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-2017-1000491 Vulnerability in npm package shiba

CVE-2022-25209 Vulnerability in maven package org.jenkins-ci.plugins:sinatra-chef-builder

CVE-2022-0341 Vulnerability in npm package vditor

CVE-2019-10157 Vulnerability in npm package keycloak-connect

CVE-2023-25570 Vulnerability in maven package com.ctrip.framework.apollo:apollo

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