Linux Security and Hardening
Version 2019
System Security
Kernel Security and Hardening
Physical Security
Password Policies and Security
Auto Logout
Disks and Partitions Security
Disk Encryption Guide
Disk Quota and Space Management
Anti-virus
Rootkit Detection Tools
Security Audit Tools
Host-based Intrusion Detection System
Log and Log Management
Network Security
NTP Service
Firewall
SSH Security
Bootloader Security
Serão demonstradas diversas técnicas de ataque, tais como: Injeções de codigos,brute force, backdoors, root kits, exploits e várias outras maneiras para acessar e se manter indevidamente a servidores,em contra-partida são discutidas melhores praticas para se
evitar os tipos de ataques citados. (Palestra realizada no 3º Festival de Software livre em belo horizonte - FSLBH)
Palestra realizada por Toronto Garcez aka torontux durante a 3a. edição da Nullbyte Security Conference em 26 de novembro de 2016.
Resumo:
O objetivo da apresentação é demonstrar de forma prática, o passo-a-passo para criar uma botnet com roteadores wi-fi e/ou embarcados em geral. Será demonstrado o desenvolvimento de um comando e controle e a utilização de firmwares "backdorados" para tornar dispositivos em bots.
OSMC 2014: Server Hardware Monitoring done right | Werner FischerNETWAYS
Server Hardware ist vielfältig - und damit können auch mögliche Probleme auftreten. Für das Monitoring der Serverkomponenten gibt es unterschiedliche Schnittstellen. Die Palette reicht hier von Netzwerkprotokollen wie IPMI und SNMP bis hin zu Checks, die lokal am jeweiligen Server ausgeführt werden müssen (z.B. für RAID-Controller, SMART-Attribute oder GPU-Karten).
Im Vortrag erfahren Sie welche Checks Sie am besten für bestimmte Hardware Komponenten einsetzen und damit zuverlässig zeitnah informiert werden, sobald sich Probleme abzeichnen.
Serão demonstradas diversas técnicas de ataque, tais como: Injeções de codigos,brute force, backdoors, root kits, exploits e várias outras maneiras para acessar e se manter indevidamente a servidores,em contra-partida são discutidas melhores praticas para se
evitar os tipos de ataques citados. (Palestra realizada no 3º Festival de Software livre em belo horizonte - FSLBH)
Palestra realizada por Toronto Garcez aka torontux durante a 3a. edição da Nullbyte Security Conference em 26 de novembro de 2016.
Resumo:
O objetivo da apresentação é demonstrar de forma prática, o passo-a-passo para criar uma botnet com roteadores wi-fi e/ou embarcados em geral. Será demonstrado o desenvolvimento de um comando e controle e a utilização de firmwares "backdorados" para tornar dispositivos em bots.
OSMC 2014: Server Hardware Monitoring done right | Werner FischerNETWAYS
Server Hardware ist vielfältig - und damit können auch mögliche Probleme auftreten. Für das Monitoring der Serverkomponenten gibt es unterschiedliche Schnittstellen. Die Palette reicht hier von Netzwerkprotokollen wie IPMI und SNMP bis hin zu Checks, die lokal am jeweiligen Server ausgeführt werden müssen (z.B. für RAID-Controller, SMART-Attribute oder GPU-Karten).
Im Vortrag erfahren Sie welche Checks Sie am besten für bestimmte Hardware Komponenten einsetzen und damit zuverlässig zeitnah informiert werden, sobald sich Probleme abzeichnen.
D1 t1 t. yunusov k. nesterov - bootkit via smsqqlan
Having developed a test set, we started to research how safe it is for clients to use 4G networks of the telecommunication companies. During the research we have tested SIM-cards, 4G USB modems, radio components, IP access network. First of all we looked for the vulnerabilities that could be exploited remotely, via IP or radio network.
And the result was not late in arriving. In some cases we managed to attack SIM-cards and install a malicious Java applet there, we were able to update remotely USB modem firmware, to change password on a selfcare portal via SMS and even to get access to the internal technological network of a carrier.
