/ Zyxel security advisory for multiple vulnerabilities in firewalls and APs
Zyxel has released patches addressing multiple vulnerabilities in some firewall and access point (AP) versions. Users are advised to install the patches for optimal protection:
- some firewall and AP versions could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP
- IPSec VPN feature in some firewall versions could allow an attacker to achieve unauthorized remote code execution
- LAN-based attacker to cause denial-of-service (DoS)
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-21-2024
/ OpenBLD.net PDP Beta Program Announce
Personal DoH Profiling (PDP), a new service that provides:
- Complete isolation of your DNS requests, ensuring that no one can track your online activity.
- Personalized DNS settings, so you can block ads, malicious websites, and other unwanted content.
- Robust security with DNSSEC, TLSv1.2, and TLSv1.3.
- Self Allow/Block lists controls and more...
Details: /channel/openbld/56
📢 Открытый практикум Linux by Rebrain: bash
Время:
• 28 Февраля (Среда) 20:00 МСК
Программа:
• Что такое командная оболочка
• Bash - удобный инструмент для работы в Linux
• Внешние и внутренние команды
• Стандартные потоки информации
• Порядок интерпретации команд
↘ Детали
Ведёт:
Андрей Буранов – Системный администратор в департаменте VK Play. 10+ лет опыта работы с ОС Linux.
📢 VDSina present new hosting project on VDSina.com
With servers based on the latest AMD EPYC processors. Processor frequency 3.55 GHz. Triple redundant NVMe storage. Internet port speed 10 Gbit/sec. Data-center located in Netherlands.
Some of services from lab.sys-adm.in are using this VPS hosting for own needs (like as Chat Prettier, Masha Banhammer or Get Telegram IDs Telegram bots). Price started from 0.16
$ in day, it's great for VPN, websites, telegram bots and other needs...
You can see more details on official VDSina.com site
/ New macOS Backdoor Written in Rust Shows Possible Link with Windows Ransomware Group
https://www.bitdefender.com/blog/labs/new-macos-backdoor-written-in-rust-shows-possible-link-with-windows-ransomware-group/
/ New WiFi Authentication Vulnerabilities Discovered
One vulnerability affects Android, ChromeOS and Linux devices connecting to enterprise WiFi networks, another affects home WiFi using a Linux device as a wireless access point:
https://www.top10vpn.com/research/wifi-vulnerabilities/
/ Snap Trap: The Hidden Dangers Within Ubuntu’s Package Suggestion System
https://www.aquasec.com/blog/snap-trap-the-hidden-dangers-within-ubuntus-package-suggestion-system/
/ After a tip, ExpressVPN acts swiftly to protect customers
Express disclosure VPN users browsing data..
https://www.expressvpn.com/blog/windows-app-dns-requests/
/ VirtualBox KVM public release
https://cyberus-technology.de/articles/vbox-kvm-public-release
/ Critical Security Issue Affecting TeamCity On-Premises (CVE-2024-23917)
https://blog.jetbrains.com/teamcity/2024/02/critical-security-issue-affecting-teamcity-on-premises-cve-2024-23917/
/ SmartScreen Vulnerability CVE-2023-36025 - Exploring the Latest Mispadu Stealer Variant
https://unit42.paloaltonetworks.com/mispadu-infostealer-variant/
/ runc: CVE-2024-21626: high severity container breakout attack
https://www.openwall.com/lists/oss-security/2024/01/31/6
/ HeadCrab 2.0: Evolving Threat in Redis Malware Landscape
Technical analysis of HeadCrab 2.0 advanced malware:
https://www.aquasec.com/blog/headcrab-2-0-evolving-threat-in-redis-malware-landscape/
📢 Практикумы DevOps, Linux, Networks, Golang: расписание на Февраль 2024
• 6 февраля DevOps: Проксирование в Nginx и Angie
• 7 февраля Linux: RAID массивы
• 8 февраля Linux: Погружение в VoIP3: Dialplan в Asterisk
• 12 февраля Linux: RAID массивы 2
• 13 февраля DevOps: Балансировка нагрузки в Nginx и Angie
• 14 февраля Linux: DWARF, ELF, ptrace или как работает ваш дебагер. Часть 2
• 15 февраля DevOps: Ментальная модель Kafka
Открытые Февральские практикумы - Все детали
/ Discovers Important Vulnerabilities in GNU C Library’s syslog()
https://blog.qualys.com/vulnerabilities-threat-research/2024/01/30/qualys-tru-discovers-important-vulnerabilities-in-gnu-c-librarys-syslog
/ Details on Apple’s Shortcuts Vulnerability: A Deep Dive into CVE-2024-23204
https://www.bitdefender.com/blog/labs/details-on-apples-shortcuts-vulnerability-a-deep-dive-into-cve-2024-23204/
/ SSH-Snake: Automatic traversal of networks using SSH private keys
SSH-Snake performs three basic tasks:
- On the current system, find any SSH private keys,
- On the current system, find any hosts or destinations (user@host) that the private keys may be accepted on,
- Attempt to SSH into all of the discovered destinations using all of the private keys discovered.
