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Eight Critical ICS Flaws Found by CISA



The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released eight Industrial Control Systems (ICS) advisories on Tuesday, warning of critical flaws affecting equipment from Delta Electronics and Rockwell Automation. This includes 13 security vulnerabilities in Delta Electronics' InfraSuite Device Master, a real-time device monitoring software. All versions prior to 1.0.5 are affected by the issues. "Successful exploitation of these vulnerabilities could allow an unauthenticated attacker to obtain access to files and credentials, escalate privileges, and remotely execute arbitrary code," CISA said. Top of the list is CVE-2023-1133 (CVSS score: 9.8), a critical flaw that arises from the fact that InfraSuite Device Master accepts unverified UDP packets and deserializes the content, thereby allowing an unauthenticated remote attacker to execute arbitrary code. Two other deserialization flaws, CVE-2023-1139 (CVSS score: 8.8) and CVE-2023-1145 (CVSS score: 7.8) could also be weaponized to obtain remote code execution, CISA cautioned. Piotr Bazydlo and an anonymous security researcher have been credited with discovering and reporting the shortcomings to CISA. Another set of vulnerabilities relates to Rockwell Automation's ThinManager ThinServer and affects the following versions of the thin client and remote desktop protocol (RDP) server management software - The most severe of the issues are two path traversal flaw tracked as CVE-2023-28755 (CVSS score: 9.8) and CVE-2023-28756 (CVSS score: 7.5) that could permit an unauthenticated remote attacker to upload arbitrary files to the directory where the ThinServer.exe is installed. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released eight Industrial Control Systems (ICS) advisories on Tuesday, warning of critical flaws affecting equipment from Delta Electronics and Rockwell Automation. This includes 13 security vulnerabilities in Delta Electronics' InfraSuite Device Master, a real-time device monitoring software. All versions prior to 1.0.5 are affected by the issues. "Successful exploitation of these vulnerabilities could allow an unauthenticated attacker to obtain access to files and credentials, escalate privileges, and remotely execute arbitrary code," CISA said. Top of the list is CVE-2023-1133 (CVSS score: 9.8), a critical flaw that arises from the fact that InfraSuite Device Master accepts unverified UDP packets and deserializes the content, thereby allowing an unauthenticated remote attacker to execute arbitrary code. Two other deserialization flaws, CVE-2023-1139 (CVSS score: 8.8) and CVE-2023-1145 (CVSS score: 7.8) could also be weaponized to obtain remote code execution, CISA cautioned. Piotr Bazydlo and an anonymous security researcher have been credited with discovering and reporting the shortcomings to CISA. Another set of vulnerabilities relates to Rockwell Automation's ThinManager ThinServer and affects the following versions of the thin client and remote desktop protocol (RDP) server management software - The most severe of the issues are two path traversal flaw tracked as CVE-2023-28755 (CVSS score: 9.8) and CVE-2023-28756 (CVSS score: 7.5) that could permit an unauthenticated remote attacker to upload arbitrary files to the directory where the ThinServer.exe is installed. These vulnerabilities could have a major impact on the companies that use these products as well as the people that are employed by or work with these companies. It is important to be aware of the potential risks that come with using these products and to take the necessary precautions to protect yourself and your company.

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