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-2023-24815 Vulnerability in maven package io.vertx:vertx-web

CVE-2022-46366 Vulnerability in maven package tapestry:tapestry

CVE-2023-35155 Vulnerability in maven package org.xwiki.platform:xwiki-platform-sharepage-api

CVE-2021-37533 Vulnerability in maven package commons-net:commons-net

CVE-2017-2670 Vulnerability in maven package io.undertow:undertow-core

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