CVE-2020-8338 : Security Advisory and Response

A DLL search path vulnerability in Lenovo Diagnostics prior to version 4.35.4 could allow local users to execute code on the system.

Understanding CVE-2020-8338

This CVE involves a security vulnerability in Lenovo Diagnostics software.

What is CVE-2020-8338?

CVE-2020-8338 is a DLL search path vulnerability in Lenovo Diagnostics that could be exploited by a local user to run arbitrary code on the system.

The Impact of CVE-2020-8338

The vulnerability has a CVSS base score of 7.8, indicating a high severity issue with significant impacts on confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2020-8338

Details about the vulnerability, affected systems, and exploitation methods.

Vulnerability Description

The vulnerability allows a user with local access to load and execute a malicious DLL file, potentially leading to unauthorized code execution.

Affected Systems and Versions

Product: Lenovo Diagnostics
Vendor: Lenovo
Versions Affected: < 4.35.4 (unspecified/custom version)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Scope: Unchanged

Mitigation and Prevention

Steps to mitigate the vulnerability and prevent exploitation.

Immediate Steps to Take

Upgrade Lenovo Diagnostics to version 4.35.4 or newer.

Long-Term Security Practices

Regularly update software and firmware to patch known vulnerabilities.
Implement least privilege access controls to limit potential attack surfaces.
Monitor and restrict DLL loading to trusted directories.

Patching and Updates

Apply security patches and updates provided by Lenovo to address the vulnerability.