#VU84804 Code Injection in SABnzbd - CVE-2023-34237

Vulnerability identifier: #VU84804

Vulnerability risk: Medium

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-34237

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SABnzbd
Client/Desktop applications / Other client software

Vendor: SABnzbd

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation when handling parameters settings in the Notification Script functionality. A remote attacker with access to the application's web interface can pass specially crafted parameters and execute arbitrary code on the system.

Note, by default the web interface is accessible without authentication only from localhost.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SABnzbd: 1.1.0 Beta1 - 3.7.2

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External links
http://sabnzbd.org/wiki/configuration/4.0/general
http://github.com/sabnzbd/sabnzbd/security/advisories/GHSA-hhgh-xgh3-985r
http://github.com/sabnzbd/sabnzbd/commit/422b4fce7bfd56e95a315be0400cdfdc585df7cc
http://github.com/sabnzbd/sabnzbd/commit/e3a722664819d1c7c8fab97144cc299b1c18b429
http://security.gentoo.org/glsa/202312-11

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.