CVE Vulnerabilities

CVE-2021-42306

Insufficiently Protected Credentials

Published: Nov 24, 2021 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
4 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

Affected Software

Name Vendor Start Version End Version
Azure_active_directory Microsoft * 2021-10-30 (excluding)
Azure_active_site_recovery Microsoft * 2021-11-01 (excluding)
Azure_automation Microsoft * 2021-10-15 (excluding)
Azure_migrate Microsoft * 2021-11-02 (excluding)

Potential Mitigations

References