CVE-2023-2868

CRITICALCISA KEV

9.4

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.

CVE Details

CVSS v3.1 Score9.4

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/24/2023

Last Modified10/24/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorBarracuda Networks

ProductEmail Security Gateway (ESG) Appliance

Vulnerability NameBarracuda Networks ESG Appliance Improper Input Validation Vulnerability

KEV Date Added2023-05-26

Remediation Due Date2023-06-16

Ransomware UseUnknown

Affected Products

barracuda:email_security_gateway_300barracuda:email_security_gateway_300_firmwarebarracuda:email_security_gateway_400barracuda:email_security_gateway_400_firmwarebarracuda:email_security_gateway_600barracuda:email_security_gateway_600_firmwarebarracuda:email_security_gateway_800barracuda:email_security_gateway_800_firmwarebarracuda:email_security_gateway_900barracuda:email_security_gateway_900_firmware

Weaknesses (CWE)

CWE-20CWE-77

References

https://status.barracuda.com/incidents/34kx82j5n4q9(cve-coordination@google.com)

https://www.barracuda.com/company/legal/esg-vulnerability(cve-coordination@google.com)

https://status.barracuda.com/incidents/34kx82j5n4q9(af854a3a-2127-422b-91ae-364da2661108)

https://www.barracuda.com/company/legal/esg-vulnerability(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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