Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

January 2022

Detecting CVE-2022-21907, an IIS HTTP Remote Code Execution vulnerability

In January 2022, Microsoft disclosed a remote code execution vulnerability for Internet Information Server (IIS) identified as CVE-2022-21907, which they have subsequently reported as wormable. Through Microsoft, Corelight Labs was able to review a proof of concept for an attack against the vulnerability. This blog presents an open source detection method that Corelight Labs is releasing to detect exploit attempts of CVE-2022-21907.