Takebishi Electric DeviceXPlorer OPC Server fails to properly validate OPC server handles

Overview

The Takebishi Electric DeviceXPlorer OPC server contains a vulnerability that may allow a remote attacker to execute arbitary code or cause a denial-of-service.

Description

OLE for Process Control (OPC) is a specification for a standard set of OLE COM objects for use in the process control and manufacturing fields. OPC servers are often used in control systems to consolidate field and network device information.

The Takebishi Electric DeviceXPlorer OPC Server fails to properly validate server handles. This vulnerability may be triggered by an attacker with access to the server’s OPC interface.

The following versions of DeviceXPlorer OPC Server are affected by this vulnerability:

* DeviceXPlorer MELSEC OPC Server
* DeviceXPlorer SYSMAC OPC Server
* DeviceXPlorer FA-M3 OPC Server
* DeviceXPlorer TOYOPUC OPC Server
* DeviceXPlorer HIDIC OPC Server
* DeviceXPlorer MODBUS OPC Server

Refer to Takebishi’s Security Notice for DeviceXPlorer OPC Server for more information.

Impact

An attacker with access to the Takebishi Electric DeviceXPlorer OPC Server may be able to arbitrarily access server process memory, potentially allowing that attacker to execute arbitrary code or cause a denial-of-service.

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Solution

Upgrade
Takebishi has released DeviceXPlorer OPC Server V3.12 Build3 to address this vulnerability. Refer to Takebishi’s Security Notice for DeviceXPlorer OPC Server for more information.

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Restrict Access to the server

Restrict remote access to the server to only trusted hosts by using firewalls or only connecting them to private networks.

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Vendor Information

926551

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Takebishi __ Affected

Updated: March 16, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to <http://www.faweb.net/us/opc/1231207.html&gt;.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23926551 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.faweb.net/us/opc/1231207.html&gt;
• <http://www.faweb.net/us/opc/&gt;
• <http://www.neutralbit.com/en/rd/opctest/&gt;
• <http://www.securityfocus.com/bid/23037&gt;

Acknowledgements

This vulnerability was reported by NeutralBit.

This document was written by Jeff Gennari based on information from NeutralBit and Takebishi.

Other Information

CVE IDs:	CVE-2007-1319
Severity Metric:	4.50 Date Public: