Upstream information

CVE-2025-31492 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Analysis

This issue is currently rated as having important severity.

CVSS v3 Scores
  SUSE
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
  CNA (GitHub) SUSE
Base Score 8.2 8.2
Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Network Network
Attack Complexity Low Low
Attack Requirements Present Present
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact High High
Vulnerable System Integrity Impact None None
Vulnerable System Availability Impact None None
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entry: 1240893 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-Storage-7.1-2025-1324
SUSE Liberty Linux 8
  • cjose >= 0.6.1-4.module+el8.10.0+21813+b5444eb8
  • cjose-devel >= 0.6.1-4.module+el8.10.0+21813+b5444eb8
  • mod_auth_openidc >= 2.4.9.4-7.module+el8.10.0+23023+ba6d7066
Patchnames:
RHSA-2025:3997
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-1324
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1324
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1324
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1324
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1324
SUSE Linux Enterprise High Performance Computing 15 SP6
SUSE Linux Enterprise Module for Server Applications 15 SP6
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • apache2-mod_auth_openidc >= 2.3.8-150600.16.8.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP6-2025-1286
SUSE Linux Enterprise Server 12 SP5-LTSS
  • apache2-mod_auth_openidc >= 2.4.0-7.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-2025-1337
SUSE-SLE-SERVER-12-SP5-LTSS-2025-1465
SUSE Linux Enterprise Server 15 SP3-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-1324
SUSE Linux Enterprise Server 15 SP4-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1324
SUSE Linux Enterprise Server 15 SP5-LTSS
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1324
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • apache2-mod_auth_openidc >= 2.4.0-7.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-1337
SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-1465
SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP3-2025-1324
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1324
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1324
SUSE Manager Proxy 4.3
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1324
SUSE Manager Retail Branch Server 4.3
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-2025-1324
SUSE Manager Server 4.3
  • apache2-mod_auth_openidc >= 2.3.8-150100.3.31.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1324
openSUSE Leap 15.6
  • apache2-mod_auth_openidc >= 2.3.8-150600.16.8.1
Patchnames:
openSUSE-SLE-15.6-2025-1286
openSUSE Tumbleweed
  • apache2-mod_auth_openidc >= 2.4.16.11-1.1
Patchnames:
openSUSE-Tumbleweed-2025-14972


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP6 apache2-mod_auth_openidc Released
SUSE Linux Enterprise High Performance Computing 15 SP7 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Module for Server Applications 15 SP6 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Module for Server Applications 15 SP7 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP6 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server 15 SP7 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP6 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server for SAP Applications 15 SP7 apache2-mod_auth_openidc Analysis
SUSE Manager Proxy 4.3 apache2-mod_auth_openidc Released
SUSE Manager Retail Branch Server 4.3 apache2-mod_auth_openidc Released
SUSE Manager Server 4.3 apache2-mod_auth_openidc Released
openSUSE Leap 15.6 apache2-mod_auth_openidc Analysis
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise High Performance Computing 15 SP4 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise High Performance Computing 15 SP5 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS apache2-mod_auth_openidc Released
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Module for Server Applications 15 SP3 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Module for Server Applications 15 SP4 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Module for Server Applications 15 SP5 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 12 SP5 apache2-mod_auth_openidc Affected
SUSE Linux Enterprise Server 12 SP5-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server 15 SP3 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP3-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server 15 SP4 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP4-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server 15 SP5 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP5-LTSS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 apache2-mod_auth_openidc Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 apache2-mod_auth_openidc Released
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.0 apache2-mod_auth_openidc Analysis
SUSE Enterprise Storage 6 apache2-mod_auth_openidc Analysis
SUSE Enterprise Storage 7 apache2-mod_auth_openidc Analysis
SUSE Enterprise Storage 7.1 apache2-mod_auth_openidc Released
SUSE Linux Enterprise High Performance Computing 15 SP1 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS apache2-mod_auth_openidc Released
SUSE Linux Enterprise Module for Server Applications 15 SP1 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Module for Server Applications 15 SP2 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Real Time 15 SP2 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Real Time 15 SP3 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Real Time 15 SP4 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 12 SP4-ESPOS apache2-mod_auth_openidc Affected
SUSE Linux Enterprise Server 12 SP4-LTSS apache2-mod_auth_openidc Affected
SUSE Linux Enterprise Server 15 SP1 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP1-BCL apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP1-LTSS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP2 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP2-BCL apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP2-LTSS apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server 15 SP3-BCL apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 apache2-mod_auth_openidc Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 apache2-mod_auth_openidc Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP2 apache2-mod_auth_openidc Analysis
SUSE Manager Proxy 4.0 apache2-mod_auth_openidc Analysis
SUSE Manager Proxy 4.1 apache2-mod_auth_openidc Analysis
SUSE Manager Proxy 4.2 apache2-mod_auth_openidc Analysis
SUSE Manager Retail Branch Server 4.0 apache2-mod_auth_openidc Analysis
SUSE Manager Retail Branch Server 4.1 apache2-mod_auth_openidc Analysis
SUSE Manager Retail Branch Server 4.2 apache2-mod_auth_openidc Analysis
SUSE Manager Server 4.0 apache2-mod_auth_openidc Analysis
SUSE Manager Server 4.1 apache2-mod_auth_openidc Analysis
SUSE Manager Server 4.2 apache2-mod_auth_openidc Analysis
SUSE OpenStack Cloud 9 apache2-mod_auth_openidc Affected
SUSE OpenStack Cloud Crowbar 9 apache2-mod_auth_openidc Affected
openSUSE Leap 15.3 apache2-mod_auth_openidc Analysis
openSUSE Leap 15.4 apache2-mod_auth_openidc Analysis
openSUSE Leap 15.5 apache2-mod_auth_openidc Analysis


SUSE Timeline for this CVE

CVE page created: Mon Apr 7 02:00:03 2025
CVE page last modified: Wed May 7 18:15:14 2025