Vulnerability in Novik ruTorrent

[ Description ]Official description

ruTorrent before 5.3.20 contains a path traversal vulnerability in the datadir plugin that allows authenticated users to escape the topDirectory jail because correctDirectory() does not resolve symbolic links. Attackers can submit a datadir path through a symlink under their top directory to create directories and move torrent data to locations writable by the web server or rtorrent.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/Novik/ruTorrent
• github.com/Novik/ruTorrent/blob/v5.3.19/php/settings.php
• github.com/Novik/ruTorrent/blob/v5.3.19/plugins/datadir/action.php
• github.com/Novik/ruTorrent/commit/2059ff12464b2ce14fd0f53df8d6b19fb6b8a5eb
• github.com/Novik/ruTorrent/issues/3474
• www.vulncheck.com/advisories/rutorrent-before-5.3.20-path-traversal-via-datadir-plugin-…