CVE-2021-40388 : Security Advisory and Response

This CVE-2021-40388 article provides detailed information about a privilege escalation vulnerability in Advantech SQ Manager Server 1.0.6.

Understanding CVE-2021-40388

This section delves into the nature and impact of the vulnerability.

What is CVE-2021-40388?

The vulnerability in Advantech SQ Manager Server 1.0.6 allows malicious files to escalate privileges to NT SYSTEM authority.

The Impact of CVE-2021-40388

The impact is rated as high with a CVSS base score of 8.8. It affects confidentiality, integrity, and availability.

Technical Details of CVE-2021-40388

Exploring the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability allows for privilege escalation by replacing a specially-crafted file in the system.

Affected Systems and Versions

Product: Advantech SQ Manager Server 1.0.6
Vendor: N/A
Affected Version: N/A

Exploitation Mechanism

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

Mitigation and Prevention

Guidelines to mitigate the vulnerability.

Immediate Steps to Take

Update the software to a patched version.
Monitor system for any unauthorized file replacements.

Long-Term Security Practices

Implement the principle of least privilege.
Regularly review and update access permissions.

Patching and Updates

Stay informed about security updates and apply patches promptly to prevent exploitation.