VULNERABILITY INTELLIGENCE

CVE-2023-2868

CVSS score9.4 CRITICAL
EPSS probability86.84%
CISA KEVKnown exploited vulnerability
Published2023-05-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Known Exploited Vulnerability

Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

Vendor / product: Barracuda Networks / Email Security Gateway (ESG) Appliance

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.

Weakness classification

  • cve-coordination@google.com: CWE-20
  • nvd@nist.gov: CWE-77

Primary references