Hackers can claim subdomains with the help of external services. This attack is practically non-traceable, and affects service providers and multiple domains are affected.
In past few years, Subdomain takeover has been the one of the most reported bug. This amazing but tricky vulnerability might get you exciting rewards in bug bounty. So lets look it into it and figure out different ways of finding this bug.
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
Different ways of enumerating or discovering subdomains for given domain. As we know, enumeration is the key when it comes to hacking; enumerating subdomains leads to discovering many untouched surfaces having the vulnerabilities.
CNIT 40: 1: The Importance of DNS SecuritySam Bowne
Slides for a college course based on "DNS Security" by Anestis Karasaridis.
Teacher: Sam Bowne
Website: https://samsclass.info/40/40_F16.shtml
Updated 8-21-17
In past few years, Subdomain takeover has been the one of the most reported bug. This amazing but tricky vulnerability might get you exciting rewards in bug bounty. So lets look it into it and figure out different ways of finding this bug.
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
Different ways of enumerating or discovering subdomains for given domain. As we know, enumeration is the key when it comes to hacking; enumerating subdomains leads to discovering many untouched surfaces having the vulnerabilities.
CNIT 40: 1: The Importance of DNS SecuritySam Bowne
Slides for a college course based on "DNS Security" by Anestis Karasaridis.
Teacher: Sam Bowne
Website: https://samsclass.info/40/40_F16.shtml
Updated 8-21-17
For more training on AWS, visit: https://www.qa.com/amazon
AWS Loft | London - Deep Dive: Amazon RDS by Toby Knight, Manager Solutions Architecture, 18 April 2016
At re:Invent 2016, we are launching AWS Shield, a managed DDoS protection service. With AWS Shield, you can help protect Amazon CloudFront, Elastic Load Balancing, and Amazon Route 53 resources from DDoS attacks. In addition to introducing AWS Shield, this session presents some of the things we do behind the scenes to detect and mitigate Layer 3/4 network attacks and highlights ways you can use this new service to protect against Layer 7 application attacks.
Training for AWS Solutions Architect at http://zekelabs.com/courses/amazon-web-services-training-bangalore/.Training for AWS Solutions Architect at http://zekelabs.com/courses/amazon-web-services-training-bangalore/. This slide describes about features of simple storage service, s3 buckets, s3-static web hosting, cross region replication, storage classes and comparison, glacier, transfer acceleration, life cycle management, security and encryption
___________________________________________________
zekeLabs is a Technology training platform. We provide instructor led corporate training and classroom training on Industry relevant Cutting Edge Technologies like Big Data, Machine Learning, Natural Language Processing, Artificial Intelligence, Data Science, Amazon Web Services, DevOps, Cloud Computing and Frameworks like Django,Spring, Ruby on Rails, Angular 2 and many more to Professionals.
Reach out to us at www.zekelabs.com or call us at +91 8095465880 or drop a mail at info@zekelabs.com
Amazon Route 53 is a highly available, scalable, and easy to use cloud Domain Name System (DNS) web service. With an SLA of 100% availability, Route 53 is designed to give developers and businesses an extremely reliable and cost effective way to route end users to Internet applications. By using Route 53 as your DNS provider, you can ensure your application’s up-time, run architecture that delivers better performance, and provide your end users with a better experience through lower latency and faster load times, all at the fraction of the cost of other DNS providers. Learning Objective: In this webinar, you will learn the following: - General overview of DNS, and how Route 53 is built to provide reliable and secure DNS - Using the Route 53 console to manage your DNS, easily and seamlessly - Utilizing health checks and failover to ensure high availability - Configuring advanced routing policies, including running your application in multiple regions with LBR and Geo for better performance for your end users. - Saving costs by using Route 53 - Registering or transferring your domains into Route 53 to manage all of your domain resources from one place - How to start using Route 53, including migrating your DNS without experiencing any downtime.
Overview of the Domain Name System (DNS).
In the early days of the Internet, hosts had a fixed IP address.
Reaching a host required to know its numeric IP address.
With the growing number of hosts this scheme became quickly awkward and difficult to use.
DNS was introduced to give hosts human readable names that would be translated into a numeric IP addresses on the fly when a requesting host tried to reach another host.
