CVE-2020-5362 : Vulnerability Insights and Analysis

Dell Client Consumer and Commercial platforms have an improper authorization vulnerability in the Dell Manageability interface, allowing unauthorized actors with local system access to bypass BIOS Administrator authentication.

Understanding CVE-2020-5362

This CVE involves an improper authorization vulnerability in Dell Client Consumer and Commercial platforms, impacting the BIOS Administrator authentication process.

What is CVE-2020-5362?

Dell platforms are affected by an improper authorization vulnerability in the Dell Manageability interface.
Unauthorized actors with local system access and OS administrator privileges can bypass BIOS Administrator authentication.

The Impact of CVE-2020-5362

CVSS Base Score: 7.1 (High)
Attack Vector: Local
Attack Complexity: Low
User Interaction: Required
Availability Impact: High
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Scope: Changed

Technical Details of CVE-2020-5362

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows unauthorized actors to reset BIOS Setup configuration to default values by bypassing BIOS Administrator authentication.

Affected Systems and Versions

Affected Product: Dell Client Consumer and Commercial platforms
Vendor: Dell
Affected Version: Link to Dell support article for version details

Exploitation Mechanism

Unauthorized actors need local system access with OS administrator privileges to exploit this vulnerability.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-5362.

Immediate Steps to Take

Ensure BIOS Administrator authentication is properly configured and monitored.
Limit local system access to authorized personnel only.
Regularly monitor and audit BIOS configuration changes.

Long-Term Security Practices

Implement least privilege access controls to restrict unauthorized changes.
Keep systems up to date with the latest security patches and firmware updates.

Patching and Updates

Dell may release patches or updates to address this vulnerability. Stay informed through official Dell support channels for remediation steps.