CVE-2018-19020 : What You Need to Know

CVE-2018-19020 was published on January 17, 2019, by ICS-CERT. The vulnerability affects CX-Supervisor versions 3.42 and earlier, allowing attackers to manipulate the application to read values beyond array boundaries.

Understanding CVE-2018-19020

This CVE entry describes a vulnerability in CX-Supervisor that could be exploited by attackers to perform out-of-bounds reads.

What is CVE-2018-19020?

When project files are processed by CX-Supervisor versions 3.42 and prior, and the offset value is tampered with, attackers can trick the application into retrieving values outside the array's boundaries.

The Impact of CVE-2018-19020

The vulnerability could lead to unauthorized access to sensitive information, potential system crashes, or even remote code execution if exploited by malicious actors.

Technical Details of CVE-2018-19020

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

CX-Supervisor versions 3.42 and earlier are susceptible to out-of-bounds read attacks when the offset value is manipulated, enabling unauthorized access to memory locations beyond the intended boundaries.

Affected Systems and Versions

Product: CX-Supervisor
Vendor: ICS-CERT
Versions Affected: Versions 3.42 and prior

Exploitation Mechanism

Attackers can exploit this vulnerability by tampering with the offset value in project files processed by CX-Supervisor, forcing the application to read values beyond the array's boundaries.

Mitigation and Prevention

Protecting systems from CVE-2018-19020 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update CX-Supervisor to a patched version that addresses the vulnerability.
Monitor and restrict access to critical systems to prevent unauthorized exploitation.

Long-Term Security Practices

Regularly update software and firmware to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Check for security advisories from ICS-CERT and apply patches promptly to secure systems against CVE-2018-19020.