SABnzbd up to 4.0.1 Notification Script code injection

Summaryinfo

A vulnerability described as critical has been identified in SABnzbd up to 4.0.1. Affected is an unknown function of the component Notification Script Handler. The manipulation results in code injection. This vulnerability is cataloged as CVE-2023-34237. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in SABnzbd up to 4.0.1. It has been classified as critical. Affected is an unknown code block of the component Notification Script Handler. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

SABnzbd is an open source automated Usenet download tool. A design flaw was discovered in SABnzbd that could allow remote code execution. Manipulating the Parameters setting in the Notification Script functionality allows code execution with the privileges of the SABnzbd process. Exploiting the vulnerabilities requires access to the web interface. Remote exploitation is possible if users[exposed their setup to the internet or other untrusted networks without setting a username/password. By default SABnzbd is only accessible from `localhost`, with no authentication required for the web interface. This issue has been patched in commits `e3a722` and `422b4f` which have been included in the 4.0.2 release. Users are advised to upgrade. Users unable to upgrade should ensure that a username and password have been set if their instance is web accessible.

The weakness was shared 06/08/2023 as GHSA-hhgh-xgh3-985r. The advisory is available at github.com. This vulnerability is traded as CVE-2023-34237 since 05/31/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 4.0.2 eliminates this vulnerability. Applying the patch 422b4fce7bfd56e95a315be0400cdfdc585df7cc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• SABnzbd

Version

• 4.0.0
• 4.0.1

License

• open-source

Website

• Product: https://github.com/sabnzbd/sabnzbd/

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