To facilitate a distributed administration of the domain names, a hierarchic scheme was introduced where responsibility to manage domain names is delegated to organizations which can further delegate management of sub-domains.
Due to its importance in the operation of the Internet, domain name servers are usually operated redundantly. The databases of both servers are periodically synchronized.
A complete Coverage of DNS and its features. This ppt deals with well balanced practical and theoretical aspects of DNS. The best ppt for a novice learner.
Active Directory Introduction
Active Directory Basics
Components of Active Directory
Active Directory hierarchical structure.
Active Directory Database.
Flexible Single Master Operations (FSMO)Role
Active Directory Services.
Some useful Tool
For more training on AWS, visit: https://www.qa.com/amazon
AWS Loft | London - Deep Dive: Amazon RDS by Toby Knight, Manager Solutions Architecture, 18 April 2016
At re:Invent 2016, we are launching AWS Shield, a managed DDoS protection service. With AWS Shield, you can help protect Amazon CloudFront, Elastic Load Balancing, and Amazon Route 53 resources from DDoS attacks. In addition to introducing AWS Shield, this session presents some of the things we do behind the scenes to detect and mitigate Layer 3/4 network attacks and highlights ways you can use this new service to protect against Layer 7 application attacks.
Training for AWS Solutions Architect at http://zekelabs.com/courses/amazon-web-services-training-bangalore/.Training for AWS Solutions Architect at http://zekelabs.com/courses/amazon-web-services-training-bangalore/. This slide describes about features of simple storage service, s3 buckets, s3-static web hosting, cross region replication, storage classes and comparison, glacier, transfer acceleration, life cycle management, security and encryption
___________________________________________________
zekeLabs is a Technology training platform. We provide instructor led corporate training and classroom training on Industry relevant Cutting Edge Technologies like Big Data, Machine Learning, Natural Language Processing, Artificial Intelligence, Data Science, Amazon Web Services, DevOps, Cloud Computing and Frameworks like Django,Spring, Ruby on Rails, Angular 2 and many more to Professionals.
Reach out to us at www.zekelabs.com or call us at +91 8095465880 or drop a mail at info@zekelabs.com
Amazon Route 53 is a highly available, scalable, and easy to use cloud Domain Name System (DNS) web service. With an SLA of 100% availability, Route 53 is designed to give developers and businesses an extremely reliable and cost effective way to route end users to Internet applications. By using Route 53 as your DNS provider, you can ensure your application’s up-time, run architecture that delivers better performance, and provide your end users with a better experience through lower latency and faster load times, all at the fraction of the cost of other DNS providers. Learning Objective: In this webinar, you will learn the following: - General overview of DNS, and how Route 53 is built to provide reliable and secure DNS - Using the Route 53 console to manage your DNS, easily and seamlessly - Utilizing health checks and failover to ensure high availability - Configuring advanced routing policies, including running your application in multiple regions with LBR and Geo for better performance for your end users. - Saving costs by using Route 53 - Registering or transferring your domains into Route 53 to manage all of your domain resources from one place - How to start using Route 53, including migrating your DNS without experiencing any downtime.
Overview of the Domain Name System (DNS).
In the early days of the Internet, hosts had a fixed IP address.
Reaching a host required to know its numeric IP address.
With the growing number of hosts this scheme became quickly awkward and difficult to use.
DNS was introduced to give hosts human readable names that would be translated into a numeric IP addresses on the fly when a requesting host tried to reach another host.
To facilitate a distributed administration of the domain names, a hierarchic scheme was introduced where responsibility to manage domain names is delegated to organizations which can further delegate management of sub-domains.
Due to its importance in the operation of the Internet, domain name servers are usually operated redundantly. The databases of both servers are periodically synchronized.
A complete Coverage of DNS and its features. This ppt deals with well balanced practical and theoretical aspects of DNS. The best ppt for a novice learner.
Active Directory Introduction
Active Directory Basics
Components of Active Directory
Active Directory hierarchical structure.
Active Directory Database.
Flexible Single Master Operations (FSMO)Role
Active Directory Services.
