Improper Authentication in MKSamlAuth extension for TYPO3



Published: 2019-12-18
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
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MKSamlAuth
Web applications / Modules and components for CMS

Vendor DMK E-BUSINESS GmbH

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU23664

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MKSamlAuth: 8.7.0 - 9.5.2


CPE2.3 External links

http://typo3.org/security/advisory/typo3-ext-sa-2019-019/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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