Description
In Apache CXF's OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at registration time. 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
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Affected products
- apache / cxf3.6.12
- Apache Software Foundation / Apache CXF0 – 3.6.12
- Apache Software Foundation / Apache CXF4.0.0 – 4.1.8
- Apache Software Foundation / Apache CXF4.2.0 – 4.2.3
References
Updated 13m ago · 8 sources