Automated Solutions Modbus TCP Slave ActiveX Control Denial of Service VulnerabilityTPTI-07-15: September 17th, 2007
Modbus RTU/ASCII/TCP Slave ActiveX Control
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5598. For further product information on the TippingPoint IPS:
Vulnerability DetailsThis 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.
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 ResponseAutomated Solutions has issued an update to correct this vulnerability. More details can be found at:
2007-08-20 - Vulnerability reported to vendor
2007-09-17 - Coordinated public release of advisory