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.
History

Fri, 27 Sep 2024 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Goauthentik
Goauthentik authentik
CPEs cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*
Vendors & Products Goauthentik
Goauthentik authentik
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 27 Sep 2024 15:45:00 +0000

Type Values Removed Values Added
Title Password authentication bypass via X-Forwarded-For HTTP header authentik vulnerable to password authentication bypass via X-Forwarded-For HTTP header

Fri, 27 Sep 2024 15:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Password authentication bypass via X-Forwarded-For HTTP header
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-09-27T15:18:03.999Z

Updated: 2024-09-27T17:55:55.382Z

Reserved: 2024-09-17T17:42:37.029Z

Link: CVE-2024-47070

cve-icon Vulnrichment

Updated: 2024-09-27T17:55:51.025Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-09-27T16:15:05.413

Modified: 2024-09-30T12:45:57.823

Link: CVE-2024-47070

cve-icon Redhat

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