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CVE-2024-21510

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Date: November 1, 2024

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.

Language: Ruby

Severity Score

Related Resources (10)

https://github.com/sinatra/sinatra
https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb#L319
https://github.com/advisories/GHSA-hxx2-7vcw-mqr3
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/sinatra/CVE-2024-21510.yml
https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb%23L319
https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb%23L323C1-L343C17
https://github.com/sinatra/sinatra/pull/2010
https://github.com/sinatra/sinatra/blob/b626e2d82c23b4fde0b51782fd32ca27ccde1d1a/lib/sinatra/base.rb#L323C1-L343C17
https://nvd.nist.gov/vuln/detail/CVE-2024-21510
https://www.mend.io/vulnerability-database/CVE-2024-21510

Severity Score

Weakness Type (CWE)

Reliance on Untrusted Inputs in a Security Decision

CWE-807

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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