authentik is an open-source identity provider. Redirect URIs in the OAuth2 provider in authentik are checked by RegEx comparison. When no Redirect URIs are configured in a provider, authentik will automatically use the first redirect_uri value received as an allowed redirect URI, without escaping characters that have a special meaning in RegEx. Similarly, the documentation did not take this into consideration either. Given a provider with the Redirect URIs set to https://foo.example.com, an attacker can register a domain fooaexample.com, and it will correctly pass validation. authentik 2024.8.5 and 2024.10.3 fix this issue. As a workaround, When configuring OAuth2 providers, make sure to escape any wildcard characters that are not intended to function as a wildcard, for example replace `.` with `\.`.
History

Thu, 21 Nov 2024 21:15:00 +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': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 21 Nov 2024 17:30:00 +0000

Type Values Removed Values Added
Description authentik is an open-source identity provider. Redirect URIs in the OAuth2 provider in authentik are checked by RegEx comparison. When no Redirect URIs are configured in a provider, authentik will automatically use the first redirect_uri value received as an allowed redirect URI, without escaping characters that have a special meaning in RegEx. Similarly, the documentation did not take this into consideration either. Given a provider with the Redirect URIs set to https://foo.example.com, an attacker can register a domain fooaexample.com, and it will correctly pass validation. authentik 2024.8.5 and 2024.10.3 fix this issue. As a workaround, When configuring OAuth2 providers, make sure to escape any wildcard characters that are not intended to function as a wildcard, for example replace `.` with `\.`.
Title authentik has an insecure default configuration for OAuth2 Redirect URIs
Weaknesses CWE-185
References
Metrics cvssV4_0

{'score': 7.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-11-21T17:18:41.161Z

Updated: 2024-11-21T20:50:00.471Z

Reserved: 2024-11-06T19:00:26.394Z

Link: CVE-2024-52289

cve-icon Vulnrichment

Updated: 2024-11-21T20:49:52.267Z

cve-icon NVD

Status : Received

Published: 2024-11-21T18:15:12.060

Modified: 2024-11-21T18:15:12.060

Link: CVE-2024-52289

cve-icon Redhat

No data.