Tracker / CVE-2021-22696
CVE-2021-22696
CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the "request_uri" parameter. CXF was not validating the "request_uri" parameter (apart from ensuring it uses "https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.
Affected products and versions
| apache | cxf · … → 3.3.10 |
|---|---|
| apache | cxf · 3.4.0 → 3.4.3 |
| oracle | business_intelligence |
| oracle | communications_diameter_intelligence_hub · 8.0.0 → 8.1.0 |
| oracle | communications_diameter_intelligence_hub · 8.2.0 → 8.2.3 |
| oracle | communications_element_manager |
| oracle | communications_session_report_manager · 8.0.0 → 8.2.4.0 |
| oracle | communications_session_route_manager · 8.0.0 → 8.2.4 |