CVE-2024-21510

MEDIUM EPSS 37.6%
Published Nov 1, 20241y ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Nov 1, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
37.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-807

References 4

  • github.com https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb%23L319
  • github.com https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb%23L323C1-L343C17
  • github.com https://github.com/sinatra/sinatra/pull/2010
  • security.snyk.io https://security.snyk.io/vuln/SNYK-RUBY-SINATRA-6483832

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.