CRITICAL CISA KEV

CVE-2023-2868

CVSS v3

9.8

CRITICAL

EPSS Score

89.5%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

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.

CISA Known Exploited Vulnerability

Date Added
5/26/2023
Patch Due Date
6/16/2023
Ransomware Use
Unknown

Technical details

Published
5/24/2023

Frequently asked questions

What is CVE-2023-2868?

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.

Is CVE-2023-2868 actively exploited?

Yes. CVE-2023-2868 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 6/16/2023.

What is the CVSS score for CVE-2023-2868?

CVE-2023-2868 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-2868 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.