Further attack evolution helped to understand how it is possible to use a simple SMS as an exploit that is able not only to compromise a USB modem and all the communications that go through it, but also to install bootkit on a box, that this modem is connected to.
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)Naoto MATSUMOTO
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
20-Feb-2015
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
Spenser Reinhardt's presentation on Securing Your Nagios Server.
The presentation was given during the Nagios World Conference North America held Sept 20-Oct 2nd, 2013 in Saint Paul, MN. For more information on the conference (including photos and videos), visit: http://go.nagios.com/nwcna
Ведущие: Денис Макрушин и Юрий Наместников
Среди прочих мер, направленных на защиту корпоративной инфраструктуры от злоумышленников, специалисты по безопасности полагаются на строгую политику ограничения доступа приложений к интернету. Защита информационных систем предприятия основана главным образом на принципе «запретить все, что не разрешено». Тем временем угрозы безопасности притаились в недрах корпоративных сетей и ждут, когда у сотрудников закончится рабочий день. Мы расскажем вам, как с наступлением темноты киберпреступники используют Notepad, AutoCAD, Tomcat и SQL Server в своих целях.
Praktické postupy ochrany před DDoS útoky - Přednáška se bude zabývat postupy jak se chránit před DoS/DDoS útoky a to od nejnižší po nejvyšší vrstvu, od malých webů po korporátní sítě.
www.security-session.cz
In this PowerPoint, learn how a security policy can be your first line of defense. Servers running AIX and other operating systems are frequent targets of cyberattacks, according to the Data Breach Investigations Report. From DoS attacks to malware, attackers have a variety of strategies at their disposal. Having a security policy in place makes it easier to ensure you have appropriate controls in place to protect mission-critical data.
D1 t1 t. yunusov k. nesterov - bootkit via smsqqlan
Having developed a test set, we started to research how safe it is for clients to use 4G networks of the telecommunication companies. During the research we have tested SIM-cards, 4G USB modems, radio components, IP access network. First of all we looked for the vulnerabilities that could be exploited remotely, via IP or radio network.
And the result was not late in arriving. In some cases we managed to attack SIM-cards and install a malicious Java applet there, we were able to update remotely USB modem firmware, to change password on a selfcare portal via SMS and even to get access to the internal technological network of a carrier.
Further attack evolution helped to understand how it is possible to use a simple SMS as an exploit that is able not only to compromise a USB modem and all the communications that go through it, but also to install bootkit on a box, that this modem is connected to.
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)Naoto MATSUMOTO
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
20-Feb-2015
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
Spenser Reinhardt's presentation on Securing Your Nagios Server.
The presentation was given during the Nagios World Conference North America held Sept 20-Oct 2nd, 2013 in Saint Paul, MN. For more information on the conference (including photos and videos), visit: http://go.nagios.com/nwcna
Ведущие: Денис Макрушин и Юрий Наместников
Среди прочих мер, направленных на защиту корпоративной инфраструктуры от злоумышленников, специалисты по безопасности полагаются на строгую политику ограничения доступа приложений к интернету. Защита информационных систем предприятия основана главным образом на принципе «запретить все, что не разрешено». Тем временем угрозы безопасности притаились в недрах корпоративных сетей и ждут, когда у сотрудников закончится рабочий день. Мы расскажем вам, как с наступлением темноты киберпреступники используют Notepad, AutoCAD, Tomcat и SQL Server в своих целях.
Praktické postupy ochrany před DDoS útoky - Přednáška se bude zabývat postupy jak se chránit před DoS/DDoS útoky a to od nejnižší po nejvyšší vrstvu, od malých webů po korporátní sítě.
www.security-session.cz
In this PowerPoint, learn how a security policy can be your first line of defense. Servers running AIX and other operating systems are frequent targets of cyberattacks, according to the Data Breach Investigations Report. From DoS attacks to malware, attackers have a variety of strategies at their disposal. Having a security policy in place makes it easier to ensure you have appropriate controls in place to protect mission-critical data.
