CVE-2018-7687 : Vulnerability Insights and Analysis

A vulnerability has been identified in the Micro Focus Client for OES prior to version 2 SP4 IR8a that could potentially enable a local attacker to gain elevated privileges by exploiting a buffer overflow.

Understanding CVE-2018-7687

What is CVE-2018-7687?

The CVE-2018-7687 vulnerability is an elevation of privilege issue in the Micro Focus Client for Open Enterprise Server (OES) before version 2 SP4 IR8a. It allows a local attacker to exploit a buffer overflow in the ncfsd.sys component.

The Impact of CVE-2018-7687

The impact of this vulnerability is rated as high, with a CVSS base score of 7.8. It can lead to elevated privileges for an attacker, posing risks to confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2018-7687

Vulnerability Description

The vulnerability in the Micro Focus Client for OES before version 2 SP4 IR8a allows a local attacker to gain elevated privileges through a buffer overflow in the ncfsd.sys component.

Affected Systems and Versions

Product: Client for Open Enterprise Server
Vendor: Micro Focus
Versions Affected: 2 SP4 (IR8a) and below

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Availability Impact: High
Confidentiality Impact: High
Integrity Impact: High

Mitigation and Prevention

Immediate Steps to Take

Update to version 2 SP4 IR8a or later to mitigate the vulnerability.
Monitor vendor sources for patches and security advisories.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access.
Regularly update and patch software to address security vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Micro Focus to address the CVE-2018-7687 vulnerability.