Relative Path Traversal vulnerability in ZkTeco-based OEM devices allows an attackerto write any file on the system with root privileges.This issue affects 
ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec 
ST-FR041ME and possibly others) with the ZAM170-NF-1.8.25-7354-Ver1.0.0 
and possibly others.