RISK EVALUATION. Successful exploitation of these vulnerabilities could result in a buffer overflow and allow the attacker to gain full access to the system.
Rockwell Automation FactoryTalk Activation Manager and Studio 5000 Logix Designer uses the affected Wibu-Systems' products which internally use a version of libcurl that is vulnerable to a buffer overflow attack if curl is configured to redirect traffic through a SOCKS5 proxy.
A malicious proxy can exploit a bug in the implemented handshake to cause a buffer overflow.
If no SOCKS5 proxy has been configured, there is no attack surface.
CVE-2023-38545 has been assigned to this vulnerability.
A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is.
Rockwell Automation FactoryTalk Activation Manager and Studio 5000 Logix Designer uses the affected Wibu-Systems' products which contain a heap buffer overflow vulnerability in Wibu CodeMeter Runtime network service up to Version 7.60b that allows an unauthenticated, remote attacker to achieve RCE and gain full access of the host system.
CVE-2023-3935 has been assigned to this vulnerability.
A CVSS v3.1 base score of 7.5 has been calculated; the CVSS vector string is.
3.3 BACKGROUND 3.4 RESEARCHER. An anonymous researcher reported these vulnerabilities to CISA. 4.
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, recognizing VPNs may have vulnerabilities and should be updated to the most current version available.
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.
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.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploits that specifically target these vulnerabilities have been reported to CISA at this time.
This Cyber News was published on www.cisa.gov. Publication date: Thu, 04 Jan 2024 16:36:06 +0000