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CVE detail

CVE-2024-45409

The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.

CVSS 10.0 · CriticalBuzz score 27.6

Buzz score

Why this CVE is surfacing

Buzz score total 27.6

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
16.1
4 evidence mentions in the snapshot
Diversity score
11.5
3 sources across 2 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
4 source links · newest first
  • Critical authentication bypass vulnerabilities (CVE-2025-25291 + CVE-2025-25292) were discovered in ruby-saml up to version 1.17.0. In this blog post, we’ll shed light on how these vulnerabilities that rely on a parser differential were uncovered.

    vendorgithub.blogMar 12, 2025, 9:07 PM
  • Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Microsoft patches two zero-days exploited in the wild (CVE-2024-43573, CVE-2024-43572) For October 2024 Patch Tuesday, Microsoft has released fixes for 117 security vulnerabilities, including two under active exploitation: CVE-2024-43573, a spoofing bug affecting the Windows MSHTML Platform, and CVE-2024-43572, a remote code execution flaw in the Microsoft Management Console (MMC). SOC teams are frustrated with their security tools Security operations … More →

    newswww.helpnetsecurity.comOct 13, 2024, 8:00 AM
  • If you run a self-managed GitLab installation with configured SAML-based authentication and you haven’t upgraded it since mid-September, do it now, because security researchers have published an analysis of CVE-2024-45409 and an exploit script that may help attackers gain access as any user on GitLab. About CVE-2024-45409 GitLab is a popular software development platform that can be deployed by users on on-premises servers, Kubernetes, or with a cloud provider. CVE-2024-45409 is a critical authentication bypass … More →

    newswww.helpnetsecurity.comOct 9, 2024, 12:32 PM
  • GitLab has patched a critical-severity SAML authentication bypass affecting both Community Edition (CE) and Enterprise Edition (EE) instances.

    newswww.securityweek.comSep 19, 2024, 9:15 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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