GHSA-fg86-4c2r-7wxw
TorrentPier Deserialization of Untrusted Data vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | torrentpier/torrentpier | < 2.4.4 | 2.4.4 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Summary
In `torrentpier/library/includes/functions.php`, `get_tracks()` uses the unsafe native PHP serialization format to deserialize user-controlled cookies:
https://github.com/torrentpier/torrentpier/blob/84f6c9f4a081d9ffff4c233098758280304bf50f/library/includes/functions.php#L41-L60
### PoC
One can use [`phpggc`](https://github.com/ambionics/phpggc/) and the chain `Guzzle/FW1` to write PHP code to an arbitrary file, and execute commands on the system. For instance, the cookie `bb_t` will be deserialized when browsing to `viewforum.php`.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/torrentpier/torrentpier/security/advisories/GHSA-fg86-4c2r-7wxw
- https://nvd.nist.gov/vuln/detail/CVE-2024-40624
- https://github.com/torrentpier/torrentpier/commit/ed37e6e522f345f2b46147c6f53c1ab6dec1db9e
- https://github.com/torrentpier/torrentpier
- https://github.com/torrentpier/torrentpier/blob/84f6c9f4a081d9ffff4c233098758280304bf50f/library/includes/functions.php#L41-L60