Reliance on Untrusted Inputs in a Security Decision Affecting sinatra package, versions >=1.2.0.c, <4.1.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUBY-SINATRA-6483832
- published31 Oct 2024
- disclosed26 Mar 2024
- creditt0rchwo0d
Introduced: 26 Mar 2024
CVE-2024-21510 (opens in a new tab)How to fix?
Upgrade sinatra to version 4.1.0 or higher.
Overview
Affected versions of this package 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.