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nvd[email protected]NVD:CVE-2021-22696
HistoryApr 02, 2021 - 10:15 a.m.

CVE-2021-22696

2021-04-0210:15:12
CWE-400
CWE-918
[email protected]
web.nvd.nist.gov

5 Medium

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

7.5 High

CVSS3

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

0.003 Low

EPSS

Percentile

71.1%

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
Node
apachecxfRange<3.3.10
OR
apachecxfRange3.4.0–3.4.3
Node
oraclebusiness_intelligenceMatch5.5.0.0.0enterprise
OR
oraclebusiness_intelligenceMatch5.9.0.0.0enterprise
OR
oraclebusiness_intelligenceMatch12.2.1.3.0enterprise
OR
oraclebusiness_intelligenceMatch12.2.1.4.0enterprise
OR
oraclecommunications_diameter_intelligence_hubRange8.0.0–8.1.0
OR
oraclecommunications_diameter_intelligence_hubRange8.2.0–8.2.3
OR
oraclecommunications_element_managerMatch8.2.2
OR
oraclecommunications_session_report_managerRange8.0.0–8.2.4.0
OR
oraclecommunications_session_route_managerRange8.0.0–8.2.4

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5 Medium

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

7.5 High

CVSS3

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

0.003 Low

EPSS

Percentile

71.1%

JSON
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