Barracuda Email Security Gateway up to 9.2.0.006 TAR File command injection

Summaryinfo

A vulnerability classified as critical was found in Barracuda Email Security Gateway up to 9.2.0.006. This affects an unknown part of the component TAR File Handler. Such manipulation leads to command injection. This vulnerability is referenced as CVE-2023-2868. It is possible to launch the attack remotely. Furthermore, an exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Barracuda Email Security Gateway up to 9.2.0.006 (Anti-Malware Software). Affected by this issue is an unknown function of the component TAR File Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 05/24/2023. The advisory is shared for download at status.barracuda.com. This vulnerability is handled as CVE-2023-2868 since 05/24/2023. Technical details are unknown but an exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

It is declared as attacked. This issue was added on 05/26/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 06/16/2023:

Apply updates per vendor instructions.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (770). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Anti-Malware Software

Vendor

• Barracuda

Name

• Email Security Gateway

Version

• 9.2.0.006

License

• commercial

Website

• Vendor: https://www.barracuda.com/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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