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-2019-9212 Vulnerability in maven package com.alipay.sofa:hessian

CVE-2015-3250 Vulnerability in maven package org.apache.directory.api:apache-ldap-api

CVE-2023-50775 Vulnerability in maven package org.jenkins-ci.plugins:ec2-deployment-dashboard

CVE-2023-36480 Vulnerability in maven package com.aerospike:aerospike-client

CVE-2023-49383 Vulnerability in maven package com.jfinal:jfinal

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