Vulnerability · Published Dec 22, 2023 · Assigned by GitHub_M

CVE-2023-50259Blind SSRF in /home/testslack endpoint

Medium 5.3

In plain English

A medium-severity server-side request forgery in Medusa from pymedusa. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.6%top 51.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Medusa is an automatic video library manager for TV shows. Versions prior to 1.0.19 are vulnerable to unauthenticated blind server-side request forgery (SSRF). The `testslack` request handler in `medusa/server/web/home/handler.py` does not validate the user-controlled `slack_webhook` variable and passes it to the `notifiers.slack_notifier.test_notify` method, then `_notify_slack` and finally `_send_slack` method, which sends a POST request to the user-controlled URL on line 103 in `/medusa/notifiers/slack.py`, which leads to a blind server-side request forgery (SSRF). This issue allows for crafting POST requests on behalf of the Medusa server. Version 1.0.19 contains a fix for the issue.

Affected products (as reported)

Vendor	Product	Versions
pymedusa	Medusa	< 1.0.19

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/pymedusa/Medusa/security/advisories/GHSA-8mcr-vffr-jwxv x_refsource_CONFIRM
https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/notifiers/slack.py#L103 x_refsource_MISC
https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/server/web/home/handler.py#L168 x_refsource_MISC
https://github.com/pymedusa/Medusa/releases/tag/v1.0.19 x_refsource_MISC
https://securitylab.github.com/advisories/GHSL-2023-201_GHSL-2023-202_Medusa/ x_refsource_MISC