QNAP NAS Malware Remover Command Injection Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of QNAP NAS. Authentication is required to exploit this vulnerability. The specific flaw exists within the Malware Remover application. A crafted TAR file in the file system can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the admin user.