CVE-2021-43882: Microsoft Azure Defender for IoT Improper Certificate Validation Authentication Bypass Vulnerability
Microsoft Defender for IoT Remote Code Execution Vulnerability
Other sources
This vulnerability allows remote attackers to bypass authentication on affected installations of Microsoft Azure Defender for IoT console and sensor appliances. Authentication is not required to exploit this vulnerability. The specific flaw exists within the password reset mechanism. The issue results from the lack of proper validation of a certificate chain. An attacker can leverage this vulnerability to bypass authentication on the system.
— ZDI
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-43882?
CVE-2021-43882 is an authentication bypass vulnerability in Microsoft Azure Defender for IoT that allows remote attackers to bypass authentication.
How severe is CVE-2021-43882?
CVE-2021-43882 has a severity rating of 9.8, which is considered critical.
How does CVE-2021-43882 impact Microsoft Azure Defender for IoT?
CVE-2021-43882 allows remote attackers to bypass authentication on affected installations of Microsoft Azure Defender for IoT console and sensor appliances.
What is the affected software by CVE-2021-43882?
The affected software by CVE-2021-43882 includes Microsoft Azure Defender for IoT, Microsoft Defender for IoT, and Microsoft Defender for IoT console and sensor appliances.
How can I fix CVE-2021-43882?
To fix CVE-2021-43882, update to version 10.5.3 or later of Microsoft Defender for IoT or follow the instructions provided by Microsoft to update the software version of Microsoft Azure Defender for IoT console and sensor appliances.