In Apache CXF's DefaultEncryptingOAuthDataProvider, revoked access tokens still decrypt successfully, and TokenIntrospectionService reports active:true. The same applies to refresh tokens. This violates the RFC stipulations that 'The authorization server MUST invalidate the token.' and 'introspection of a revoked token MUST return {"active":false}'.
Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 3
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Apache Cxf
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
|
— |
3.6.12
|
|
Apache Cxf
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
|
4.0.0
|
4.1.8
|
|
Apache Cxf
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
|
4.2.0
|
4.2.3
|