Ancillary Function Driver (AFD) for WinSock Elevation of Privilege

A vulnerability exists in the Windows Ancillary Function Driver for Winsock afd.sys can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\SYSTEM. Due to a flaw in AfdNotifyRemoveIoCompletion, it is possible to create an arbitrary kernel Write-Where primitive, which can b...