Article: 20-Year-Old Bug in Legacy Microsoft Code Plagues All Windows Users

Google Project Zero recently announced a 20 year old local privilege exploit (LPE) affecting all versions of Windows both server and client versions from Windows Server 2003 through Windows Server 2019 and Windows XP all the way through Windows 10. It takes advantage of the “ctfmon.exe” process which is a shared service for processing text input. This process doesn’t have access controls which means a malicious request to it will allow an unprivileged user to gain SYSTEM privileges. Microsoft has release a patch in their August updates.

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