Roughly nine years ago, KrebsOnSecurity profiled a Pakistan-based cybercrime group called "The Manipulaters," a sprawling web hosting network of phishing and spam delivery platforms. In January 2024, The Manipulaters pleaded with this author to unpublish previous stories about their work,…
On March 29, right before Easter weekend, we received notifications about something unusual happening with the open-source project XZ Utils, which provides lossless data compression on virtually all Unix-like operating systems, including Linux.
The initial warning was sent to the Open Source Security mailing list sent by Andres Freund, who discovered that XZ Utils versions 5.6.0 and 5.6.1 are impacted by a backdoor. A few hours later, the US government’s CISA and OpenSSF warned about a critical problem: an installed XZ backdoored version could lead to unauthorized remote access.
A threat activity cluster tracked as Earth Freybug has been observed using a new malware called UNAPIMON to fly under the radar.
"Earth Freybug is a cyberthreat group that has been active since at least 2012 that focuses on espionage and financially motivated activities," Trend Micro security researcher Christopher So said in a report published today.
Let’s Encrypt is proud to introduce Sunlight, a new implementation of a Certificate Transparency log that we built from the ground up with modern Web PKI opportunities and constraints in mind. In partnership with Filippo Valsorda, who led the design and implementation, we incorporated feedback from the broader transparency logging community, including the Chrome and TrustFabric teams at Google, the Sigsum project, and other CT log and monitor operators. Their insights have been instrumental in shaping the project’s direction.
Andres Freund published the existence of the xz attack on 2024-03-29 to the public oss-security@openwall mailing list. The day before, he alerted Debian security and the (private) distros@openwall list. In his mail, he says that he dug into this after “observing a few odd symptoms around liblzma (part of the xz package) on Debian sid installations over the last weeks (logins with ssh taking a lot of CPU, valgrind errors).”
At a high level, the attack is split in two pieces: a shell script and an object file. There is an injection of shell code during configure, which injects the shell code into make. The shell code during make adds the object file to the build. This post examines the shell script. (See also my timeline post.)
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.
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.