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 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.

Remediation

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201

Related Vulnerabilities

CVE-2020-36649 Vulnerability in maven package org.webjars.npm:papaparse

CVE-2018-10912 Vulnerability in maven package org.keycloak:keycloak-model-infinispan

CVE-2012-3451 Vulnerability in maven package org.apache.cxf:cxf-bundle

CVE-2016-0706 Vulnerability in maven package org.apache.tomcat.embed:tomcat-embed-core

CVE-2019-1003053 Vulnerability in maven package org.jenkins-ci.plugins:hockeyapp

Severity

Critical

Classification

CWE-347 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Tags

Issue Tracking Mitigation Vendor Advisory