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ApacheCVE-2021-22696

HistoryApr 02, 2021 - 10:15 a.m.

CVE-2021-22696

2021-04-0210:15:12

CWE-400

CWE-918

apache

web.nvd.nist.gov

105

cxf

oauth 2

jwt

vulnerability

security

apache cxf

rest

ddos

nvd

cve-2021-22696

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.3

Confidence

High

EPSS

0.003

Percentile

69.8%

JSON

CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 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 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.

Affected configurations

Nvd

Vulners

Node

apachecxfRange<3.3.10

apachecxfRange3.4.0–3.4.3

Node

oraclebusiness_intelligenceMatch5.5.0.0.0enterprise

oraclebusiness_intelligenceMatch5.9.0.0.0enterprise

oraclebusiness_intelligenceMatch12.2.1.3.0enterprise

oraclebusiness_intelligenceMatch12.2.1.4.0enterprise

oraclecommunications_diameter_intelligence_hubRange8.0.0–8.1.0

oraclecommunications_diameter_intelligence_hubRange8.2.0–8.2.3

oraclecommunications_element_managerMatch8.2.2

oraclecommunications_session_report_managerRange8.0.0–8.2.4.0

oraclecommunications_session_route_managerRange8.0.0–8.2.4

VendorProductVersionCPE
apachecxf*cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
oraclebusiness_intelligence5.5.0.0.0cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0:*:*:*:enterprise:*:*:*
oraclebusiness_intelligence5.9.0.0.0cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0:*:*:*:enterprise:*:*:*
oraclebusiness_intelligence12.2.1.3.0cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:*
oraclebusiness_intelligence12.2.1.4.0cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*
oraclecommunications_diameter_intelligence_hub*cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:*
oraclecommunications_element_manager8.2.2cpe:2.3:a:oracle:communications_element_manager:8.2.2:*:*:*:*:*:*:*
oraclecommunications_session_report_manager*cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*
oraclecommunications_session_route_manager*cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
apache	cxf	*	cpe:2.3:a:apache:cxf::::::::
oracle	business_intelligence	5.5.0.0.0	cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0::::enterprise:::
oracle	business_intelligence	5.9.0.0.0	cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0::::enterprise:::
oracle	business_intelligence	12.2.1.3.0	cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0::::enterprise:::
oracle	business_intelligence	12.2.1.4.0	cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0::::enterprise:::
oracle	communications_diameter_intelligence_hub	*	cpe:2.3:a:oracle:communications_diameter_intelligence_hub::::::::
oracle	communications_element_manager	8.2.2	cpe:2.3:a:oracle:communications_element_manager:8.2.2:::::::*
oracle	communications_session_report_manager	*	cpe:2.3:a:oracle:communications_session_report_manager::::::::
oracle	communications_session_route_manager	*	cpe:2.3:a:oracle:communications_session_route_manager::::::::

CNA Affected

[
  {
    "product": "Apache CXF",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThan": "3.4.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "3.3.10",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]