CVE-2020-10642 : Vulnerability Insights and Analysis

Rockwell Automation RSLinx Classic versions 4.1.00 and prior are affected by a vulnerability that could allow an authenticated local attacker to execute malicious code using system privileges.

Understanding CVE-2020-10642

In Rockwell Automation RSLinx Classic versions 4.11.00 and earlier, a specific manipulation by an authenticated local attacker could result in the execution of malicious code with system privileges when launching RSLinx Classic.

What is CVE-2020-10642?

This CVE refers to an incorrect permission assignment vulnerability (CWE-732) in Rockwell Automation RSLinx Classic versions 4.1.00 and prior. The flaw could be exploited by an authenticated local attacker to modify a registry key, potentially leading to the execution of malicious code with elevated privileges.

The Impact of CVE-2020-10642

The vulnerability could allow an attacker to execute arbitrary code with system privileges, posing a significant security risk to affected systems. Successful exploitation could result in unauthorized access, data theft, or system compromise.

Technical Details of CVE-2020-10642

Rockwell Automation RSLinx Classic versions 4.1.00 and prior are susceptible to the following technical details:

Vulnerability Description

An authenticated local attacker could manipulate a registry key, enabling the execution of malicious code with system privileges upon opening RSLinx Classic.

Affected Systems and Versions

Product: Rockwell Automation RSLinx Classic
Versions: 4.1.00 and prior

Exploitation Mechanism

The vulnerability can be exploited by an authenticated local attacker through specific manipulation of a registry key, potentially leading to the execution of malicious code with elevated privileges.

Mitigation and Prevention

To address CVE-2020-10642, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches provided by Rockwell Automation to fix the vulnerability.
Restrict network access to vulnerable systems to minimize exposure.
Monitor for any suspicious activities on the network or affected systems.

Long-Term Security Practices

Implement the principle of least privilege to restrict user permissions.
Conduct regular security assessments and audits to identify and address vulnerabilities.
Educate users on best practices for system security and awareness.

Patching and Updates

Ensure that Rockwell Automation RSLinx Classic is updated to a secure version that addresses the vulnerability.