CVE-2021-42313: Microsoft Azure Defender for IoT sync Endpoint SQL Injection 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. Authentication is not required to exploit this vulnerability. The specific flaw exists within the sync endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to bypass authentication on the system and execute arbitrary code in the context of root.
— ZDI
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-42313?
CVE-2021-42313 is a vulnerability in Microsoft Azure Defender for IoT that allows remote attackers to bypass authentication.
How severe is CVE-2021-42313?
CVE-2021-42313 has a severity rating of 10, which is considered critical.
How does CVE-2021-42313 work?
CVE-2021-42313 exploits a lack of proper validation in the sync endpoint of Microsoft Azure Defender for IoT, allowing remote attackers to bypass authentication.
Which software versions are affected by CVE-2021-42313?
Microsoft Azure Defender for IoT versions up to 10.5.2 are affected by CVE-2021-42313.
How can I fix CVE-2021-42313?
To fix CVE-2021-42313, update your Microsoft Azure Defender for IoT installation to the latest version. Refer to the provided documentation and patch instructions for more details.