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TI-2017-04220 Aliases CVE-2017-6413GHSA-9r74-cmm5-qv85

The "OpenID Connect Relying Party and OAuth 2.0 Resource Server" (aka mod_auth_openidc)…

Priority MEDIUM 44CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

The "OpenID Connect Relying Party and OAuth 2.0 Resource Server" (aka mod_auth_openidc) module before 2.1.6 for the Apache HTTP Server does not skip OIDC_CLAIM_ and OIDCAuthNHeader headers in an "AuthType oauth20" configuration, which allows remote attackers to bypass authentication via crafted HTTP traffic.

Why it matters now

EPSS 0.04253 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:*up to 2.1.5VulnerableOpenIDC
  • cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:* Versions up to 2.1.5 Vulnerable ·OpenIDC

Remediation

Red Hat 1 advisory

  • RHSA-2019:2112 Released 2019-08-06 · Red Hat rating Moderate
    mod_auth_openidc security update
    • Red Hat Enterprise Linux Server (v. 7) mod_auth_openidc-1.8.8-5.el7
    • Red Hat Enterprise Linux Workstation (v. 7) mod_auth_openidc-1.8.8-5.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2112
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2112
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-6413
  2. 2026-10-03 Alias added: GHSA-9r74-cmm5-qv85

References

Patch 3

Advisory 4

  • TI-2024-16331 Denial of service when manipulating mod_auth_openidc_session_chunks cookie in mod_auth_openidc CVSS 3.1HIGH 7.5
  • TI-2017-03971 The "OpenID Connect Relying Party and OAuth 2.0 Resource Server" (aka mod_auth_openidc)… CVSS 3.0HIGH 8.6
  • TI-2023-13144 mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied CVSS 3.1HIGH 7.5
  • TI-2017-03968 Mod_auth_openidc.c in the Ping Identity OpenID Connect authentication module for Apache… CVSS 3.1HIGH 7.5
  • TI-2021-03944 Uncontrolled resource consumption in OpenIDC mod_auth_openidc CVSS 3.1HIGH 7.5
  • TI-2021-12451 Format string bug in the Redis cache implementation CVSS 3.1HIGH 7.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences