// For flags

CVE-2021-42306

Azure Active Directory Information Disclosure Vulnerability

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una vulnerabilidad de Divulgación de Información de Azure Active Directory

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-10-12 CVE Reserved
  • 2021-11-24 CVE Published
  • 2024-05-22 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-522: Insufficiently Protected Credentials
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
 Azure Active Directory
Search vendor "Microsoft" for product "Azure Active Directory"
 < 2021-10-30
Search vendor "Microsoft" for product "Azure Active Directory" and version " < 2021-10-30"
-
Affected
Microsoft
Search vendor "Microsoft"
 Azure Active Site Recovery
Search vendor "Microsoft" for product "Azure Active Site Recovery"
 < 2021-11-01
Search vendor "Microsoft" for product "Azure Active Site Recovery" and version " < 2021-11-01"
-
Affected
Microsoft
Search vendor "Microsoft"
 Azure Automation
Search vendor "Microsoft" for product "Azure Automation"
 < 2021-10-15
Search vendor "Microsoft" for product "Azure Automation" and version " < 2021-10-15"
-
Affected
Microsoft
Search vendor "Microsoft"
 Azure Migrate
Search vendor "Microsoft" for product "Azure Migrate"
 < 2021-11-02
Search vendor "Microsoft" for product "Azure Migrate" and version " < 2021-11-02"
-
Affected