Vulnerability · Published Jun 7, 2023 · Assigned by GitHub_M
CVE-2023-34237Remote code execution via specially crafted script settings in SABnzbd
High 8.1
In plain English
A high-severity code injection in sabnzbd from sabnzbd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | sabnzbdplus | no fix listed | DEBIAN-CVE-2023-34237 |
| Debian:13 | sabnzbdplus | 4.0.2+dfsg-1 | DEBIAN-CVE-2023-34237 |
| Debian:14 | sabnzbdplus | 4.0.2+dfsg-1 | DEBIAN-CVE-2023-34237 |
| Ubuntu:22.04:LTS | sabnzbdplus | no fix listed | UBUNTU-CVE-2023-34237 |
| Ubuntu:24.04:LTS | sabnzbdplus | no fix listed | UBUNTU-CVE-2023-34237 |
| Ubuntu:25.10 | sabnzbdplus | no fix listed | UBUNTU-CVE-2023-34237 |
| Ubuntu:26.04:LTS | sabnzbdplus | no fix listed | UBUNTU-CVE-2023-34237 |
| Ubuntu:26.10 | sabnzbdplus | no fix listed | UBUNTU-CVE-2023-34237 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/sabnzbd/sabnzbd/security/advisories/GHSA-hhgh-xgh3-985r x_refsource_CONFIRM
- https://github.com/sabnzbd/sabnzbd/commit/422b4fce7bfd56e95a315be0400cdfdc585df7cc x_refsource_MISC
- https://github.com/sabnzbd/sabnzbd/commit/e3a722664819d1c7c8fab97144cc299b1c18b429 x_refsource_MISC
- https://sabnzbd.org/wiki/configuration/4.0/general x_refsource_MISC
- https://security.gentoo.org/glsa/202312-11