorization, and privilege escalation.
The document discusses web application security vulnerabilities and provides examples of common attacks like hidden field manipulation, backdoors and debug options, cross-site scripting, and parameter tampering. It notes that application security defects are frequent, pervasive, and often go undetected. Later in the lifecycle, vulnerabilities become much more costly to fix. The document advocates for positive security models like application firewalls that can automatically learn and enforce intended application behavior to block both known and unknown attacks.
Table Of Content
The OWASP Top Ten
Invalidated Redirect and Forwards
Security Misconfiguration
Application Fingerprint
Error handling And Logging
Noise
PHP Guidelines
This document discusses lessons learned from application security trends. It recommends a risk-based application security program with two phases: 1) A risk-based enterprise testing program with different levels of testing based on application risk, and a framework to classify applications. 2) Building long-term capability through training, standardized security practices, and measuring effectiveness. Key aspects include threat modeling, code reviews, defining security standards, and integrating security into the SDLC to prevent errors in new code. The goal is to find and fix vulnerabilities while building resilience against the latest attacks.
Web Application Security 101 - 04 Testing MethodologyWebsecurify
In part 4 of Web Application Security 101 we will dive deep into the standard testing methodology used by penetration testers and vulnerability researchers when testing web application for security vulnerabilities.
The document discusses various types of injection attacks, including SQL injection, cross-site scripting (XSS), and OS command injection. It describes the mechanisms of these attacks and how they can be used to steal data, bypass authentication, and compromise systems. The document then provides several countermeasures that can be implemented to help prevent injection attacks, such as input validation, prepared statements, firewalls, access control, and encryption.
Web Application Penetration Tests - Information Gathering StageNetsparker
This document discusses the information gathering phase of a web application penetration test using Netsparker. It describes how Netsparker crawls a target site to map its structure and identify vulnerabilities. Key steps include configuring scan settings such as authentication, URL rewriting rules, and crawling parameters. The results of an initial "crawl and wait" scan are presented, showing how Netsparker reveals technical details, comments, inputs, and existing vulnerabilities to provide visibility into the target application before further testing.
The document provides an overview of the top 5 vulnerabilities according to the OWASP Top 10 list - Injection, Broken Authentication and Session Management, Cross-Site Scripting (XSS), Insecure Direct Object References, and Security Misconfiguration. For each vulnerability, the document defines the vulnerability, provides examples, and lists recommendations for mitigating the risk.
The document discusses web application security and provides an overview of common vulnerabilities like SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). It summarizes the OWASP Top 10 list of most critical web app security risks, including injection flaws, broken authentication, sensitive data exposure, and more. The document also offers best practices for developing more securely, like using prepared statements, validating and sanitizing input, and implementing authentication and session management properly.
The document provides grading criteria for assessing Cyber Intrusion Analyst apprentices at different levels: pass, merit, and distinction. It outlines the minimum requirements needed to pass in areas like technical skills, soft skills, and work quality. For a merit or distinction, apprentices must demonstrate skills, knowledge, and behaviors that are significantly above the expected minimum level in these areas. Dimensions for higher-level assessment include areas like depth and breadth of technical ability, level of responsibility, and reliability in professional interactions.
Cyber 51 Ltd. offers web application penetration testing to identify vulnerabilities in applications. Their methodology involves analyzing the application's configuration, authentication, session management, authorization, data validation, and any web services. They aim to find both inadvertent flaws and potential security risks that could be exploited by hackers. The final report provides mitigation recommendations to help customers address issues.
The document summarizes the OWASP Top 10 security risks for web applications. It provides details on each risk such as the types of SQL injection attacks and how to prevent injection flaws. For each risk, it discusses how to determine if an application is vulnerable and recommendations for prevention, including input validation, authentication, authorization, encryption, and keeping components updated. The top risks are injection, broken authentication, XSS, insecure object references, security misconfiguration, sensitive data exposure, missing access controls, CSRF, use of vulnerable components, and unvalidated redirects.
