[NT] Automated Solutions Modbus TCP Slave ActiveX Control Heap Corruption Vulnerability



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Automated Solutions Modbus TCP Slave ActiveX Control Heap Corruption
Vulnerability
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SUMMARY

A vulnerability allows remote attackers to execute arbitrary code on
systems with vulnerable installations of the Automated Solutions Modbus
TCP Slave ActiveX Control. Authentication is not required to exploit this
vulnerability.

DETAILS

The specific flaw exists within MiniHMI.exe which binds to TCP port 502.
When processing malformed Modbus requests on this port a controllable heap
corruption can occur which may result in execution of arbitrary code.

Vendor Response:
Automated Solutions has issued an update to correct this vulnerability.
More details can be found at:
<http://www.automatedsolutions.com/pub/asmbslv/setup.exe>
http://www.automatedsolutions.com/pub/asmbslv/setup.exe

Disclosure Timeline:
2007.08.20 - Vulnerability reported to vendor
2007.09.07 - Digital Vaccine released to TippingPoint customers
2007.09.17 - Coordinated public release of advisory


ADDITIONAL INFORMATION

The information has been provided by <mailto:TSRT@xxxxxxxx> The Zero Day
Initiative (ZDI).
The original article can be found at:
<http://www.zerodayinitiative.com/advisories/TPTI-07-15.html>
http://www.zerodayinitiative.com/advisories/TPTI-07-15.html



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