plays_service.exe in the plays.tv service before 220.127.116.11, as distributed in AMD driver-installation packages and Gaming Evolved products, contains an HTTP message parsing function that takes a user-defined path and writes non-user controlled data as SYSTEM to the file when the extract_files parameter is used. This occurs without properly authenticating the user.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.