Description
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.
No analysis available yet.
Remediation
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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-1003 | 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. |
Github GHSA |
GHSA-7q4h-pj78-j7vg | Authorization service vulnerable to DDos attacks in Apache CFX |
References
History
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2025-02-13T16:27:45.767Z
Reserved: 2021-01-06T00:00:00.000Z
Link: CVE-2021-22696
No data.
Status : Modified
Published: 2021-04-02T10:15:12.200
Modified: 2024-11-21T05:50:28.830
Link: CVE-2021-22696
OpenCVE Enrichment
No data.
EUVD
Github GHSA