Sys-Admin InfoSec

26 Mar 2024 08:12

/ ZenHammer: Rowhammer Attacks on AMD Zen-based Platforms

https://comsec.ethz.ch/research/dram/zenhammer/

Sys-Admin InfoSec

21 Mar 2024 15:07

/ AWS one-click account takeover vulnerability...

..one-click account takeover vulnerability in the AWS Managed Workflows Apache Airflow service that could have allowed full takeover of a victim’s web management panel of the Airflow instance:

https://www.tenable.com/blog/flowfixation-aws-apache-airflow-service-takeover-vulnerability-and-why-neglecting-guardrails

Sys-Admin InfoSec

20 Mar 2024 16:32

/ SQLi (SQL Injection) org.postgresql:postgresql Dependency in Bamboo Data Center and Server

This Critical severity org.postgresql:postgresql Dependency vulnerability was introduced in versions 8.2.1, 9.0.0, 9.1.0, 9.2.1, 9.3.0, 9.4.0, and 9.5.0 of Bamboo Data Center and Server.

https://jira.atlassian.com/browse/BAM-25716

Sys-Admin InfoSec

18 Mar 2024 04:55

/ Interesting Multi-Stage StopCrypt Ransomware Variant Propagating in the Wild

*with bypass antivirus

https://blog.sonicwall.com/en-us/2024/03/new-multi-stage-stopcrypt-ransomware/

Sys-Admin InfoSec

14 Mar 2024 20:04

/ DarkGate Operators Exploit Microsoft Windows SmartScreen Bypass in Zero-Day Campaign

https://www.trendmicro.com/en_us/research/24/c/cve-2024-21412--darkgate-operators-exploit-microsoft-windows-sma.html

Sys-Admin InfoSec

13 Mar 2024 12:13

/ FortiOS & FortiProxy - Out-of-bounds Write in captive portal

..may allow an inside attacker who has access to captive portal to execute arbitrary code or commands via specially crafted HTTP requests:

https://www.fortiguard.com/psirt/FG-IR-23-328

Sys-Admin InfoSec

11 Mar 2024 14:07

📢 Integration of OpenBLD.net with URLhaus by abuse.ch

URLhaus is a project operated by abuse.ch. Its purpose is to collect, track, and share malware URLs, aiding network administrators and security analysts in safeguarding their networks and customers from cyber threats.

Now, you can check the malicious domain ownership with OpenBLD.net alongside Quad9, AdGuard, Cloudflare, ProtonDNS on abuse.ch.

In addition, you can incorporate abuse.ch lists into your security solutions, just as OpenBLD.net does.

You can check this as example on:
🔹 https://urlhaus.abuse.ch/host/dukeenergyltd.top

Here's to security for us all. Cheers!)

Sys-Admin InfoSec

07 Mar 2024 11:45

📢 Открытый практикум DevOps by Rebrain: HTTPS в Nginx и Angie
⁠
Время:

• 12 Марта (Вторник) 19:00 МСК

Программа:

• Разбираем принципы TLS и HTTPS
• Учимся получать бесплатные сертификаты
• Автоматизируем их обновление
• Настраиваем быстрый и безопасный HTTPS для сайта

↘ Детали

Ведёт:

Николай Лавлинский – Веб-разработчик более 15 лет. Спикер конференций HighLoad++, РИТ++. Специализация: ускорение сайтов и веб-приложений.

Sys-Admin InfoSec

06 Mar 2024 11:08

/ WogRAT Malware Exploits aNotepad (Windows, Linux)

AhnLab Security intelligence Center (ASEC) has recently discovered the distribution of backdoor malware via aNotepad, a free online notepad platform. Said malware supports both the PE format that targets the Windows system and the ELF format that targets the Linux system. As the threat actor used the string ‘WingOfGod’ during the development of the malware, it is classified as WogRAT:

https://asec.ahnlab.com/en/62446/

Sys-Admin InfoSec

06 Mar 2024 04:53

/ VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability (Critical)

A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host..:

https://www.vmware.com/security/advisories/VMSA-2024-0006.html

Sys-Admin InfoSec

29 Feb 2024 15:51

/ 0-Click Account Takeover on Facebook

https://infosecwriteups.com/0-click-account-takeover-on-facebook-e4120651e23e

Sys-Admin InfoSec

29 Feb 2024 11:45

📢 Открытый практикум Linux by Rebrain: LVM - первая часть
⁠
Время:

• 6 Марта (Среда) 20:00 МСК

Программа:

• От логических разделов к логическим томам
• PV, VG, LV
• Практика работы с LVM - создание LV, манипуляции со свободным пространством

↘ Детали

Ведёт:

Андрей Буранов – Системный администратор в департаменте VK Play. 10+ лет опыта работы с ОС Linux.

Sys-Admin InfoSec

28 Feb 2024 07:35

📢 AppSecFest Объявляет CFP набор 🚀

AppSecFest 2024 ориентировочно пройдет ~3 мая в Almaty, будет разделен на несколько зон:

🔹 App Zone: сосредоточен на трендах разработки ПО (mobile, web, блокчейн, микросервисы и т.п.). Трендах Dev и DevOps AI/ML в SDLC.
🔹 Sec Zone: актуальная безопасность приложений (SAST, SCA, DAST, RASP. API, IaC и Container Security. ASTO, WAF, IAST, MAST, Secrets Management). Векторы атак и управление уязвимостями

Нужны спикеры! Ты специалист в App/Sec? Тогда welcome to CFP:
🔹 https://forms.gle/EBAAArtHtoCmSMri7

