CVE-2021-39191

mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9.4, the 3rd-party init SSO functionality of mod_auth_openidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the `target_link_uri` parameter. A patch in version 2.4.9.4 made it so that the `OIDCRedirectURLsAllowed` setting must be applied to the `target_link_uri` parameter. There are no known workarounds aside from upgrading to a patched version.

Link	Resource
https://github.com/zmartzone/mod_auth_openidc/issues/672	Exploit Third Party Advisory
https://github.com/zmartzone/mod_auth_openidc/commit/03e6bfb446f4e3f27c003d30d6a433e5dd8e2b3d	Patch Third Party Advisory
https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9.4	Release Notes Third Party Advisory
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-2pgf-8h6h-gqg2	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32RGPW5LZDLDTB7MKZIGAHPSLFOUNWR5/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RHXO4O4G2UQS7X6OQJCVZKHZAQ7SAIFB/	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:a:zmartzone:mod_auth_openidc:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

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Published : 2021-09-03 02:15

Updated : 2022-09-10 02:46

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NVD link : CVE-2021-39191

Mitre link : CVE-2021-39191

No products.

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')