(SEC404) Incident Response in the Cloud | AWS re:Invent 2014Amazon Web Services
You've employed the practices outlined for incident detection, but what do you do when you detect an incident in the cloud? This session walks you through a hypothetical incident response on AWS. Learn to leverage the unique capabilities of the AWS environment when you respond to an incident, which in many ways is similar to how you respond to incidents in your own infrastructure. This session also covers specific environment recovery steps available on AWS.
RIoT (Raiding Internet of Things) by Jacob HolcombPriyanka Aash
The recorded version of 'Best Of The World Webcast Series' [Webinar] where Jacob Holcomb speaks on 'RIoT (Raiding Internet of Things)' is available on CISOPlatform.
Best Of The World Webcast Series are webinars where breakthrough/original security researchers showcase their study, to offer the CISO/security experts the best insights in information security.
For more signup(it's free): www.cisoplatform.com
Unmasking Careto through Memory Forensics (video in description)Andrew Case
My presentation from SecTor 2014 on analyzing the sophisticated Careto malware with memory forensics & Volatility
Video here: http://2014.video.sector.ca/video/110388398
BSides London 2015 - Proprietary network protocols - risky business on the wire.Jakub Kałużny
When speed and latency counts, there is no place for standard HTTP/SSL stack and a wise head comes up with a proprietary network protocol. How to deal with embedded software or thick clients using protocols with no documentation at all? Binary TCP connections, unlike anything, impossible to be adapted by a well-known local proxy. Without disassembling the protocol, pentesting the server backend is very limited. However, when you dive inside this traffic and reverse-engineer the communication inside, you are there. Welcome to the world full of own cryptography, revertible hash algorithms and no access control at all.
We would like to present our approach and a short guideline how to reverse engineer proprietary protocols. To demonstrate, we will show you few case-studies, which in our opinion are a quintessence of ""security by obscurity"" - the most interesting examples from real-life financial industry software, which is a particularly risky business regarding security.
What I learned about IoT Security ... and why it's so hard!Christoph Engelbert
Smart devices taking over our living rooms, our bed rooms, and, in general, our life. It has never been more important to build secure devices, but most companies seem to fail, and they fail hard. We (only) build systems for farms and barns, and still, I wanted security for Cow-stumers.
Building a mostly secure system is fairly simple. There is a good set of low-hanging fruits. Building a really locked down system is tough, though. Much harder than expected. Here is what I learned.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
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.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
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.
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.
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.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
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.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
8. Bostandoust.IR
#4
Don’t Use Graphical Environment on Servers
Real sysadmins do not needs any graphical environments!
# yum group remove "X Window System"
# yum group remove "GNOME Desktop"
# yum group remove "Server with GUI"
20. Bostandoust.IR
#16
Auto Logout Inactive Users After a Period of Time
# vi /etc/profile.d/autologout.sh
TMOUT = 120
readonly TMOUT
export TMOUT
# chmod +x /etc/profile.d/autologout.sh
21. Bostandoust.IR
#17
Restrict “cron” / “at” Usage To Authorized Users
# rm -f /etc/cron.deny
# echo USER >> /etc/cron.allow
# rm -f /etc/at.deny
# echo USER >> /etc/at.allow
37. Bostandoust.IR
#33
Turn Off IPv6 only if you are NOT using it
# echo install ipv6 /bin/true >> /etc/modprobe.conf
GRUB_CMDLINE_LINUX=”ipv6.disable=1”
# echo net.ipv6.conf.all.disable_ipv6 = 1 >> /etc/sysctl.conf
38. Bostandoust.IR
#34
Secure Access to OpenSSH Server
# vi /etc/ssh/sshd_config
HostbasedAuthentication no
ChallengeResponseAuthentication no
PasswordAuthentication no
PubkeyAuthentication yes
PermitEmptyPasswords no
IgnoreRhosts yes
PermitRootLogin no
X11Forwarding no
AllowUsers USER1 USER2