Advantech WebAccess/SCADA DrawSrv IOCTL 0x0000277d Directory Traversal Remote Code Execution Vulnerability

ID ZDI-20-627
Type zdi
Reporter Z0mb1E
Modified 2020-05-08T00:00:00


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess/SCADA. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of IOCTL 0x0000277d in DrawSrv.dll. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of Administrator.