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-2023-32695 Vulnerability in npm package socket.io-parser

CVE-2023-45669 Vulnerability in maven package com.webauthn4j:webauthn4j-spring-security-core

CVE-2023-25762 Vulnerability in maven package org.jenkins-ci.plugins:pipeline-build-step

CVE-2020-10758 Vulnerability in maven package org.keycloak:keycloak-wildfly-server-subsystem

CVE-2017-16014 Vulnerability in npm package http-proxy

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