Detections
Analytics
CVE-2023-2868
critical
Description
A remote command injection vulnerability exists in the Barracuda Email Security Gateway (appliance form factor only) product effecting versions 5.1.3.001-9.2.0.006. The vulnerability arises out of a failure to comprehensively sanitize the processing of .tar file (tape archives). The vulnerability stems from incomplete input validation of a user-supplied .tar file as it pertains to the names of the files contained within the archive. As a consequence, a remote attacker can specifically format these file names in a particular manner that will result in remotely executing a system command through Perl's qx operator with the privileges of the Email Security Gateway product. This issue was fixed as part of BNSF-36456 patch. This patch was automatically applied to all customer appliances.
From the Tenable Blog
CVE-2023-2868: Barracuda and FBI Recommend Replacing Email Security Gateway (ESG) Devices Immediately
Published: 2023-08-30
Since October 2022, attackers have been exploiting a zero-day vulnerability in Barracuda Email Security Gateway devices, and both the vendor and the FBI urge customers to replace these devices immediately.
References
https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-317a
https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-207a
https://services.google.com/fh/files/misc/m-trends-2024.pdf
https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Year_in_Review_of_ZeroDays.pdf