Security update for apache2-mod_auth_openidc SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:1286-1 Final 1 1 2025-04-15T16:24:51Z current 2025-04-15T16:24:51Z 2025-04-15T16:24:51Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for apache2-mod_auth_openidc This update for apache2-mod_auth_openidc fixes the following issues: - CVE-2025-31492: Fixed a bug where OIDCProviderAuthRequestMethod POSTs can leak protected data. (bsc#1240893) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-1286,SUSE-SLE-Module-Server-Applications-15-SP6-2025-1286,openSUSE-SLE-15.6-2025-1286 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-20251286-1/ Link for SUSE-SU-2025:1286-1 https://lists.suse.com/pipermail/sle-updates/2025-April/039009.html E-Mail link for SUSE-SU-2025:1286-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1240893 SUSE Bug 1240893 https://www.suse.com/security/cve/CVE-2025-31492/ SUSE CVE CVE-2025-31492 page SUSE Linux Enterprise Module for Server Applications 15 SP6 openSUSE Leap 15.6 apache2-mod_auth_openidc-2.3.8-150600.16.8.1 apache2-mod_auth_openidc-2.3.8-150600.16.8.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 apache2-mod_auth_openidc-2.3.8-150600.16.8.1 as a component of openSUSE Leap 15.6 mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.16.11, a bug in a mod_auth_openidc results in disclosure of protected content to unauthenticated users. The conditions for disclosure are an OIDCProviderAuthRequestMethod POST, a valid account, and there mustn't be any application-level gateway (or load balancer etc) protecting the server. When you request a protected resource, the response includes the HTTP status, the HTTP headers, the intended response (the self-submitting form), and the protected resource (with no headers). This is an example of a request for a protected resource, including all the data returned. In the case where mod_auth_openidc returns a form, it has to return OK from check_userid so as not to go down the error path in httpd. This means httpd will try to issue the protected resource. oidc_content_handler is called early, which has the opportunity to prevent the normal output being issued by httpd. oidc_content_handler has a number of checks for when it intervenes, but it doesn't check for this case, so the handler returns DECLINED. Consequently, httpd appends the protected content to the response. The issue has been patched in mod_auth_openidc versions >= 2.4.16.11. CVE-2025-31492 SUSE Linux Enterprise Module for Server Applications 15 SP6:apache2-mod_auth_openidc-2.3.8-150600.16.8.1 openSUSE Leap 15.6:apache2-mod_auth_openidc-2.3.8-150600.16.8.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-20251286-1/ https://www.suse.com/security/cve/CVE-2025-31492.html CVE-2025-31492 https://bugzilla.suse.com/1240893 SUSE Bug 1240893