A penetration test evaluates a system's security by simulating attacks. A web application penetration test focuses on a web application's security. The process involves actively analyzing the application for weaknesses, flaws, or vulnerabilities. Any issues found are reported to the owner along with impact assessments and mitigation proposals.
Core defense mechanisms against security attacks on web applicationsKaran Nagrecha
This presentation includes various attack vectors and how to overcome those. Things to keep in mind during and after the development of an application in order to make it secure against attacks. It also includes basic steps to make application secure, which most of the developers forget or do not implement while developing an application.
Security Testing involves testing applications and systems to ensure security and proper functionality. It includes testing input validation, internal processing, output validation, and more. Common types of security testing are security auditing, vulnerability scanning, risk assessment, ethical hacking, and penetration testing. The OWASP Top 10 includes SQL injection, cross-site scripting, and broken authentication and session management as common vulnerabilities.
This document discusses secure web application development and preventing common vulnerabilities. It begins with an introduction on why web applications are often vulnerable and the importance of secure development. It then provides details on secure development lifecycles and practices, describes top vulnerabilities like injection flaws and cross-site scripting, and provides guidance on how to prevent each vulnerability through practices like input validation, output encoding, and access controls. The goal is to help developers understand security risks and how to build more robust applications through secure coding and threat modeling.
Security testing is the process of identifying vulnerabilities in a system to protect data and ensure intended functionality. It involves testing confidentiality, integrity, authentication, availability, authorization, and non-repudiation. The security testing process includes planning, vulnerability scanning, assessment, penetration testing, and reporting. Types of security testing include static application, dynamic application, and penetration testing. The OWASP Top 10 list identifies the most critical web application security risks.
The document outlines a step-by-step approach for web application security testing. It begins with cracking passwords by guessing usernames and passwords or using password cracking tools. It then discusses manipulating URLs by changing parameters in the query string to test how the server responds. Finally, it describes checking for SQL injection vulnerabilities by entering single quotes or analyzing user inputs given as MySQL queries. The overall approach helps identify security risks so companies can employ reliable website application security services to eliminate vulnerabilities.
The document discusses risk-based security testing methodology for web applications. It involves deriving test cases from threat analysis techniques like attack tree analysis and understanding real-world attack vectors. The goal is to simulate real attacker scenarios and test for vulnerabilities, as well as potential abuse of business logic or flaws in the secure architecture. Security testing is integrated into the software development lifecycle to find and fix issues early.
The document discusses various types of web vulnerabilities including broken access control, sensitive data exposure, injections, security misconfigurations, vulnerable components, and logging/monitoring flaws. It provides examples of real-world incidents for each type of vulnerability and recommends mitigation strategies like multi-factor authentication, encryption, input validation, least privilege access, and regular updates/monitoring.
Bringing the hacker mindset into requirements and testing by Eapen Thomas and...QA or the Highway
This document discusses bringing a hacker mindset to requirements and testing for application security. It begins by highlighting statistics showing the poor state of application security and vulnerabilities. The document then contrasts producer and consumer views of quality, and explains why security requirements are difficult by nature. It provides examples of threat modeling and negative testing techniques that can help requirements analysts and testers think like hackers to identify vulnerabilities. The presentation calls for adopting these adversarial techniques to improve application security.
Make sure you’re defending against the most common web security issues and attacks with this useful overview of software development best-practices. We'll go over the most common attacks against web applications and present real world advice for defending yourself against these types of attacks.
