CVE-2025-31492

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{"affected": [{"affectedData": [{"product": "mod_auth_openidc", "vendor": "OpenIDC", "versions": [{"status": "affected", "version": "< 2.4.16.11"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "mod_auth_openidc es un m\u00f3dulo de autenticaci\u00f3n y autorizaci\u00f3n con certificaci\u00f3n OpenID para el servidor HTTP Apache 2.x que implementa la funcionalidad de usuario autenticado de OpenID Connect. Antes de la versi\u00f3n 2.4.16.11, un error en mod_auth_openidc provocaba la divulgaci\u00f3n de contenido protegido a usuarios no autenticados. Las condiciones para la divulgaci\u00f3n son un POST OIDCProviderAuthRequestMethod, una cuenta v\u00e1lida y que no haya ninguna puerta de enlace a nivel de aplicaci\u00f3n (ni balanceador de carga, etc.) protegiendo el servidor. Al solicitar un recurso protegido, la respuesta incluye el estado HTTP, los encabezados HTTP, la respuesta prevista (el formulario de autoenv\u00edo) y el recurso protegido (sin encabezados). Este es un ejemplo de una solicitud de un recurso protegido, incluyendo todos los datos devueltos. Si mod_auth_openidc devuelve un formulario, debe devolver \"OK\" de check_userid para evitar el error en httpd. Esto significa que httpd intentar\u00e1 emitir el recurso protegido. oidc_content_handler se llama antes, lo que puede impedir que httpd emita la salida normal. oidc_content_handler realiza varias comprobaciones cuando interviene, pero no verifica este caso, por lo que el controlador devuelve DECLINED. En consecuencia, httpd a\u00f1ade el contenido protegido a la respuesta. El problema se ha corregido en las versiones de mod_auth_openidc posteriores a la 2.4.16.11."}], "id": "CVE-2025-31492", "lastModified": "2026-06-17T09:10:29.800", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-31492", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-07T14:13:25.331976Z", "version": "2.0.3"}}]}, "published": "2025-04-06T20:15:15.063", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OpenIDC/mod_auth_openidc/commit/b59b8ad63411857090ba1088e23fe414c690c127"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-59jp-rwph-878r"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00025.html"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:7490", "cpe": "cpe:/o:redhat:enterprise_linux:10.0", "package": "mod_auth_openidc-0:2.4.15-4.el10_0.1", "product_name": "Red Hat Enterprise Linux 10", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:3997", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "mod_auth_openidc:2.3-8100020250411144918.489197e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-04-23T00:00:00Z"}, {"advisory": "RHSA-2025:4228", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "mod_auth_openidc:2.3-8020020250422085336.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-04-28T00:00:00Z"}, {"advisory": "RHSA-2025:4227", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "mod_auth_openidc:2.3-8040020250422161642.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-04-28T00:00:00Z"}, {"advisory": "RHSA-2025:4227", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "mod_auth_openidc:2.3-8040020250422161642.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2025-04-28T00:00:00Z"}, {"advisory": "RHSA-2025:4227", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "mod_auth_openidc:2.3-8040020250422161642.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2025-04-28T00:00:00Z"}, {"advisory": "RHSA-2025:4192", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "mod_auth_openidc:2.3-8060020250422111826.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-04-24T00:00:00Z"}, {"advisory": "RHSA-2025:4192", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "mod_auth_openidc:2.3-8060020250422111826.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-04-24T00:00:00Z"}, {"advisory": "RHSA-2025:4192", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "mod_auth_openidc:2.3-8060020250422111826.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-04-24T00:00:00Z"}, {"advisory": "RHSA-2025:4128", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "mod_auth_openidc:2.3-8080020250415192452.63b34585", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2025-04-23T00:00:00Z"}, {"advisory": "RHSA-2025:7419", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "mod_auth_openidc-0:2.4.10-1.el9_6.1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:3945", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "mod_auth_openidc-0:2.4.9.4-1.el9_0.2", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-04-16T00:00:00Z"}, {"advisory": "RHSA-2025:4225", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "mod_auth_openidc-0:2.4.9.4-1.el9_2.2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2025-04-28T00:00:00Z"}, {"advisory": "RHSA-2025:4224", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "mod_auth_openidc-0:2.4.9.4-4.el9_4.1", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-04-28T00:00:00Z"}], "bugzilla": {"description": "mod_auth_openidc: mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data", "id": "2357738", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2357738"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-200", "details": ["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.", "A flaw was found in mod_auth_openidc, an OpenID Connect authentication module for Apache HTTP Server. This vulnerability allows unauthenticated users to access protected content via crafted HTTP POST requests to protected resources when no application-level gateway is present."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2025-31492", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "mod_auth_openidc", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2025-04-06T20:02:20Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-31492\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-31492\nhttps://github.com/OpenIDC/mod_auth_openidc/commit/b59b8ad63411857090ba1088e23fe414c690c127\nhttps://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-59jp-rwph-878r"], "statement": "This vulnerability marked as important severity rather than moderate due to its direct breach of access control, one of the core pillars of web application security. The flaw allows unauthenticated users to access sensitive protected content simply by triggering a specific OpenID Connect flow, bypassing the intended authentication checks. This is not merely a misconfiguration or theoretical risk \u2014 it results from a flawed control path in mod_auth_openidc where the module returns OK for unauthenticated requests, and httpd proceeds to serve protected content. The vulnerability affects environments without strict external request validation (e.g., no reverse proxy or WAF), making it highly impactful in real-world deployments.", "threat_severity": "Important"}

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