Server-Side Request Forgery and Open Redirect in AllTube Download

Impact

On releases prior to 3.0.3, an attacker could craft a special HTML page to trigger either an open redirect attack or a Server-Side Request Forgery attack (depending on how AllTube is configured).

The impact is mitigated by the fact the SSRF attack is only possible when the stream option is enabled in the configuration. (This option is disabled by default.)

Patches

3.0.3 contains a fix for this vulnerability.
(The 1.x and 2.x releases are not maintained anymore.)

The fix requires applying a patch to youtube-dl to disable its generic extractor. If you are using the version of youtube-dl bundled with 3.0.3, it is already patched.
However, if you are using your own unpatched version of youtube-dl you might still be vulnerable.

References

• https://github.com/Rudloff/alltube/commit/8913f27716400dabf4906a5ad690a5238f73496a
• https://github.com/ytdl-org/youtube-dl/issues/30691