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CVE-2021-42306
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
<p>An information disclosure vulnerability manifests when a user or an application uploads unprotected private key data as part of an authentication certificate <a href="https://docs.microsoft.com/en-us/graph/api/resources/keycredential?view=graph-rest-1.0">keyCredential</a>? on an Azure AD <a href="https://docs.microsoft.com/en-us/azure/active-directory/develop/app-objects-and-service-principals">Application or Service Principal</a> (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.</p> <p>Azure AD?addressed this vulnerability by preventing disclosure of any private key?values added?to the application.</p> <p>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.</p> <p>For more details on this issue, please refer to the <a href="https://aka.ms/CVE-2021-42306-AAD">MSRC Blog Entry</a>.</p> .
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4/10
- Exploit Score
- 8/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- Single
- Impact Score
- 2.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 8.1/10
- Exploit Score
- 2.8/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 5.2/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:microsoft:azure_migrate:*:*:*:*:*:*:*:* |
Yes
|
- | 2021-11-02 | |
cpe:2.3:a:microsoft:azure_active_site_recovery:*:*:*:*:*:*:* |
Yes
|
- | 2021-11-01 | |
cpe:2.3:a:microsoft:azure_automation:*:*:*:*:*:*:*:* |
Yes
|
- | 2021-10-15 | |
cpe:2.3:a:microsoft:azure_active_directory:*:*:*:*:*:*:*:* |
Yes
|
- | 2021-10-30 |