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KingScada kxClientDownload.ocx ActiveX Remote Code Execution

This module abuses the kxClientDownload.ocx ActiveX control distributed with WellingTech KingScada. The ProjectURL property can be abused to download and load arbitrary DLLs from arbitrary locations, leading to arbitrary code execution, because of a dangerous usage of LoadLibrary. Due to the nature of the vulnerability, this module will work only when Protected Mode is not present or not enabled.

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Module Name



  • Andrea Micalizzi
  • juan vazquez <juan.vazquez [at]>



  • Automatic


  • windows



Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/windows/browser/wellintech_kingscada_kxclientdownload msf exploit(wellintech_kingscada_kxclientdownload) > show targets ...targets... msf exploit(wellintech_kingscada_kxclientdownload) > set TARGET <target-id> msf exploit(wellintech_kingscada_kxclientdownload) > show options and set options... msf exploit(wellintech_kingscada_kxclientdownload) > exploit