CVE-2023-32322 – Arbitrary file read in Ombi

https://notcve.org/view.php?id=CVE-2023-32322

Ombi is an open source application which allows users to request specific media from popular self-hosted streaming servers. Versions prior to 4.38.2 contain an arbitrary file read vulnerability where an Ombi administrative user may access files available to the Ombi server process on the host operating system. Ombi administrators may not always be local system administrators and so this may violate the security expectations of the system. The arbitrary file read vulnerability was present in `ReadLogFile` and `Download` endpoints in `SystemControllers.cs` as the parameter `logFileName` is not sanitized before being combined with the `Logs` directory. When using `Path.Combine(arg1, arg2, arg3)`, an attacker may be able to escape to folders/files outside of `Path.Combine(arg1, arg2)` by using ".." in `arg3`. • https://docs.ombi.app/guides/installation/#windows https://github.com/Ombi-app/Ombi/blob/v4.36.1/src/Ombi/Controllers/V2/SystemController.cs#L46 https://github.com/Ombi-app/Ombi/blob/v4.36.1/src/Ombi/Controllers/V2/SystemController.cs#L58 https://github.com/Ombi-app/Ombi/commit/b8a8f029d80454d582bc4a2a05175106809335d0 https://github.com/Ombi-app/Ombi/security/advisories/GHSA-28j3-84m7-gpjp • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •