製品・ソフトウェアに関する情報
複数の Azure 製品における情報を公開される脆弱性
Title 複数の Azure 製品における情報を公開される脆弱性
Summary

複数の Azure 製品には、Azure Active Directory に不備があるため、情報を公開される脆弱性が存在します。

Possible impacts 情報を公開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 Nov. 17, 2021, midnight
Registration Date Dec. 1, 2021, 12:27 p.m.
Last Update Dec. 1, 2021, 12:27 p.m.
CVSS3.0 : 警告
Score 6.5
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS2.0 : 警告
Score 4
Vector AV:N/AC:L/Au:S/C:P/I:N/A:N
Affected System
マイクロソフト
Azure Active Directory 
Azure Automation 
Azure Migrate 
Azure Site Recovery 
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12月01日]
  掲載
Dec. 1, 2021, 12:27 p.m.

NVD Vulnerability Information
CVE-2021-42306
Summary

An information disclosure vulnerability manifests when a user or an application uploads unprotected private key data as part of an authentication certificate keyCredential? on an Azure AD Application or Service Principal (which is not recommended). This vulnerability allows a user or service in the tenant with application read access to read the private key data that was added to the application.
Azure AD?addressed this vulnerability by preventing disclosure of any private key?values added?to the application.
Microsoft has identified services that could manifest this vulnerability, and steps that customers should take to be protected. Refer to the FAQ section for more information.
For more details on this issue, please refer to the MSRC Blog Entry.

Publication Date Nov. 24, 2021, 10:15 a.m.
Registration Date Nov. 24, 2021, 4 p.m.
Last Update Nov. 21, 2024, 3:27 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:microsoft:azure_migrate:*:*:*:*:*:*:*:* 2021-11-02
cpe:2.3:a:microsoft:azure_active_site_recovery:*:*:*:*:*:*:*:* 2021-11-01
cpe:2.3:a:microsoft:azure_automation:*:*:*:*:*:*:*:* 2021-10-15
cpe:2.3:a:microsoft:azure_active_directory:*:*:*:*:*:*:*:* 2021-10-30
Related information, measures and tools
Common Vulnerabilities List