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.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 6 products from apache, from oracle, from oracle and 3 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2021-04-02T10:15:12.200
2024-11-21T05:50:28.830
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | apache | cxf | < 3.3.10 | Yes |
| Application | apache | cxf | < 3.4.3 | Yes |
| Application | oracle | business_intelligence | 5.5.0.0.0 | Yes |
| Application | oracle | business_intelligence | 5.9.0.0.0 | Yes |
| Application | oracle | business_intelligence | 12.2.1.3.0 | Yes |
| Application | oracle | business_intelligence | 12.2.1.4.0 | Yes |
| Application | oracle | communications_diameter_intelligence_hub | ≤ 8.1.0 | Yes |
| Application | oracle | communications_diameter_intelligence_hub | ≤ 8.2.3 | Yes |
| Application | oracle | communications_element_manager | 8.2.2 | Yes |
| Application | oracle | communications_session_report_manager | ≤ 8.2.4.0 | Yes |
| Application | oracle | communications_session_route_manager | ≤ 8.2.4 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.