CVE-2018-5473 : Security Advisory and Response

A security vulnerability, known as an Improper Restriction of Operations within the Bounds of a Memory Buffer issue, was identified in GE D60 Line Distance Relay devices with firmware Version 7.11 and earlier. The device's SSH functions are susceptible to buffer overflow circumstances, which could potentially enable an external attacker to execute unauthorized code on the device.

Understanding CVE-2018-5473

This CVE entry highlights a critical vulnerability in GE D60 Line Distance Relay devices that could lead to unauthorized code execution.

What is CVE-2018-5473?

CVE-2018-5473 is an Improper Restriction of Operations within the Bounds of a Memory Buffer issue affecting GE D60 Line Distance Relay devices with firmware Version 7.11 and earlier.

The Impact of CVE-2018-5473

The vulnerability could allow a remote attacker to execute arbitrary code on the affected device, potentially leading to unauthorized access and control.

Technical Details of CVE-2018-5473

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in GE D60 Line Distance Relay devices arises from buffer overflow conditions in the SSH functions, enabling attackers to exploit the device.

Affected Systems and Versions

Product: GE D60 Line Distance Relay
Vendor: n/a
Versions Affected: GE D60 Line Distance Relay firmware Version 7.11 and earlier

Exploitation Mechanism

The vulnerability allows remote attackers to trigger buffer overflow conditions in the SSH functions, potentially leading to the execution of unauthorized code.

Mitigation and Prevention

Protecting systems from CVE-2018-5473 requires immediate action and long-term security measures.

Immediate Steps to Take

Update the firmware of GE D60 Line Distance Relay devices to a secure version that addresses the vulnerability.
Implement network segmentation to limit access to vulnerable devices.
Monitor network traffic for any suspicious activities that may indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch all devices and software to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.
Educate users and administrators about cybersecurity best practices to enhance overall security posture.

Patching and Updates

Check for firmware updates and security advisories from the device vendor regularly.
Apply patches promptly to ensure that known vulnerabilities are mitigated effectively.