Introduction All research reports begin with an introduction. (.docxvrickens
Introduction
All research reports begin with an introduction. (1 – 2 Pages)
Background
Provide your reader with a broad base of understanding of the research topic. The goal is to give the reader an overview of the topic, and its context within the real world, research literature, and theory. (3 – 5 Pages)
Problem Statement
This section should clearly articulate how the study will relate to the current literature. This is done by describing findings from the research literature that define the gap. Should be very clear what the research problem is and why it should be solved. Provide a general/board problem and a specific problem (150 – 200 Words)
Literature Review
Using your annotated bibliography, construct a literature review. (5-10 pages)
Discussion
Provide a discussion about your specific topic findings. Using the literature, you found, how do you solve your problem? How does it affect your general/board problem? (3-5 pages)
References
1. Web Application Security; by Vincent Liu, Bryan Sullivan; Publisher: McGraw-Hill; Release Date: November 2011
https://www.oreilly.com/library/view/web-application-security/9780071776165/
2. Veracode; Web Application Security Standards; May 09, 2019
https://www.veracode.com/security/web-application-security-standards
3. Gofore; Web Application Security Requirements » Gofore; July 12, 2018
https://gofore.com/en/web-application-security-requirements-2/
4. Information Security; IT Security Standard: Web Applications - Security Vulnerabilities
https://security.calpoly.edu/content/standards/web-app-vulnerabilities
5. GitHub; OWASP/ASVS; May 27, 2019
https://github.com/OWASP/ASVS
6. KeyCDN; 11 Web Application Security Best Practices; June 02, 2019
https://www.keycdn.com/blog/web-application-security-best-practices
7. Software Integrity Blog; 3 Tips to Ramp Up Your Web Application Security | Synopsys; May 29, 2019
https://www.synopsys.com/blogs/software-security/ramp-up-your-web-application-security/
8. CompliancePoint; Web Application Testing;
https://www.compliancepoint.com/web-application-testing
9. Holm Security; Web Application Security (WAS)
https://www.holmsecurity.com/web-application-security-was
10. Information Security Buzz; The State Of Web Application Vulnerabilities In 2018; January 30, 2019
https://www.informationsecuritybuzz.com/articles/the-state-of-web-application-vulnerabilities-in-2018/
Introduction
Application Security management is an important feature of security in IT environment at enterprise level. Application Security is the implementation of join more aspects or functionality to software to block an area of uncommon threats. These are included of sensitive date breaches or Information or Data theft/steal situations, Denial of Service attacks and other Cyber Attacks.
Web applications are vulnerable to charges that may result in presentation or diminishing of sensitive data, or effect on accessibility of an authorized users like administrators, special users, Application tes ...
# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
Security Testing Approach for Web Application Testing.pdfAmeliaJonas2
There are numerous web security testing tools available to aid in the process. One such tool is Astra's Pentest Solution. Astra offers a comprehensive suite of Security Testing Services, including vulnerability scanning, penetration testing, and code reviews. It provides automated scanning and analysis of web applications to identify vulnerabilities and suggest remediation measures.
Have you ever actually gone through the process of hacking a website? Join me on this wonderful ride of application security powered by the OWASP Juice Shop to demonstrate some of the top website vulnerabilities from the OWASP Top 10. In this training, we will review several different techniques used in web application testing, exploit vulnerabilities discovered manually and with tools, and finally take over the whole show just to see how it’s done. A laptop is not necessary as this exercise is meant to be interactive and entertaining. Be sure to bring your thinking cap and your best hacks.
The document provides an overview of web application security. It discusses what web application security entails, which is achieving an acceptable level of security for a web application solution. It explains why web application security is important given increased reliance on web apps and their global accessibility. It outlines some common security risks like browser hijacking, cookie theft, and denial of service attacks. It also discusses how security problems should be addressed earlier in the development lifecycle to reduce costs. The document then delves into specific vulnerabilities like hidden field manipulation, cookie poisoning, buffer overflows, and cross-site scripting attacks. Examples are provided to illustrate how attackers can exploit these vulnerabilities.
The document discusses the OWASP Top 10 Proactive Controls for web application security. It summarizes 10 critical security areas that developers must address: 1) Verify security early and often, 2) Parameterize queries, 3) Encode data, 4) Validate all inputs, 5) Implement identity and authentication controls, 6) Implement access controls, 7) Protect data, 8) Implement logging and intrusion detection, 9) Leverage security frameworks and libraries, and 10) Handle errors and exceptions properly. For each area, it describes common vulnerabilities, example attacks, and recommended controls to implement for protection.
