Description
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.
Published: 2019-08-14
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2019-0650 It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.
Github GHSA Github GHSA GHSA-4fgq-gq9g-3rw7 Improper Verification of Cryptographic Signature in keycloak
History

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Subscriptions

Redhat Jboss Single Sign On Keycloak Openshift Application Runtimes Single Sign-on
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T22:17:19.324Z

Reserved: 2019-03-27T00:00:00.000Z

Link: CVE-2019-10201

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-08-14T17:15:11.143

Modified: 2024-11-21T04:18:38.627

Link: CVE-2019-10201

cve-icon Redhat

Severity : Important

Publid Date: 2019-08-13T00:00:00Z

Links: CVE-2019-10201 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses