ZDI-21-1553: Microsoft Azure Defender for IoT Improper Certificate Validation Authentication Bypass Vulnerability
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Defender for IoT |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-1553?
The vulnerability ZDI-21-1553 is considered to have a high severity due to the potential for remote exploitation without authentication.
How do I fix ZDI-21-1553?
To fix ZDI-21-1553, ensure that you apply the latest security updates provided by Microsoft for Azure Defender for IoT.
What types of installations are affected by ZDI-21-1553?
ZDI-21-1553 affects installations of Microsoft Azure Defender for IoT console and sensor appliances.
Can ZDI-21-1553 be exploited without user interaction?
Yes, ZDI-21-1553 can be exploited by remote attackers without any user interaction required.
What is the primary issue caused by ZDI-21-1553?
The primary issue caused by ZDI-21-1553 is the ability for attackers to bypass authentication due to a flaw in the password reset mechanism.
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