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Apache CXF におけるサーバサイドのリクエストフォージェリの脆弱性
Title Apache CXF におけるサーバサイドのリクエストフォージェリの脆弱性
Summary

Apache CXF には、サーバサイドのリクエストフォージェリの脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date April 2, 2021, midnight
Registration Date Oct. 12, 2021, 6:02 p.m.
Last Update Oct. 12, 2021, 6:02 p.m.
CVSS3.0 : 重要
Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS2.0 : 警告
Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected System
Apache Software Foundation
Apache CXF 3.3.10 未満
Apache CXF 3.4.3 未満
日立
Hitachi Ops Center Common Services (海外販売のみ)
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2021年10月12日]
  掲載		 Oct. 12, 2021, 6:02 p.m.
NVD Vulnerability Information
CVE-2021-22696
Summary

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.

Publication Date April 2, 2021, 7:15 p.m.
Registration Date April 3, 2021, 10:03 a.m.
Last Update Nov. 21, 2024, 2:50 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:* 3.4.0 3.4.3
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:* 3.3.10
Configuration2 or higher or less more than less than
cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:* 8.0.0 8.2.4
cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:* 8.0.0 8.2.4.0
cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:communications_element_manager:8.2.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:* 8.0.0 8.1.0
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:* 8.2.0 8.2.3
Related information, measures and tools
Common Vulnerabilities List