Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1tN2d2LXY4eHgtdjQ3d84AAvtQ

XWiki OIDC Authenticator vulnerable to bypassing OpenID login by providing a custom provider

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

Permalink: https://github.com/advisories/GHSA-m7gv-v8xx-v47w
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1tN2d2LXY4eHgtdjQ3d84AAvtQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: 11 months ago
Updated: 8 months ago

CVSS Score: 9.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Identifiers: GHSA-m7gv-v8xx-v47w, CVE-2022-39387
References:

• https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-m7gv-v8xx-v47w
• https://github.com/xwiki-contrib/oidc/commit/0247af1417925b9734ab106ad7cd934ee870ac89
• https://jira.xwiki.org/browse/OIDC-118
• https://nvd.nist.gov/vuln/detail/CVE-2022-39387
• https://github.com/advisories/GHSA-m7gv-v8xx-v47w

Affected Packages