GHSA-m7gv-v8xx-v47w
XWiki OIDC Authenticator vulnerable to bypassing OpenID login by providing a custom provider
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.xwiki.contrib.oidc:oidc-authenticator | < 1.29.1 | 1.29.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Even if a wiki has an OpenID provider configured through its xwiki.properties, it is possible to provide a third party provider by providing 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
### Patches
Patched in version 1.29.1.
### Workarounds
There is no workaround, an upgrade of the authenticator is required.
### References
https://jira.xwiki.org/browse/OIDC-118
### For more information
If you have any questions or comments about this advisory:
* Open an issue in Jira XWiki
* Email us at our security mailing list
References
External links from the advisory. They lead to third-party sites.