CVE-2024-21510: gitlab-cng-18.2

Vulnerability summary

CVE-2024-21510 is a medium (CVSS 5.4) vulnerability in gitlab-cng-18.2. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.1% of scored vulnerabilities.

Timeline

1. 01-11-2024
   PublishedVulnerability first disclosed.
2. 18-11-2024
   Last modifiedVulnerability information updated.

Description

Versions of the package sinatra from 0.0.0 are vulnerable to Reliance on Untrusted Inputs in a Security Decision via the X-Forwarded-Host (XFH) header. When making a request to a method with redirect applied, it is possible to trigger an Open Redirect Attack by inserting an arbitrary address into this header. If used for caching purposes, such as with servers like Nginx, or as a reverse proxy, without handling the X-Forwarded-Host header, attackers can potentially exploit Cache Poisoning or Routing-based SSRF.

• CWE-807Reliance on Untrusted Inputs in a Security DecisionThe product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.