https://joshua.hu/ssh-snake-ssh-network-traversal-discover-ssh-private-keys-network-graph
/ Pelmeni Wrapper: New Wrapper of Kazuar (Turla Backdoor)
- Infection Chain
- Technical analysis: Kazuar (DotNET) and Pelmeni Wrapper (Wrapper DLL)
- IoC's
https://lab52.io/blog/pelmeni-wrapper-new-wrapper-of-kazuar-turla-backdoor/
😡 OpenBLD.net Preventing: Malicious Campaign Impacting Azure Cloud Environments
New researched malicious campaign from Proofpoint researchers, detected integrating credential phishing and cloud account takeover (ATO) techniques...
This campaign contains multiple endpoints which also included domains used as malicious infrastructure...
So - All malicious infrastructure domains sent to OpenBLD.net ecosystem ✈️
Be safe and be focused my friends 😎
/ Serious Vulnerability in the Internet Infrastructure Fundamental design flaw in DNSSEC discovered
https://www.athene-center.de/en/news/press/key-trap
📢 Открытый практикум DevOps by Rebrain: Работаем с бэклогом команды DevOps
Время:
• 20 Февраля (Вторник) 19:00 МСК
Программа:
• Построение процесса бэклога команды
• Подход к сквозному приоритету задач
• Контроль сроков
↘ Детали
Ведёт:
• Александр Крылов – Опыт работы в DevOps более 7 лет. Спикер конференций: DevOps conf, TeamLead conf, Highload conf. Автор курса по Haproxy на Rebrain.
/ Water Hydra Targets Traders With Microsoft Defender SmartScreen Zero-Day
https://www.trendmicro.com/en_us/research/24/b/cve202421412-water-hydra-targets-traders-with-windows-defender-s.html
Internet Shortcut Files Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21412
/ Fake LastPass in AppStore
Official warning:
https://blog.lastpass.com/2024/02/warning-fraudulent-app-impersonating-lastpass-currently-available-in-apple-app-store/
📢 Открытый практикум Linux by Rebrain: RAID массивы 2
• 12 Февраля (Понедельник) 20:00 МСК
Программа:
• Для чего нужна очистка метаданных mdadm?
• Как перенести данные с обычного диска на RAID1?
• Как понять был ли диск в RAID массиве mdadm?
• Как получить данные с диска из RAID1?
• Увеличение размера RAID массива
↘ Детали
Ведёт:
Андрей Буранов – Системный администратор VK Play. 10+ лет опыта работы с ОС Linux. 8+ лет опыта преподавания.
/ ResumeLooters gang infects websites with XSS scripts and SQL injections to vacuum up job seekers' personal data and CVs
https://www.group-ib.com/blog/resumelooters/
/ QNAP OS command injection vulnerability
Vulnerability in QTS, QuTS hero and QuTScloud (high):
https://www.qnap.com/en/security-advisory/qsa-23-47
/ AnyDesk - compromised production systems
AnyDesk - compromised any keys:
https://anydesk.com/en/public-statement
/ VajraSpy: A Patchwork of espionage apps
These apps share the same malicious functionality, being capable of exfiltrating the following:
- contacts,
- SMS messages,
- call logs,
- device location,
- a list of installed apps, and
files with specific extensions (.pdf, .doc, .docx, .txt, .ppt, .pptx, .xls, .xlsx, .jpg, .jpeg, .png, .mp3, .Om4a, .aac, and .opus).
Technical review:
https://www.welivesecurity.com/en/eset-research/vajraspy-patchwork-espionage-apps/
/ GitHub Hardening Guide 🛡
Preambula:
Mercedes-Benz Source Code at Risk: GitHub Token Mishap Sparks Major Security Concerns
The story:
It all started during one of our internet scans where we identified a GitHub Token leaked by a Full Time Employee at Mercedez, in his GitHub Repository. The GitHub Token gave ‘unrestricted’ and ‘unmonitored’ access to the entire source code hosted at the Internal GitHub Enterprise Server. Redhunt Says.
Conclusion:
The essence of the story is this: even in large companies, failures happen, always be careful, scan tokens in workflow actions...
Next steps:
GitHub Hardening Guide: https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions
📢 Конкурс от Core 24/7 на 10 ваучеров на бесплатное обучение
Ваучеры дают 100% скидку на курс или экзамен из списка ниже до 17.01.2025:
— Каталог на Linux Foundation
— Сертификационному экзамену (каталог)
— или пакету (курс + сертификация)
Подвод итогов 9 февраля, детали здесь - https://core247.io/cncf