OWASP Top 10 2021 Presentation (Jul 2022)TzahiArabov
The document provides information about the OWASP Top 10 2021 list of web application security risks. It describes the top risk, A01: Broken Access Control, giving its definition, examples of vulnerabilities it can enable, prevention methods, and examples. It also summarizes the second and third top risks, A02: Cryptographic Failures and A03: Injection, in a similar manner.
The document discusses developing secure web applications. It proposes using input validation, encryption of sensitive data, preventing SQL injection attacks, and collecting access logs. Input is validated by only allowing a whitelist of known good characters. Sensitive data like passwords are encrypted using an encryption algorithm. SQL injection is prevented by replacing malicious strings with blank spaces. Access logs record client IP addresses and page requests to trace activity and block malicious IPs. The techniques aim to make web applications and data more secure against common attacks like SQL injection, brute force, and denial of service.
Study of Web Application Attacks & Their Countermeasuresidescitation
Web application security is among the hottest issue
in present web scenario due to increasing use of web
applications for e-business environment. Web application has
become the easiest way to provide wide range of services to
users. Due to transfer of confidential data during these services
web application are more vulnerable to attacks. Web
application attack occurs because of lack of security awareness
and poor programming skills. According to Imperva web
application attack report [1] websites are probe once every
two minutes and this has been increased to ten attacks per
second in year 2012. In this paper we have presented most
common and dangerous web application attacks and their
countermeasures.
Appsec2013 assurance tagging-robert martindrewz lin
The document discusses engineering software systems to be more secure against attacks. It notes that reducing a system's attack surface alone is not enough, as software and networks are too complex and it is impossible to know all vulnerabilities. It then discusses characteristics of advanced persistent threats, including that the initial attack may go unnoticed and adversaries cannot be fully kept out. Finally, it argues that taking a threat-driven perspective beyond just operational defense can help balance mitigation with detection and response.
In this digital era, organizations and industries are moving towards replacing websites with web applications for many obvious reasons. With this transition towards web-based applications, organizations and industries find themselves surrounded by several threats and vulnerabilities. One of the largest concerns is keeping their infrastructure safe from attacks and misuse. Web security entails applying a set of procedures and practices, by applying several security principles at various layers to protect web servers, web users, and their surrounding environment. In this paper, we will discuss several attacks that may affect web-based applications namely: SQL injection attacks, cookie poisoning, cross-site scripting, and buffer overflow. Additionally, we will discuss detection and prevention methods from such attacks.
This document discusses NoSQL injection and strategies for preventing it. It begins with an introduction comparing NoSQL and SQL databases. Next, it defines NoSQL injection and how it can occur. The document then discusses various techniques for preventing NoSQL injection attacks, including reviewing code for vulnerabilities and using input validation. It also provides an example of how NoSQL injection could happen in a PHP/MongoDB application and how to validate input as a string to prevent it.
This document discusses various techniques for protecting sensitive data, including encryption, hashing, encoding, and message authentication codes (MACs). It explains the differences between encoding, encryption, and hashing. Symmetric and asymmetric encryption techniques are covered. The document also discusses common cryptographic algorithms like PBKDF2 and HMAC that are used to securely store passwords and verify message integrity. Specific attacks like replay attacks are explained along with countermeasures like timestamps and nonces.
This document provides details about a training course on the Yii 2 software framework, including the course code, length, dates, target audience, and syllabus. The 26-hour course consists of 13 sessions covering topics like the Yii framework features and structure, building applications with Gii, models, views, authentication, authorization, and modules. It aims to teach programmers and web developers how to develop web applications using the Yii PHP framework. Registration can be done online, and the course will be held at the University of Mashhad's Virtual Training Laboratory.
