CVE-2022-39387: XWiki OIDC Authenticator vulnerable to OpenID login bypass due to improper authentication
XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Prior to version 1.29.1, even if a wiki has an OpenID provider configured through its xwiki.properties, it is possible to provide a third party provider its details through request parameters. One can then bypass the XWiki authentication altogether by specifying its own provider through the oidc.endpoint. request parameters (or by using an XWiki-based OpenID provider with oidc.xwikiprovider. With the same approach, one could also provide a specific group mapping through oidc.groups.mapping that would make his user automatically part of the XWikiAdminGroup. This issue has been patched, please upgrade to 1.29.1. There is no workaround, an upgrade of the authenticator is required.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2022-39387?
CVE-2022-39387 is classified as a moderate severity vulnerability.
How do I fix CVE-2022-39387?
To fix CVE-2022-39387, you should upgrade to XWiki OpenID Connect version 1.29.1 or later.
What does CVE-2022-39387 affect?
CVE-2022-39387 affects XWiki OpenID Connect versions prior to 1.29.1.
What vulnerability does CVE-2022-39387 exploit?
CVE-2022-39387 exploits the ability to manipulate OpenID provider details through request parameters.
Is CVE-2022-39387 related to OpenID Connect?
Yes, CVE-2022-39387 specifically pertains to vulnerabilities within the OpenID Connect protocol implementation in XWiki.