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Yokogawa CENTUM CS 3000 BKCLogSvr.exe Heap Buffer Overflow

This module abuses a buffer overflow vulnerability to trigger a Denial of Service of the BKCLogSvr component in the Yokogaca CENTUM CS 3000 product. The vulnerability exists in the handling of malformed log packets, with an unexpected long level field. The root cause of the vulnerability is a combination of usage of uninitialized memory from the stack and a dangerous string copy. This module has been tested successfully on Yokogawa CENTUM CS 3000 R3.08.50.

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Module Name



  • juan vazquez <juan.vazquez [at]>
  • Redsadic <julian.vilas [at]>




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 auxiliary/dos/scada/yokogawa_logsvr msf auxiliary(yokogawa_logsvr) > show actions ...actions... msf auxiliary(yokogawa_logsvr) > set ACTION <action-name> msf auxiliary(yokogawa_logsvr) > show options and set options... msf auxiliary(yokogawa_logsvr) > run