This document describes a 24-hour specialized training course on web application security in PHP. The course syllabus covers topics such as web application architecture, HTTP protocol, common vulnerabilities, SQL injection, authentication strategies, authorization, XSS and CSRF prevention, session management, file uploads, threat modeling and more. The target audience are web application developers and the course will help participants learn how to develop secure PHP applications. It provides examples of vulnerable code and practices for securing code against common attacks.
This document discusses validating, sanitizing, and escaping user data when building web applications. It explains that validating ensures user input matches the requested format, sanitizing cleans input by removing unsafe characters, and escaping secures output before rendering. Specific validation and sanitization techniques are described, such as checking data types, filtering HTML tags and attributes, and removing special characters. The key differences between validation and sanitization are also summarized - validation checks against rules while sanitization only removes unsafe code. Finally, PHP's filter_var function is introduced as a way to both sanitize and validate data in one step.
Yii is a high-performance PHP framework that uses an MVC design pattern. It enables maximum code reuse and accelerates development. Yii features include an ORM, form handling, caching, internationalization, and security measures. The framework follows conventions for file structure, naming, and configuration to promote best practices.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
3. Data Validation
Scenarios :
Preventing SQL Injection Attacks
Table of Content
Web Application Firewall
o possible security measures of WAF
Data Validation Strategies
o Varieties Of Input
o Reject Known Bad
o Accept Known Good
o Sanitization Safe Data Handling
o Semantic Checks
4. Data Validation
Scenarios :
Preventing SQL Injection Attacks
Table of Content
Introducing SQL Injection
Countermeasures Of SQL Injection
o PHP Functions
o Using Principle Of Least Privilege
o Prepared Statement
o Review of ORM Injection
5. Data Validation
Web Application Firewall
Data Validation Strategies
Introducing SQL Injection
Countermeasures Of SQL Injection
7. Data Validation
Web Application Firewall
a WAF is defined as a security solution on the web application level which
- from a technical point of view - does not depend on the application
itself. Good WAF
Main Goal
This applies to vulnerabilities in particular which have been revealed via a
penetration test or even via analysis of the source code, , and - especially
in the short term - cannot be fixed within the application
8. Data Validation
Why You Need A Web Application Firewall
Threats are evolving
Web applications are the low-hanging fruitHandlig user input
Web applications are growing
Good WAF
block access to certain ports or filter by IP address
look at every request and response within web service layers such as
HTTP, HTTPS, SOAP, and XML-RPC.
The meticulous inspection of web traffic
10. Data Validation
possible security measures of WAF
The table below gives possible security measures in the WAF :
o + very well covered by a WAF
o - cannot be covered (or only to a small degree) by a WAF
o ! dependent on the WAF/application/requirements
o = can partially be covered by a WAF
11. Data Validation
possible security measures of WAF
The table below gives possible security measures in the WAF :
o + very well covered by a WAF
o - cannot be covered (or only to a small degree) by a WAF
o ! dependent on the WAF/application/requirements
o = can partially be covered by a WAF
14. Data Validation
Web Application Firewall
Data Validation Strategies
Introducing SQL Injection
Countermeasures Of SQL Injection
15. Data Validation
Applications Defense Mechanisms
The defense mechanisms employed by web applications comprise the
following core elements:
Handling user access
Handlig user input
Handling attackers
Managing the application itself
16. Data Validation
Applications Defense Mechanisms
The defense mechanisms employed by web applications comprise the following
core elements:
Handling user access to the application’s data and functionality, to prevent users from
gaining unauthorized access.
Handlig user input to the application’s functions, to prevent malformed
input from causing undesirable behavior.
Handling attackers, to ensure that the application behaves appropriately
when being directly targeted, taking suitable defensive and offensive measures to
frustrate the attacker.
Managing the application itself, by enabling administrators to monitor its activities
and configure its functionality.
