CVE-2018-7521 Explained : Impact and Mitigation

Omron CX-Supervisor Versions 3.30 and earlier are susceptible to use after free vulnerabilities, allowing exploitation by manipulating project files.

Understanding CVE-2018-7521

Exploitation of use after free vulnerabilities is possible in Omron CX-Supervisor Versions 3.30 and earlier by manipulating a project file during parsing.

What is CVE-2018-7521?

Use after free vulnerabilities in Omron CX-Supervisor Versions 3.30 and prior can be exploited when parsing specially crafted project files.

The Impact of CVE-2018-7521

Attackers can exploit this vulnerability to execute arbitrary code or cause a denial of service.
Successful exploitation could lead to system compromise and unauthorized access.

Technical Details of CVE-2018-7521

Omron CX-Supervisor is affected by a use after free vulnerability that can be triggered by manipulating project files.

Vulnerability Description

The vulnerability arises from improper handling of memory when parsing project files.

Affected Systems and Versions

Product: Omron CX-Supervisor
Vendor: ICS-CERT
Versions Affected: Version 3.30 and prior

Exploitation Mechanism

Exploitation involves manipulating project files during parsing to trigger the use after free vulnerability.

Mitigation and Prevention

Immediate Steps to Take:

Update Omron CX-Supervisor to the latest version.
Avoid opening project files from untrusted or unknown sources.

Long-Term Security Practices:

Regularly monitor vendor security advisories for updates.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates:

Apply patches and updates provided by ICS-CERT or the vendor to address the vulnerability.