notes, honeypot, and exploit demo for the xz backdoor (CVE-2024-3094) - amlweems/xzbot
A secret program called "Project Ghostbusters" saw Facebook devise a way to intercept and decrypt the encrypted network traffic of Snapchat users to study their behavior.
Une enquête a été ouverte et confiée à la brigade de lutte contre la cybercriminalité.
Malicious updates made to a ubiquitous tool were a few weeks away from going mainstream.
The Putin regime conducts large-scale propaganda not only through its state media but also through “useful idiots,” who focus on demonizing the US, EU, and NATO and have right- or left-wing views. New “multilingual international media” have emerged that write in a way that suits the Kremlin and spread pro-Russian narratives and disinformation, replacing Russia Today and Sputnik, which have received a ban in Europe.
Jamf Threat Labs dissects ongoing infostealer attacks targeting macOS users. Each with different means of compromising victim’s Macs but with similar aims: to steal sensitive user data.
In 2023, threat actors continued to exploit a variety of vulnerabilities — both newly discovered weaknesses and unresolved issues — to carry out sophisticated attacks on global organizations. The number of documented software vulnerabilities continued to rise, and threat actors were quick to capitalize on new vulnerabilities and leverage recent releases of publicly available vulnerability research and exploit code to target entities. However, while there was a high number of vulnerabilities released in the reporting period, only a handful actually were weaponized in attacks. The ones of most interest are those that threat actors use for exploitation. In this report, we’ll analyze the numbers and types of vulnerabilities in 2023 with a view to understanding attack trends and how organizations can better defend themselves.
This year, we’ve partnered with Sucuri. With both of our data combined, we can cover the entire timeline of security incidents from the vulnerability being found to the point where malware infection gets detected on a vulnerable website.
2023 was another record year of new vulnerabilities being discovered and fixed in the WordPress ecosystem. In 2023, we added 5,948 new vulnerabilities to the Patchstack vulnerability database. That’s 24% more than in 2022.
Claro Company, the largest telecom operator in Central and South America, disclosed being hit by ransomware. Representatives shared this information in response to the service disruptions in several regions. From the ransom note it becomes clear that the attackers are Trigona ransomware.
CVE-2024-3094 is the new hot one and it’s extremely critical; however, impact should be limited as most normal linux distros are unaffected. Here’s some stuff to know:
This is still a new situation. There is a lot we don't know. We don't know if there are more possible exploit paths. We only know about this one path. Please update your systems regardless. Unknown unknowns are safer than known unknowns.
This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't know much about what's going on.
esterday Andres Freund emailed oss-security@ informing the community of the discovery of a backdoor in xz/liblzma, which affected OpenSSH server (huge respect for noticing and investigating this). Andres' email is an amazing summary of the whole drama, so I'll skip that. While admittedly most juicy and interesting part is the obfuscated binary with the backdoor, the part that caught my attention – and what this blogpost is about – is the initial part in bash and the simple-but-clever obfuscation methods used there. Note that this isn't a full description of what the bash stages do, but rather a write down of how each stage is obfuscated and extracted.