17. Handling User Input
Input validation
A huge variety of different attacks against web applications involve
submitting unexpected input, crafted to cause behavior that was not
intended by the application’s designers. Correspondingly:
a key requirement for an application’s security defenses
is that it must handle user input in a safe manner.
18. Handling User Input
Varieties of Input
A typical web application processes user-supplied data in a range of
different Forms.
19. Handling User Input
Varieties of Input
A typical web application processes user-supplied data in a range of different Forms.
very stringent validation checks
o username field
• 3<length<8
• charactersand contain only alphabetical letters
the application must tolerate a wider range of possible input.
o Address field
• Charactersand contain letters, numbers, spaces, hyphens, apostrophes, ...
• Restrict : should not contain any HTML mark-up
a blogging application may create a blog whose subject is web application hacking.
o Comment field
21. Handling User Input
Varieties of Input
In addition to the various kinds of input that is entered by users via the
browser interface, a typical application also receives numerous items of data
that began their life on the server and that are sent to the client so that the
client an transmit them back to the server on subsequent requests. This
includes
o Cookies
• Cookies are packages of data your servers hand out that are stored by a
browser so that they can be remembered next time they return.
o hidden form fields
o Some Http Header (refer)
o Some input that again retrive from db
22. Handling User Input
Approaches to Input Handling
Different approaches are often preferable for different situations and
different types of input, and a ombination of approaches may sometimes
be desirable.
o Reject Known Bad
o Accept Known Good
o Sanitization
o Safe Data Handling
o Semantic Checks
23. Approaches to Input Handling
Reject Known Bad
This approach typically employs a blacklist containing a set of literal
strings or patterns that are known to be used in attacks. The validation
mechanism blocks any data that matches the blacklist and allows
everything else.
o exploite using a wide variety of different input
o techniques for exploitation are constantly evolving
24. Approaches to Input Handling
Accept Known Good
This This approach employs a white list containing a set of literal strings
or patterns,or a set of criteria, that is known to match only benign input.
The validation mechanism allows data that matches the white list, and
blockseverything else.
while it is often extremely effective, the white-list-based approach does
not represent an all-purpose solution to the problem of handling user
input.
25. Approaches to Input Handling
Sanitization
Sometimes accept data that cannot be guaranteed as safe. Instead of
rejecting this input, the application sanitizes it in various ways to prevent
it from having any adverse effects.
Potentially malicious characters may be:
o removed from the data altogether
o leaving only what is known to be safe
o suitably encoded or “escaped” before further processing is performed
26. Approaches to Input Handling
Sanitization
Example
o For example, the usual defense against cross-site scripting attacks is
to HTML-encode dangerous characters before these are embedded
into pages of the application
code char
&apos ; “
& ; ‘
< ; <
& gt ; >
27. Approaches to Input Handling
Safe Data Handling
It is often the case that vulnerabilities can be avoided, not by validating
the input itself but by ensuring that the processing that is performed on it
is inherently safe. In some situations, there are safe programming
methods available that avoid common problems.
For example, SQL injection attacks can be prevented through the correct
use of parameterized queries for database access, as described later.
28. Approaches to Input Handling
Semantic Checks
Some vulnerabilities the input supplied by the attacker is identical to the
input that an ordinary, non-malicious user may submit. What makes it
malicious is the different circumstances in which it is submitted. For
example, an attacker might seek to gain access to another user’s bank
account by changing an account number transmitted in a hidden form
field.
29. Approaches to Input Handling
Boundary Validation
The core security problem with web applications arises because data received
from users is untrusted.
The point at which user data is first received by the server-side application
represents a huge trust boundary, at which the application needs to take
measures to defend itself against malicious input.
