CVE-2020-29491 Explained : Impact and Mitigation

Dell Wyse ThinOS 8.6 and prior versions have an insecure default configuration vulnerability that could be exploited by a remote attacker to access sensitive information on the local network, potentially compromising thin clients.

Understanding CVE-2020-29491

Dell Wyse ThinOS 8.6 and earlier versions are affected by a critical vulnerability due to insecure default configurations.

What is CVE-2020-29491?

This CVE refers to a security flaw in Dell Wyse ThinOS versions 8.6 and below, allowing remote unauthenticated attackers to potentially access sensitive data on the local network, posing a risk to impacted thin clients.

The Impact of CVE-2020-29491

The vulnerability has a CVSS base score of 10 (Critical) with high impacts on confidentiality, integrity, and availability. Attackers can exploit this flaw without requiring any privileges, leading to severe consequences.

Technical Details of CVE-2020-29491

Dell Wyse ThinOS vulnerability details and affected systems.

Vulnerability Description

CWE-276: Incorrect Default Permissions
Insecure default configuration vulnerability in Dell Wyse ThinOS versions 8.6 and earlier

Affected Systems and Versions

Product: Wyse Proprietary OS (ThinOS)
Vendor: Dell
Versions Affected: Less than 8.6

Exploitation Mechanism

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

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-29491.

Immediate Steps to Take

Update Dell Wyse ThinOS to version 8.6 or higher
Implement network segmentation to limit exposure
Monitor network traffic for any suspicious activities

Long-Term Security Practices

Regularly update and patch all software and firmware
Conduct security assessments and audits periodically
Educate users on security best practices and awareness

Patching and Updates

Apply security patches provided by Dell promptly
Stay informed about security advisories and updates from Dell