CVE-2024-21338 - Windows AppLocker Kernel Elevation of Privilege Vulnerability
CVE-2024-21338 is a privilege escalation vulnerability in the Windows AppLocker driver (appid.sys). The flaw resides in the AipSmartHashImageFile function, reachable via IOCTL 0x22A018, which allows user-mode input to control code execution. Specifically, the function dereferences two user-provided pointers from a shared SystemBuffer without verifying their validity or origin. One of these …