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CVE-2024-52289

Goauthentik Authentik vulnerability

9.8 CRITICALEPSS 1.09%
  1. Published21 Nov 2024

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 `\.`.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Goauthentik Authentik≥ 2024.10.0 < 2024.10.3 · < 2024.8.5

Remediation

Fixed in
Goauthentik Authentik≥ 2024.10.3

References

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Frequently asked

Is CVE-2024-52289 being actively exploited?

CVE-2024-52289 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.09%.

How severe is CVE-2024-52289?

CVE-2024-52289 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.09% probability of exploitation.

Which products are affected by CVE-2024-52289?

Affected products include Goauthentik Authentik.

How do I fix CVE-2024-52289?

Upgrade affected software to a fixed version, for example Goauthentik Authentik 2024.10.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.