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Equipment: CLICK, C-More, C-More Micro, Do-more Designer, GS Drives, SL-Soft SOLO
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Vulnerability: Uncontrolled Search Path Element
This updated advisory is a follow-up to the original advisory titled ICSA-17-313-01 AutomationDirect CLICK, C-More, C-More Micro, GS Drives, and SL-Soft SOLO that was published November 9, 2017, on the NCCIC/ICS-CERT website.
The following AutomationDirect products are affected:
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Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the system.
AutomationDirect has produced fixes for the following software:
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NCCIC recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available in the NCCIC Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT website.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely. High skill level is needed to exploit.
An uncontrolled search path element (DLL Hijacking) vulnerability has been identified. To exploit this vulnerability, an attacker could rename a malicious DLL to meet the criteria of the application, and the application would not verify that the DLL is correct. Once loaded by the application, the DLL could run malicious code at the privilege level of the application.
Mark Cross of RIoT Solutions reported this vulnerability to NCCIC.
Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Information Technology
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Georgia, United States