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CVE-2020-12001 Explained : Impact and Mitigation

Learn about CVE-2020-12001 affecting FactoryTalk Linx, RSLinx Classic, and other Rockwell Automation software versions. Find mitigation steps and the impact of this improper input validation vulnerability.

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior, Connected Components Workbench: Version 12 and prior, ControlFLASH: Version 14 and later, ControlFLASH Plus: Version 1 and later, FactoryTalk Asset Centre: Version 9 and later, FactoryTalk Linx CommDTM: Version 1 and later, Studio 5000 Launcher: Version 31 and later, Studio 5000 Logix Designer software: Version 32 and prior are vulnerable to improper input validation (CWE-20). The parsing mechanism lacks input sanitation, potentially enabling attackers to manipulate files, access sensitive data, or execute arbitrary code.

Understanding CVE-2020-12001

This CVE identifies a vulnerability in various Rockwell Automation software products that could be exploited by malicious actors.

What is CVE-2020-12001?

The vulnerability arises from the inadequate input validation in the file parsing mechanism of the affected software versions, allowing attackers to compromise system integrity.

The Impact of CVE-2020-12001

The vulnerability could lead to unauthorized access, data exposure, or the execution of arbitrary code, posing significant risks to affected systems.

Technical Details of CVE-2020-12001

The following technical details outline the specifics of the CVE.

Vulnerability Description

        Improper input validation vulnerability (CWE-20) in Rockwell Automation software products
        Parsing mechanism lacks input sanitation, enabling potential exploitation

Affected Systems and Versions

        FactoryTalk Linx versions 6.00, 6.10, and 6.11
        RSLinx Classic v4.11.00 and earlier
        Connected Components Workbench: Version 12 and prior
        ControlFLASH: Version 14 and later
        ControlFLASH Plus: Version 1 and later
        FactoryTalk Asset Centre: Version 9 and later
        FactoryTalk Linx CommDTM: Version 1 and later
        Studio 5000 Launcher: Version 31 and later
        Studio 5000 Logix Designer software: Version 32 and prior

Exploitation Mechanism

The vulnerability allows attackers to use specially crafted files to traverse the file system, potentially modifying or exposing sensitive data or executing arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2020-12001 requires immediate actions and long-term security practices.

Immediate Steps to Take

        Apply vendor-provided patches or updates promptly
        Implement network segmentation to limit exposure
        Monitor for any suspicious activities or file manipulations

Long-Term Security Practices

        Regularly update software and firmware to the latest versions
        Conduct security assessments and penetration testing
        Educate users on safe file handling practices

Patching and Updates

        Rockwell Automation may release patches or updates to address the vulnerability
        Stay informed about security advisories and apply patches as soon as they are available

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