Advisory details:
gitlab / maven/org.apache.cxf/cxf-rt-transports-http/CVE-2021-22696
| Advisory ID | gitlab/maven/org.apache.cxf/cxf-rt-transports-http/CVE-2021-22696 |
| Aliases |
CVE-2021-22696
|
| Summary | Uncontrolled Resource Consumption CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 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 of the spec. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Exploitability (E) | Access Vector (AV) | Access Complexity (AC) | Authentication (Au) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|
high functional unproven proof_of_concept not_defined |
local adjacent_network network |
high medium low |
multiple single none |
none partial complete |
none partial complete |
none partial complete |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.