You are viewing this page in an unauthorized frame window.
This is a potential security issue, you are being redirected to
https://nvd.nist.gov
An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Current 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.
Azure Active Directory Information Disclosure Vulnerability
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
By selecting these links, you will be leaving NIST webspace.
We have provided these links to other web sites because they
may have information that would be of interest to you. No
inferences should be drawn on account of other sites being
referenced, or not, from this page. There may be other web
sites that are more appropriate for your purpose. NIST does
not necessarily endorse the views expressed, or concur with
the facts presented on these sites. Further, NIST does not
endorse any commercial products that may be mentioned on
these sites. Please address comments about this page to [email protected].
CVE Modified by Microsoft Corporation5/28/2024 5:15:29 PM
Action
Type
Old Value
New Value
Changed
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>
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.
CVE Modified by Microsoft Corporation5/14/2024 5:30:24 AM
Action
Type
Old Value
New Value
CVE Modified by Microsoft Corporation12/28/2023 11:15:59 AM
Action
Type
Old Value
New Value
Changed
Description
Azure Active Directory Information Disclosure Vulnerability
<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>
Added
CVSS V3.1
Microsoft Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE Remap by NIST7/12/2022 1:42:04 PM
Action
Type
Old Value
New Value
Changed
CWE
CWE-668
CWE-522
Initial Analysis by NIST11/29/2021 2:13:09 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N)
Added
CWE
NIST CWE-668
Added
CPE Configuration
OR
*cpe:2.3:a:microsoft:azure_active_directory:*:*:*:*:*:*:*:* versions up to (excluding) 2021-10-30
*cpe:2.3:a:microsoft:azure_active_site_recovery:*:*:*:*:*:*:*:* versions up to (excluding) 2021-11-01
*cpe:2.3:a:microsoft:azure_automation:*:*:*:*:*:*:*:* versions up to (excluding) 2021-10-15
*cpe:2.3:a:microsoft:azure_migrate:*:*:*:*:*:*:*:* versions up to (excluding) 2021-11-02
Changed
Reference Type
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42306 No Types Assigned