| Name | CVE-2024-21510 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1087290 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ruby-sinatra (PTS) | bullseye | 2.0.8.1-2 | vulnerable |
| bullseye (security) | 2.0.8.1-2+deb11u1 | vulnerable |
| bookworm | 3.0.5-3 | vulnerable |
| trixie | 3.2.0-1 | vulnerable |
| sid | 4.1.1-5 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bookworm] - ruby-sinatra <ignored> (Minor issue, too intrusive to backport)
[bullseye] - ruby-sinatra <ignored> (Minor issue, too intrusive to backport)
https://security.snyk.io/vuln/SNYK-RUBY-SINATRA-6483832
https://github.com/sinatra/sinatra/pull/2053
Rejected upstream fix: https://github.com/sinatra/sinatra/pull/2010
Fixed by: https://github.com/sinatra/sinatra/commit/cd3e00de20ddaff34ea30f7a74a7b9dad189d1d8 (v4.1.0)