9.8

CVE-2023-2868

Warnung
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Barracuda ≫ Email Security Gateway 300 Firmware Version >= 5.1.3.001 <= 9.2.0.006
Barracuda ≫ Email Security Gateway 400 Firmware Version >= 5.1.3.001 <= 9.2.0.006
Barracuda ≫ Email Security Gateway 600 Firmware Version >= 5.1.3.001 <= 9.2.0.006
Barracuda ≫ Email Security Gateway 800 Firmware Version >= 5.1.3.001 <= 9.2.0.006
Barracuda ≫ Email Security Gateway 900 Firmware Version >= 5.1.3.001 <= 9.2.0.006

26.05.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog

Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

Schwachstelle

Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection.

Beschreibung

Apply updates per vendor instructions.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 89.52% 0.995
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cve-coordination@google.com 9.4 3.9 5.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.