Category: SANS Internet Storm Center, InfoCON: green

Scans for Fortinet FortiOS and the CVE-2024-21762 vulnerability, (Wed, Mar 20th)

Late last week, an exploit surfaced on GitHub for CVE-2024-21762 [1]. This vulnerability affects Fortinet's FortiOS. A patch was released on February 8th. Owners of affected devices had over a month to patch [2]. A few days prior to the GitHub…

Attacker Hunting Firewalls, (Tue, Mar 19th)

Firewalls and other perimeter devices are a huge target these days. Ivanti, Forigate, Citrix, and others offer plenty of difficult-to-patch vulnerabilities for attackers to exploit. Ransomware actors and others are always on the lookout for new victims. However, being and…

Obfuscated Hexadecimal Payload, (Sat, Mar 16th)

This PE file contains an obfuscated hexadecimal-encoded payload. When I analyze it with base64dump.py searching for all supported encodings, a very long payload is detected: This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original…

5Ghoul Revisited: Three Months Later, (Fri, Mar 15th)

About three months ago, I wrote about the implications and impacts of 5Ghoul in a previous diary [1]. The 5Ghoul family of vulnerabilities could cause User Equipment (UEs) to be continuously exploited (e.g. dropping/freezing connections, which would require manual rebooting…