CVE-2021-32792: XSS vulnerability when using OIDCPreservePost On in mod_auth_openidc
First published: Mon Jul 26 2021(Updated: )
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 mod_auth_openidc before version 2.4.9, there is an XSS vulnerability in when using `OIDCPreservePost On`.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openidc Mod Auth Openidc | <2.4.9 | |
| Apache HTTP server | >=2.0.0<=2.4.48 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- https://github.com/zmartzone/mod_auth_openidc/commit/00c315cb0c8ab77c67be4a2ac08a71a83ac58751
- https://github.com/zmartzone/mod_auth_openidc/commit/55ea0a085290cd2c8cdfdd960a230cbc38ba8b56
- https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9
- https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-458c-7pwg-3j7j
- https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
Frequently Asked Questions
What is CVE-2021-32792?
CVE-2021-32792 is an XSS vulnerability in mod_auth_openidc before version 2.4.9.
What is mod_auth_openidc?
mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party.
How does mod_auth_openidc work?
mod_auth_openidc authenticates users against an OpenID Connect Provider.
What is the severity of CVE-2021-32792?
The severity of CVE-2021-32792 is medium (6.1).
How can I fix CVE-2021-32792?
To fix CVE-2021-32792, you should upgrade to mod_auth_openidc version 2.4.9.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/references
- agent/title
- agent/last-modified-date
- agent/weakness
- agent/severity
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- vendor/openidc
- canonical/openidc mod auth openidc
- vendor/apache
- canonical/apache http server
- version/apache http server/2.0.0
- version/apache http server/2.4.48
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34