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Home Information Security

CISA Alerts on Critical Security Vulnerabilities in Industrial Control Systems

admin by admin
March 22, 2023
in Information Security


Mar 22, 2023Ravie LakshmananICS/SCADA Security

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 –

  • 6.x – 10.x
  • 11.0.0 – 11.0.5
  • 11.1.0 – 11.1.5
  • 11.2.0 – 11.2.6
  • 12.0.0 – 12.0.4
  • 12.1.0 – 12.1.5, and
  • 13.0.0 – 13.0.1

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.

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

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“Successful exploitation of these vulnerabilities could allow an attacker to potentially perform remote code execution on the target system/device or crash the software,” CISA noted.

Users are advised to update to versions 11.0.6, 11.1.6, 11.2.7, 12.0.5, 12.1.6, and 13.0.2 to mitigate potential threats. ThinManager ThinServer versions 6.x – 10.x are retired, requiring that users upgrade to a supported version.

As workarounds, it is also recommended that remote access of port 2031/TCP is limited to known thin clients and ThinManager servers.

The disclosure arrives more than six months after CISA alerted of a high-severity buffer overflow vulnerability in Rockwell Automation ThinManager ThinServer (CVE-2022-38742, CVSS score: 8.1) that could result in arbitrary remote code execution.

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Tags: computer securitycyber attackscyber newscyber security newscyber security news todaycyber security updatescyber updatesdata breachhacker newshacking newshow to hackinformation securitynetwork securityransomware malwaresoftware vulnerabilitythe hacker news
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