CVE-2022-23527
4.7 · MEDIUMOverview
CVE-2022-23527 is a medium-severity vulnerability affecting openidc mod_auth_openidc. It was published on December 14, 2022 and has a CVSS 3.1 base score of 4.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from openidc. Update mod_auth_openidc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| openidc | mod_auth_openidc | >= 0, < 2.4.12.2 | Affected |
References
Frequently Asked Questions
What is CVE-2022-23527?
CVE-2022-23527 is a medium-severity vulnerability affecting openidc mod_auth_openidc. It was published on December 14, 2022 and has a CVSS 3.1 base score of 4.7 (MEDIUM).
How severe is CVE-2022-23527?
This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-23527?
Check the references section for vendor advisories and patches from openidc. Update mod_auth_openidc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-23527?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-23527 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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