CVE-2024-45409

Publication date 10 September 2024

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby-saml	24.10 oracular	Fixed 1.15.0-1ubuntu0.24.10.1
	24.04 LTS noble	Fixed 1.15.0-1ubuntu0.24.04.1
	22.04 LTS jammy	Fixed 1.13.0-1ubuntu0.1
	20.04 LTS focal	Fixed 1.11.0-1ubuntu0.1
	18.04 LTS bionic	Fixed 1.7.2-1ubuntu0.1~esm1
	16.04 LTS xenial	Fixed 1.1.2-1ubuntu1+esm1

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby-saml	Upstream: 4865d03 Upstream: 1ec5392

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-7309-1
Ruby SAML vulnerabilities
28 February 2025