SB2023031433 - Remote code execution in Microsoft IIS
Published: March 14, 2023
Security Bulletin ID
SB2023031433
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2023-23392)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in the HTTP Protocol Stack (http.sys) when handling HTTP/3 requests. A remote attacker can send a specially crafted HTTP/3 request to the affected server and execute arbitrary code on the system.
Successful exploitation of the vulnerability requires HTTP/3 to be enabled on the server.
Remediation
Install update from vendor's website.