Delta Electronics CNCSoft-B DOPSoft

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1. EXECUTIVE SUMMARY
CVSS v3 7.8
ATTENTION: Low attack complexity
Vendor: Delta Electronics
Equipment: CNCSoft-B DOPSoft
Vulnerability: Uncontrolled Search Path Element
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to achieve remote code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Delta Electronics products are affected:
CNCSoft-B v1.0.0.4 DOPSoft: versions prior to v4.0.0.82
3.2.1 UNCONTROLLED SEARCH PATH ELEMENT CWE-427
The affected product insecurely loads libraries, which may allow an attacker to use DLL hijacking and takeover the system where the software is installed.
CVE-2024-1595 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
3.3 BACKGROUND
CRITICAL INFRASTRUCTURE SECTORS: Energy
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Taiwan
3.4 RESEARCHER
Delta Electronics reported this vulnerability to CISA.
4. MITIGATIONS
Delta recommends users upgrade to CNCSoft-B v1.0.0.4, which includes DOPSoft v4.0.0.94.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
5. UPDATE HISTORY
February 22, 2024: Initial PublicationICS AdvisoriesRead More