CVE-2022-23527
Description
mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.
How to fix
- openidc mod_auth_openidc2.4.12.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openidc mod_auth_openidc | v < 2.4.12.2 | 2.4.12.2 |
| debian debian_linux | 10.0 | — |
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