CVE-2018-7803 : Security Advisory and Response

Triconex TriStation Emulator V1.2.0 has a vulnerability that could lead to a crash when receiving a specially crafted packet. This CVE does not affect the safety functions of Triconex hardware products.

Understanding CVE-2018-7803

This CVE involves an improper check for unusual or exceptional conditions in the Triconex TriStation Emulator V1.2.0.

What is CVE-2018-7803?

The vulnerability in Triconex TriStation Emulator V1.2.0 can cause the emulator to crash if it receives a specifically crafted packet. It is important to note that this vulnerability only affects the emulator when operating in offline mode and does not impact the safety functions of Triconex hardware products.

The Impact of CVE-2018-7803

The vulnerability poses a risk of crashing the emulator but does not compromise the safety functions of Triconex hardware products in a plant setting.

Technical Details of CVE-2018-7803

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is classified as CWE-754 and results from an improper check for unusual or exceptional conditions in the Triconex TriStation Emulator V1.2.0.

Affected Systems and Versions

Product: Triconex TriStation Emulator V1.2.0
Vendor: n/a
Version: Triconex TriStation Emulator V1.2.0

Exploitation Mechanism

The vulnerability can be exploited by sending a specially crafted packet to the emulator, causing it to crash.

Mitigation and Prevention

Protecting systems from CVE-2018-7803 is crucial for maintaining security.

Immediate Steps to Take

Avoid running the Triconex TriStation Emulator V1.2.0 in offline mode whenever possible.
Implement network security measures to prevent the reception of malicious packets.

Long-Term Security Practices

Regularly update the emulator software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from the vendor.
Apply patches and updates provided by the vendor to address the CVE-2018-7803 vulnerability.