CISA Alerts on Critical Security Vulnerabilities in Industrial Control Systems

The U.S. Cybersecurity and Infrastructure Security Company (CISA) has produced eight Industrial Manage Methods (ICS) advisories on Tuesday, warning of critical flaws impacting equipment from Delta Electronics and Rockwell Automation.

This includes 13 security vulnerabilities in Delta Electronics’ InfraSuite Product Master, a real-time system monitoring software package. All versions prior to 1..5 are influenced by the issues.

“Effective exploitation of these vulnerabilities could permit an unauthenticated attacker to get entry to information and credentials, escalate privileges, and remotely execute arbitrary code,” CISA stated.

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Leading of the list is CVE-2023-1133 (CVSS rating: 9.8), a critical flaw that arises from the reality that InfraSuite Gadget Learn accepts unverified UDP packets and deserializes the articles, thereby allowing for an unauthenticated distant attacker to execute arbitrary code.

Two other deserialization flaws, CVE-2023-1139 (CVSS score: 8.8) and CVE-2023-1145 (CVSS rating: 7.8) could also be weaponized to obtain remote code execution, CISA cautioned.

Piotr Bazydlo and an anonymous security researcher have been credited with identifying and reporting the shortcomings to CISA.

One more set of vulnerabilities relates to Rockwell Automation’s ThinManager ThinServer and has an effect on the following versions of the thin consumer and distant desktop protocol (RDP) server management software program –

• 6.x – 10.x
• 11.. – 11..5
• 11.1. – 11.1.5
• 11.2. – 11.2.6
• 12.. – 12..4
• 12.1. – 12.1.5, and
• 13.. – 13..1

The most severe of the issues are two route traversal flaw tracked as CVE-2023-28755 (CVSS score: 9.8) and CVE-2023-28756 (CVSS score: 7.5) that could permit an unauthenticated distant attacker to add arbitrary information to the directory where by the ThinServer.exe is installed.

Even far more troublingly, the adversary could weaponize CVE-2023-28755 to overwrite existing executable data files with trojanized variations, potentially primary to remote code execution.

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“Thriving exploitation of these vulnerabilities could allow for an attacker to possibly execute distant code execution on the concentrate on technique/product or crash the software,” CISA famous.

Users are encouraged to update to versions 11..6, 11.1.6, 11.2.7, 12..5, 12.1.6, and 13..2 to mitigate probable threats. ThinManager ThinServer versions 6.x – 10.x are retired, requiring that users update to a supported variation.

As workarounds, it is also encouraged that remote accessibility of port 2031/TCP is minimal to known thin clientele and ThinManager servers.

The disclosure comes extra than 6 months after CISA alerted of a substantial-severity buffer overflow vulnerability in Rockwell Automation ThinManager ThinServer (CVE-2022-38742, CVSS score: 8.1) that could result in arbitrary distant code execution.

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