CVE-2023-2868

CRITICAL CISA KEV EPSS 99.7%
Published May 24, 20233y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published May 24, 2023 3y ago
Last Modified Jun 17, 2026 2w ago
KEV Listed May 26, 2023 3y ago
KEV Due Jun 16, 2023 1112d overdue

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

CISA Known Exploited Overdue 1112d
Added
May 26, 2023
Due
Jun 16, 2023

Apply updates per vendor instructions.

EPSS Exploit Probability
99.7% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-77 Command Injection Injection

Affected Products 10

VendorProductVersionRange
barracudaemail_security_gateway_300_firmware*≥5.1.3.001  –  ≤9.2.0.006
barracudaemail_security_gateway_300*any
barracudaemail_security_gateway_400_firmware*≥5.1.3.001  –  ≤9.2.0.006
barracudaemail_security_gateway_400*any
barracudaemail_security_gateway_600_firmware*≥5.1.3.001  –  ≤9.2.0.006
barracudaemail_security_gateway_600*any
barracudaemail_security_gateway_800_firmware*≥5.1.3.001  –  ≤9.2.0.006
barracudaemail_security_gateway_800*any
barracudaemail_security_gateway_900_firmware*≥5.1.3.001  –  ≤9.2.0.006
barracudaemail_security_gateway_900*any

References 3

  • status.barracuda.com https://status.barracuda.com/incidents/34kx82j5n4q9
    Vendor Advisory
  • barracuda.com https://www.barracuda.com/company/legal/esg-vulnerability
    MitigationVendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868
    US Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.