CVE Vulnerability

CVE-2022-23527

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.

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-q6f2-285m-gr53 Third Party Advisory
https://github.com/zmartzone/mod_auth_openidc/blob/v2.4.12.1/auth_openidc.conf#L975-L984 Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:zmartzone:mod_auth_openidc:*:*:*:*:*:*:*:*
Information

Published : 2022-12-14 06:15

Updated : 2022-12-16 08:50

NVD link : CVE-2022-23527

Mitre link : CVE-2022-23527

Products Affected
No products.
CWE
CWE-601

URL Redirection to Untrusted Site ('Open Redirect')