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A number of DoS, Code Execution Vulnerabilities Present in Rockwell Automation Controllers

By Eduard Kovacs on December 29, 2022

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Organizations utilizing controllers made by Rockwell Automation have been knowledgeable just lately about a number of probably severe vulnerabilities.

The US Cybersecurity and Infrastructure Safety Company (CISA) final week revealed three advisories to explain a complete of 4 high-severity vulnerabilities. Rockwell Automation has revealed particular person advisories for every safety gap.

One flaw is CVE-2022-3156, which impacts the Studio 5000 Logix Emulate controller emulation software program. The vulnerability is attributable to a misconfiguration that leads to customers being granted elevated permissions on sure product companies. An attacker might exploit the weak spot for distant code execution.

The second vulnerability is CVE-2022-3157, which impacts CompactLogix, GuardLogix (together with Compact), and ControlLogix controllers. An attacker can exploit the flaw to launch a denial-of-service (DoS) assault towards a tool by sending specifically crafted CIP requests that trigger a “main non-recoverable fault”.

The remaining vulnerabilities impression MicroLogix 1100 and 1400 programmable logic controllers (PLCs). One of many safety holes, CVE-2022-46670, is a saved cross-site scripting (XSS) situation within the embedded webserver that may be exploited for distant code execution with out authentication.

“The payload is transferred to the controller over SNMP and is rendered on the homepage of the embedded web site,” Rockwell defined in its advisory (registration required).

The second bug, CVE-2022-3166, is a clickjacking situation that may be exploited by an attacker with community entry to the affected gadget to trigger a DoS situation for the webserver software.

Researchers from Veermata Jijabai Technological Institute (VJTI) and Georgia Institute of Expertise have been credited for reporting the MicroLogix PLC vulnerabilities to Rockwell.

The primary two vulnerabilities have been patched with updates. For the final two points, the seller has made accessible mitigations that ought to stop assaults.

Rockwell says it’s not conscious of any malicious assaults exploiting these vulnerabilities.

Associated: Unprotected Personal Key Permits Distant Hacking of Rockwell Controllers

Associated: New Vulnerabilities Enable Stuxnet-Model Assaults In opposition to Rockwell PLCs

Associated: Rockwell Automation Patches Crucial DoS/RCE Flaw in RSLinx Software program

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