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Security Advisories: GSA_kwCzR0hTQS00eHg3LTJjeDMteDQ3M84AA_sj

Keycloak SAML signature validation flaw

A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks.

Permalink: https://github.com/advisories/GHSA-4xx7-2cx3-x473
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00eHg3LTJjeDMteDQ3M84AA_sj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 24 days ago
Updated: 24 days ago


CVSS Score: 7.7
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L

Identifiers: GHSA-4xx7-2cx3-x473, CVE-2024-8698
References: Repository: https://github.com/keycloak/keycloak
Blast Radius: 18.1

Affected Packages

maven:org.keycloak:keycloak-saml-core
Dependent packages: 26
Dependent repositories: 224
Downloads:
Affected Version Ranges: < 25.0.6
Fixed in: 25.0.6
All affected versions: 5.0.0, 6.0.0, 6.0.1, 7.0.0, 7.0.1, 8.0.0, 8.0.1, 8.0.2, 9.0.0, 9.0.2, 9.0.3, 10.0.0, 10.0.1, 10.0.2, 11.0.0, 11.0.1, 11.0.2, 11.0.3, 12.0.0, 12.0.1, 12.0.2, 12.0.3, 12.0.4, 13.0.0, 13.0.1, 14.0.0, 15.0.0, 15.0.1, 15.0.2, 15.1.0, 15.1.1, 16.0.0, 16.1.0, 16.1.1, 17.0.0, 17.0.1, 18.0.0, 18.0.1, 18.0.2, 19.0.0, 19.0.1, 19.0.2, 19.0.3, 20.0.0, 20.0.1, 20.0.2, 20.0.3, 20.0.4, 20.0.5, 21.0.0, 21.0.1, 21.0.2, 21.1.0, 21.1.1, 21.1.2, 22.0.0, 22.0.1, 22.0.2, 22.0.3, 22.0.4, 22.0.5, 23.0.0, 23.0.1, 23.0.2, 23.0.3, 23.0.4, 23.0.5, 23.0.6, 23.0.7, 24.0.0, 24.0.1, 24.0.2, 24.0.3, 24.0.4, 24.0.5, 25.0.0, 25.0.1, 25.0.2, 25.0.3, 25.0.4, 25.0.5
All unaffected versions: 25.0.6, 26.0.0