Vulnerability Note VU#981849

Automated Solutions Modbus TCP Slave ActiveX Control Vulnerability

Original Release date: 19 Dec 2008 | Last revised: 19 Dec 2008

Overview

Automated Solutions Modbus TCP Slave ActiveX Control contains a vulnerability that may allow a remote attacker to execute arbitrary code or cause a denial-of-service.

Description

Automated Solutions Modbus TCP Slave ActiveX Control fails to properly process malformed "Modbus" requests to TCP port 502 due to an error in "MiniHMI.exe". According to TippingPoint:

    When processing malformed Modbus requests on this port a controllable heap corruption can occur which may result in execution of arbitrary code.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user running the MiniHMI.exe or cause a denial-of-service.

Solution

Upgrade
Automated Solutions has addressed this issue with an update. OEMs who suspect they use an affected version of the Automated Solutions Modbus TCP Slave ActiveX Control should contact Automated Solutions for more information. A link to an executable is available via TippingPoint, however, the nature of this executable is not known and clicking on unknown executables is not advisable.

Restrict Access

Permit network access only as required for proper site operation.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Automated SolutionsAffected-31 Oct 2008
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

This vulnerability was reported by Ganesh Devarajan of TippingPoint DVLabs.

This document was written by Chris Taschner.

Other Information

  • CVE IDs: CVE-2007-4827
  • Date Public: 20 Sep 2007
  • Date First Published: 19 Dec 2008
  • Date Last Updated: 19 Dec 2008
  • Severity Metric: 2.84
  • Document Revision: 15

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