30. Approaches to Input Handling
Boundary Validation
disadvntages
o It would be very difficult to devise a single mechanism at the external boundary to defend
against all attacks.
o A single piece of user-supplied input might result in a number of operations in different App
components, with the output of each being used as the input for the next.
o Defending against different categories of input-based attack may entail performing different
validation checks
31. Approaches to Input Handling
Boundary Validation
solution
o An application function using boundary validation at multiple stages of
processing
32. Data Validation
Web Application Firewall
Data Validation Strategies
Introducing SQL Injection
Countermeasures Of SQL Injection
33. SQL Injection
Introduction SQL Injection
A SQL injection attack consists of insertion or "injection" of a SQL query via
the input data from the client to the application
o SQL Injection
o Blind SQL Injection
34. SQL Injection
Introduction SQL Injection
SQL query:
SELECT * FROM Users WHERE Username='$username' AND Password='$password'
values:
$username = 1' or '1' = '1
$password = 1' or '1' = '1
The query will be :
SELECT * FROM Users WHERE Username='1' OR '1' = '1' AND Password='1' OR '1' = '1'
SELECT * FROM Users WHERE username = '' OR 1=1 -- -' AND password = '';
SELECT * FROM Users WHERE id = '' UNION SELECT 1, 2, 3`';
35. SQL Injection
Some SQL Injection query
1' ORDER BY 1--+ True
1' ORDER BY 2--+ True
1' ORDER BY 3--+ False
- Query is only using 2 columns -1' UNION SELECT 1,2--+ True
Get version :
SELECT * FROM Users WHERE Username=‘admin' union select 1,@@version – AND
Password='$password'
Get table name:
SELECT * FROM Users WHERE Username=‘admin' union select table_name,2 from
INFORMATION_SCHEMA .tables – AND Password='$password'
Get tables of current db:
SELECT * FROM Users WHERE Username=‘admin' union select table_name,2 from
INFORMATION_SCHEMA.tables where table_schema = database() – AND Password='$password'
37. SQL Injection
How to Avoid SQL Injection Vulnerabilities
Using register_globals(depricated)
Using PHP function
Use of Prepared Statements (Parameterized Queries)
Use of Stored Procedures
Escaping all User Supplied Input
Also Enforce: Least Privilege
Also Perform: White List Input Validation
38. SQL Injection
How to Avoid SQL Injection Vulnerabilities
Using register_globals
• When you have register_globals=on, anything passed via GET or POST or
COOKIE automatically appears to be global variable in code, this might
have security consequences.
• I.e. you click on url test.php?access_level=100 and you'll have
$access_level = 100 in PHP.
• This feature has been DEPRECATED as of PHP 5.3.0 and REMOVED as
of PHP 5.4.0.
39. SQL Injection
How to Avoid SQL Injection Vulnerabilities
Using PHP function
• is_int()
• gettype()
• intval()
• settype()
• stripslashes(); ( /n -> n)
• mysql_real_escape_string();
40. SQL Injection
How to Avoid SQL Injection Vulnerabilities
Use of Prepared Statements gettype()
• use PDO with strongly typed parameterized queries (using bindParam())
Use of Stored Procedures
• Stored procedures have the same effect as the use of prepared
statements when implemented safely*. They require the developer to
define the SQL code first, and then pass in the parameters after.
$a=new PDO("mysql:host=localhost;dbname=library;",“leastprivilageduser","");
$b=$a->prepare("SELECT first_name, last_name FROM users WHERE user ==:user");
$b->bindParam(":user",$id , PDO::PARAM_INT);
$b->execute();
41. SQL Injection
How to Avoid SQL Injection Vulnerabilities
Use of Prepared Statements gettype()
43. SQL Injection
Information schema
In relational databases, the information schema is an ANSI standard set of read-only views
which provide information about all of the tables, views, columns, and procedures in a
database.
QUICK SQL COMMANDS OVERVIEW:
UNION ALL – Combine multiple columns
ORDER BY – Orders columns by alphabetical or numerical order
LIMIT – The number of the selected field to be displayed
CONCAT – Short for concatenate which means to combine two strings into a one.
GROUP_CONCAT – Grouping all values from a concatenated string
INTO_DUMPFILE() to dump the contents of a column into a text file
LOAD_FILE() to read the contents of any file contained within the webserver
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