Description
The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider (IdP) that omits the `c_hash`, the RP becomes vulnerable to Authorization Code Substitution/Injection attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- apache / CXF3.6.12
- Apache Software Foundation / Apache CXF4.2.0 – 4.2.3
- Apache Software Foundation / Apache CXF4.0.0 – 4.1.8
- Apache Software Foundation / Apache CXF0 – 3.6.12
References
Updated 14m ago · 8 sources