goauthentik up to 2024.6.4/2024.8.2 Header X-Forwarded-For improper authentication

Summaryinfo

A vulnerability was found in goauthentik authentik up to 2024.6.4/2024.8.2. It has been rated as critical. This affects an unknown part of the component Header Handler. Performing a manipulation of the argument X-Forwarded-For results in improper authentication. This vulnerability is known as CVE-2024-47070. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in goauthentik authentik up to 2024.6.4/2024.8.2. This affects an unknown function of the component Header Handler. The manipulation of the argument X-Forwarded-For with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

authentik is an open-source identity provider. A vulnerability that exists in versions prior to 2024.8.3 and 2024.6.5 allows bypassing password login by adding X-Forwarded-For header with an unparsable IP address, e.g. `a`. This results in a possibility of logging into any account with a known login or email address. The vulnerability requires the authentik instance to trust X-Forwarded-For header provided by the attacker, thus it is not reproducible from external hosts on a properly configured environment. The issue occurs due to the password stage having a policy bound to it, which skips the password stage if the Identification stage is setup to also contain a password stage. Due to the invalid X-Forwarded-For header, which does not get validated to be an IP Address early enough, the exception happens later and the policy fails. The default blueprint doesn't correctly set `failure_result` to `True` on the policy binding meaning that due to this exception the policy returns false and the password stage is skipped. Versions 2024.8.3 and 2024.6.5 fix this issue.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2024-47070 since 09/17/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2024.6.5 or 2024.8.3 eliminates this vulnerability.

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Productinfo

Vendor

• goauthentik

Name

• authentik

Version

• 2024.6.0
• 2024.6.1
• 2024.6.2
• 2024.6.3
• 2024.6.4
• 2024.8.0
• 2024.8.1
• 2024.8.2

Website

• Product: https://github.com/goauthentik/authentik/

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