Some useful Tool
Nameserver: What Is It And What Does It Do?Host It Smart
You must have come across the word “Nameserver” if you own or manage a website. But what exactly is a ‘Nameserver’? And how is it helpful in the internet world?
In today's fast-paced digital world, mobile app performance is paramount. DNS plays a crucial role in achieving this performance. This guide will offer tips on making DNS checks in Flutter apps as efficient as possible.
Centralizing DNS Management in a Multi-Account Environment (NET322-R2) - AWS ...Amazon Web Services
DNS management and consistent naming across multiple VPCs and multiple accounts can often be a challenge. In this session, we implement a solution that provides a unified namespace across on-premises and AWS environments. Bring your laptop.
While using the internet is like second nature to many of us, how the web actually works is an infinite subject. Educating yourself on this ever-changing technology can help you understand the basic anatomy of a website and how it functions, further empowering you as a website owner, a site user, or even an internet marketer.
DNSSEC: The Antidote to DNS Cache Poisoning and Other DNS AttacksFindWhitePapers
Domain Name System (DNS) provides one of the most basic but critical functions on the Internet. If DNS isn't working, then your business likely isn't either. Secure your business and web presence with Domain Name System Security Extensions (DNSSEC).
AWS re:Invent 2016: DNS Demystified: Getting Started with Amazon Route 53, fe...Amazon Web Services
Whether you’re running a simple website, a mobile app, or a suite of business applications, DNS is a fundamental part of any architecture in the cloud. In this mid-level architecture session, we’ll cover everything you need to get started with Amazon Route 53, AWS’s highly-available DNS service. You’ll learn how to use public DNS, including routing techniques such as weighted round-robin, latency-based routing, and geo DNS; how to configure DNS failover using health checks; how and when to use private DNS within your Virtual Private Cloud (VPC); and how Amazon Route 53 interacts with Amazon EC2’s DNS for instance naming and DNS resolution across your network.
We will conclude the session with a real-world migration example. Warner Bros. Entertainment recently completed a full DNS migration to Route 53. Vahram Sukyas, Vice President, Application Infrastructure & Operations at Warner Bros. Entertainment, will share details on his team's architecture, migration strategy, and lessons learned which are useful for enterprises and startups alike.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
2. Index
What is Domain Name Service?
How it works?
What is Subdomain?
What is Subdomain Takeover?
All About CNAME
How to find CNAME records?
Impact of the issue
Let’s Takeover Subdomain (Practical_approach)
Mitigation
Reference
6. What is subdomain?
support.facebook.com
Main Domain
Subdomain Domain
Extension
Subdomain is a part of main domain. In above URL, main domain name
is facebook with extension .com and part of this main domain is support which
is called subdomain of this main domain.
8. What is subdomain takeover?
Subdomain Takeover is a type of vulnerability which occurs due to
Misconfiguration of DNS CNAME records or forget to delete DNS entry.
Scenario Example: when a company has configured a DNS CNAME entry for
one of its subdomains pointing to an external service (ex: Heroku, Github
Pages, Bitbucket, Tilda, AWS S3 Bucket, Shopify etc.) but the service is no
longer utilized by that company. In that condition, an attacker could register
to the external service and claim the affected subdomain to configure
his/her services to point affected subdomain.
9. All about CNAME
A (CNAME) Canonical Name record is a type of resource record in the
Domain Name System which maps one domain name to another This can
prove convenient when running multiple services from a single IP address
such as www, mail, blog etc are used while using domain hosting.
10. How to find CNAME records?
There is n-number of ways to find the CNAME record to
associate subdomain. In this section, I'll show you a few
of techniques to find the CNAME record of the specific
subdomain.
DIG COMMAND
Command
DNS Server
Subdomain Name
Type
12. Impact of the issue
Easy to sign up for a new account
An attacker can build a complete clone of the site
It is a covert operation that even the domain owner won’t notice
Authentication bypass, CORS bypass & Many other high risk vulnerabilities.
13.
14. Mitigation
Remove the DNS-configuration of the external service on your subdomain.
SOC Analyst Part
Domain monitoring is a service for monitoring your subdomains for potential
subdomain takeovers. It monitors changes within public DNS resolvers and
warns you as soon as we detect any anomalies.