csaf_redhat - rhsa-2025:7490

rhsa-2025:7490

Vulnerability from csaf_redhat

Published

2025-05-13 16:02

Modified

2025-08-06 05:23

Summary

Red Hat Security Advisory: mod_auth_openidc security update

Notes

Topic

An update for mod_auth_openidc is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. Security Fix(es): * mod_auth_openidc: mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data (CVE-2025-31492) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

JSON

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  "vulnerabilities": [
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      "cwe": {
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        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
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      "discovery_date": "2025-04-06T21:00:44.939285+00:00",
      "ids": [
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          "text": "2357738"
        }
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          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "mod_auth_openidc: mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "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.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-31492"
        },
        {
          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2357738"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-31492",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-31492"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-31492",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31492"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenIDC/mod_auth_openidc/commit/b59b8ad63411857090ba1088e23fe414c690c127",
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      "release_date": "2025-04-06T20:02:20.511000+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2025-05-13T16:02:37+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2025:7490"
        },
        {
          "category": "workaround",
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "mod_auth_openidc: mod_auth_openidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data"
    }
  ]
}

CVE-2025-31492 (GCVE-0-2025-31492)

Vulnerability from cvelistv5

Published

2025-04-06 20:02

Modified

2025-04-17 11:02

Severity ?

8.2 (High) - 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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Summary

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.

References

►

URL

	Vendor	Product	Version
	OpenIDC	mod_auth_openidc	Version: < 2.4.16.11

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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