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CVE-2021-42306

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CVE-2021-42306

Published: Nov 24, 2021

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

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.

VendorProductVersions

Microsoft

Azure Automation

affected
1.0.0 - < publication

Microsoft

Azure Active Directory

affected
N/A

Microsoft

Azure Site Recovery

affected
N/A

Microsoft

Azure Migrate

affected
N/A

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

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