Improper Authentication in Keycloak - CVE-2018-14637

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Main Vulnerability Database Vulnerabilities #VU36351

Improper Authentication in Keycloak - CVE-2018-14637

Published: November 30, 2018 / Updated: August 8, 2020


Vulnerability identifier: #VU36351
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-14637
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Keycloak
Affected software:
Keycloak

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The SAML broker consumer endpoint in Keycloak before version 4.6.0.Final ignores expiration conditions on SAML assertions. An attacker can exploit this vulnerability to perform a replay attack.


How to mitigate CVE-2018-14637

Install update from vendor's website.

Sources