CVE-2023-34237 Remote code execution via specially crafted script settings in SABnzbd
Attackers can execute arbitrary code via crafted notification script parameters if the web interface is exposed without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-34237?
CVE-2023-34237 is a high-severity code injection vulnerability in sabnzbd, published on 7 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-94
Which versions are affected by CVE-2023-34237?
It affects 1 product.
Products include Sabnzbd Sabnzbd.
How do I fix CVE-2023-34237?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-34237 being exploited?
There is no known exploitation of CVE-2023-34237 in the wild and no public exploit code.
Other vulnerabilities in sabnzbd
Sources
Also known as DEBIAN-CVE-2023-34237, GHSA-hhgh-xgh3-985r, UBUNTU-CVE-2023-34237.