Description

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.

Related CPE's

a

openidc

mod_auth_openidc

Vulnerable

o

fedoraproject

fedora

2

o

debian

debian_linux

10.0

Vulnerable

References

https://github.com/zmartzone/mod_auth_openidc/commit/03e6bfb446f4e3f27c003d30d6a433e5dd8e2b3d

PatchThird Party Advisory

https://github.com/zmartzone/mod_auth_openidc/issues/672

Exploit

https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9.4

Release Notes

https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-2pgf-8h6h-gqg2

Vendor Advisory

https://lists.debian.org/debian-lts-announce/2023/07/msg00020.html

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/32RGPW5LZDLDTB7MKZIGAHPSLFOUNWR5/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHXO4O4G2UQS7X6OQJCVZKHZAQ7SAIFB/

Weaknesses

[email protected]

Primary
CWE-601

[email protected]

Secondary
CWE-601

CVSS impact metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

6.1 · Medium

  • CVSS V3.1

  • CVSS V3.0

  • CVSS V2.0

Information

Source identifier

[email protected]

Vulnerability status

Modified

Published

2021-09-03T14:15:07.210

3 years ago

Last modified

2023-11-07T03:37:35.610

1 year ago