Published: April 7, 2015
Vulnerability in OPC Test Client
PAC Project Basic
PAC Project Professional
Problem affects: OPC Test Client in R9.4007 and lower
Resolved In Version:
Problem is fixed in version: R9.4008
There is a stack buffer overflow bug in older versions of OPC Test Client that can be exploited to execute code through exception handler chain corruption. This vulnerability is identified in the National Vulnerability Database as: CVE-2015-1007. (This link may not be working yet; if not, more information can be found on the ICS-CERT website at: https://ics-cert.us-cert.gov/advisories/ICSA-15-120-01)
How to tell if your OPC Test Client is affected
The OPC Test Client that contains the vulnerability was released with PAC Project versions R9.4007 and lower. We recommend you delete this older client, which looks like this (see steps to delete in the Resolution section, below):
Opto 22 has resolved this issue. Starting with PAC Project Pro 9.4008, we no longer include an OPC Test Client with PAC Project or the OptoOPCServer. We have made an alternate test client available (ProSys OPC Client) on our FTP site at ftp://ftp.opto22.com. Additional details about how to obtain and use the ProSys Test Client are in the updated version of the OptoOPCServer User's Guide, which is installed with the 9.4008 version of PAC Project Pro.
IMPORTANT: If you have the older OPC Test Client, we recommend you delete it from your computer. Follow these steps (steps may vary slightly depending on your version of Windows):
- Click the Start button and navigate to Programs > Opto 22 > PAC Project > OptoOPCServer.
- Right-click on the OPC Test Client link and choose Delete.
- Navigate to Program Files > Opto 22 > PAC Project.
- Right-click on the application file opctest.exe and choose Delete.
Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
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