Sys-Admin InfoSec

27 Feb 2024 10:01

/ 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

Sys-Admin InfoSec

26 Feb 2024 08:54

/ 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

Sys-Admin InfoSec

22 Mar 2024 16:51

/ GoFetch is a microarchitectural side-channel attack that can extract secret keys from constant-time cryptographic implementations via data memory-dependent prefetchers (DMPs).

https://gofetch.fail/

Sys-Admin InfoSec

21 Mar 2024 08:45

📢 Открытый практикум DevOps by Rebrain: Как выживать инженеру в потоке тонны звонков
⁠
Время:

• 26 Марта (Вторник) 19:00 МСК

Программа:

• Подходы к оптимизации времени
• Фреймворк потока
• Капсульный подход управления календарём
• Тулсет

↘ Регистрация

Ведёт:

Александр Крылов – Опыт работы в DevOps более 7 лет. Спикер конференций: DevOps conf, TeamLead conf, Highload conf. Автор курса по Haproxy на Rebrain.

Sys-Admin InfoSec

20 Mar 2024 10:27

/ UDP-based, application-layer protocol implementations are vulnerable to network loops

..An unauthenticated attacker can use maliciously-crafted packets against a UDP-based vulnerable implementation of application protocols (e.g., DNS, NTP, TFTP) that can lead to Denial-of-Service (DOS) and/or abuse of resources..:

https://kb.cert.org/vuls/id/417980

Sys-Admin InfoSec

14 Mar 2024 20:05

/ What a Cluster: Local Volumes Vulnerability in Kubernetes

https://www.akamai.com/blog/security-research/kubernetes-local-volumes-command-injection-vulnerability-rce-system-privileges

Sys-Admin InfoSec

14 Mar 2024 08:45

📢 Открытый практикум: Выбираем форк MySQL от Oracle до MariaDB
⁠
Время:

• 19 Марта (Вторник) 19:00 МСК

Программа:

• Обзор открытых форков в экосистеме MySQL
• Oracle MySQL
• Percona Server for MySQL
• MariaDB
• Совместимость, возможности перехода
• Сравнение функциональности

↘ Детали

Ведёт:

Николай Лавлинский – Веб-разработчик более 15 лет. Спикер конференций HighLoad++, РИТ++. Специализация: ускорение сайтов и веб-приложений.

Sys-Admin InfoSec

11 Mar 2024 20:07

/ MAGNET GOBLIN TARGETS PUBLICLY FACING SERVERS USING 1-DAY VULNERABILITIES

https://research.checkpoint.com/2024/magnet-goblin-targets-publicly-facing-servers-using-1-day-vulnerabilities/

Sys-Admin InfoSec

08 Mar 2024 04:56

/ Cisco Secure Client Carriage Return Line Feed Injection Vulnerability (high)

Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-client-crlf-W43V4G7

Sys-Admin InfoSec

07 Mar 2024 10:41

/ Spinning YARN - A New Linux Malware Campaign Targets Docker, Apache Hadoop, Redis and Confluence

Cado Security Labs researchers have recently encountered an emerging malware campaign targeting misconfigured servers running the following web-facing services.

- Apache Hadoop YARN,
- Docker,
- Confluence and
- Redis

Detailed research - Details

Sys-Admin InfoSec

06 Mar 2024 08:10

/ Apple pathes OS 17.4 and iPadOS 17.4

Impact: An app may be able to read sensitive location information:

https://support.apple.com/en-us/HT214081

Sys-Admin InfoSec

04 Mar 2024 10:25

😡 OpenBLD.net - Phobos Ransomware Attack Mitigations

The Federal Bureau of Investigation (FBI), the Cybersecurity and Infrastructure Security Agency (CISA), and the Multi-State Information Sharing and Analysis Center (MS-ISAC) are releasing this joint CSA, to disseminate known TTPs and IOCs associated with the Phobos ransomware variants observed as recently as February 2024...

Phobos actors run executables like 1saas.exe or cmd.exe to deploy additional Phobos payloads that have elevated privileges enabled. Additionally, Phobos actors can use the previous commands to perform various windows shell functions. The Windows command shell enables threat actors to control various aspects of a system, with multiple permission levels required for different subsets of commands.

How to mitigate risks:
- Secure RDP
- Reduce administratiove provigese scoping
- Use OpenBLD.net or similar services

Technical details on CISA site:
- https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-060a

Sys-Admin InfoSec

29 Feb 2024 14:42

/ Data Scientists Targeted by Malicious Hugging Face ML Models with Silent Backdoor

How can loading an ML model lead to payload code execution? Analysis:

https://jfrog.com/blog/data-scientists-targeted-by-malicious-hugging-face-ml-models-with-silent-backdoor/

Sys-Admin InfoSec

28 Feb 2024 12:32

/ XSS Vulnerability in LiteSpeed Cache Plugin Affecting 4+ Million Sites

The plugin LiteSpeed Cache (free version), which has over 4 million active installations, is known as the most popular caching plugin in WordPress.

This plugin suffers from unauthenticated site-wide stored XSS vulnerability and could allow any unauthenticated user from stealing sensitive information to, in this case, privilege escalation on the WordPress site by performing a single HTTP request.

https://patchstack.com/articles/xss-vulnerability-in-litespeed-cache-plugin-affecting-4-million-sites/

Sys-Admin InfoSec

28 Feb 2024 03:53

/ Announcing bpftop: Streamlining eBPF performance optimization

https://netflixtechblog.com/announcing-bpftop-streamlining-ebpf-performance-optimization-6a727c1ae2e5

Sys-Admin InfoSec

27 Feb 2024 06:27

/ 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/

Sys-Admin InfoSec

22 Feb 2024 16:53

/ 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