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.

References

https://services.google.com/fh/files/misc/m-trends-2024.pdf

https://www.infosecurity-magazine.com/news/vulnerability-exploitation-rise/?&web_view=true

https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Year_in_Review_of_ZeroDays.pdf

https://www.tenable.com/blog/cve-2023-2868-barracuda-and-fbi-recommend-replacing-email-security-gateway-esg-devices

https://www.barracuda.com/company/legal/esg-vulnerability

https://status.barracuda.com/incidents/34kx82j5n4q9

Details

Source: Mitre, NVD

Published: 2023-05-24

Updated: 2023-06-01

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical