Apache CXF’s OIDC relying-party component could redirect users to an attacker-controlled URL after successful authentication. The issue occurs because attacker-controlled state parameters are preserved and later used as redirect targets without validating that the final decoded URI belongs to the RP’s origin. Both directly encoded and double-encoded external URLs can trigger the issue, depending on which validation path is used.
Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, 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
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial 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:*:*:*:*:*:*:*:*
|
— |
3.6.13
|
|
Apache Cxf
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
|
4.0.0
|
4.1.9
|
|
Apache Cxf
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
|
4.2.0
|
4.2.4
|