#VU23664 Improper Authentication in MKSamlAuth
Published: December 18, 2019
Vulnerability identifier: #VU23664
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
MKSamlAuth
MKSamlAuth
Software vendor:
DMK E-BUSINESS GmbH
DMK E-BUSINESS GmbH
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the affected extension fails to validate the response from the Identity Provider. A remote attacker can bypass authentication process and create various frontend users on affected TYPO3 websites.
Note: The authentication service allows to bypass frontend user authentication by providing a valid username with an empty password, if a SAML configuration is not created for the current website domain.
Remediation
Install updates from vendor's website.