Description
mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.
Published: 2022-12-14
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3499-1 libapache2-mod-auth-openidc security update
EUVD EUVD EUVD-2022-28556 mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.
History

Fri, 18 Apr 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 13 Feb 2025 16:45:00 +0000

Type Values Removed Values Added
Title Open Redirect in oidc_validate_redirect_url() Open Redirect in oidc_validate_redirect_url()

Subscriptions

Debian Debian Linux
Openidc Mod Auth Openidc
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-18T14:23:56.649Z

Reserved: 2022-01-19T21:23:53.784Z

Link: CVE-2022-23527

cve-icon Vulnrichment

Updated: 2024-08-03T03:43:46.551Z

cve-icon NVD

Status : Modified

Published: 2022-12-14T18:15:20.850

Modified: 2024-11-21T06:48:45.187

Link: CVE-2022-23527

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-12-14T00:00:00Z

Links: CVE-2022-23527 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses