Barracuda Networks ESG Appliance Improper Input Validation Vulnerability (CVE-2023-2868)

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, partial service disruption. Federal agencies are required to remediate by 2023-06-16 under CISA BOD 22-01.

This is a Improper Input Validation (CWE-20) vulnerability in Barracuda Networks Email Security Gateway (ESG) Appliance. 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. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

Probably yes if any of these apply:

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2023-05-26 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2023-06-16.