Name | CVE-2021-39191 |
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. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DLA-3499-1 |
Debian Bugs | 993648 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
libapache2-mod-auth-openidc (PTS) | jessie, jessie (lts) | 1.6.0-1+deb8u3 | vulnerable |
stretch (security), stretch (lts), stretch | 2.1.6-1+deb9u1 | vulnerable | |
buster | 2.3.10.2-1+deb10u1 | vulnerable | |
buster (security) | 2.3.10.2-1+deb10u4 | fixed | |
bullseye (security), bullseye | 2.4.9.4-0+deb11u3 | fixed | |
bookworm | 2.4.12.3-2 | fixed | |
sid, trixie | 2.4.15.7-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
libapache2-mod-auth-openidc | source | jessie | (unfixed) | end-of-life | ||
libapache2-mod-auth-openidc | source | buster | 2.3.10.2-1+deb10u3 | DLA-3499-1 | ||
libapache2-mod-auth-openidc | source | bullseye | 2.4.9.4-0+deb11u1 | |||
libapache2-mod-auth-openidc | source | (unstable) | 2.4.9.4-1 | 993648 |
[stretch] - libapache2-mod-auth-openidc <no-dsa> (Minor issue)
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-2pgf-8h6h-gqg2
https://github.com/zmartzone/mod_auth_openidc/commit/03e6bfb446f4e3f27c003d30d6a433e5dd8e2b3d
https://github.com/zmartzone/mod_auth_openidc/issues/672