CVE-2020-29189 : Exploit Details and Defense Strategies

TerraMaster TOS <= 4.2.06 Incorrect Access Control vulnerability allows remote authenticated attackers to bypass read-only restrictions.

Understanding CVE-2020-29189

This CVE involves a security vulnerability in TerraMaster TOS that enables attackers to gain unauthorized access to folders within the NAS.

What is CVE-2020-29189?

The vulnerability in TerraMaster TOS <= 4.2.06 permits remote authenticated attackers to bypass read-only restrictions, leading to full access to any folder within the NAS.

The Impact of CVE-2020-29189

The vulnerability allows attackers to circumvent security measures and gain unauthorized access to sensitive data stored on the NAS.

Technical Details of CVE-2020-29189

This section provides technical details about the vulnerability.

Vulnerability Description

The Incorrect Access Control vulnerability in TerraMaster TOS <= 4.2.06 enables remote authenticated attackers to bypass read-only restrictions and obtain full access to any folder within the NAS.

Affected Systems and Versions

Affected Product: TerraMaster TOS
Affected Version: <= 4.2.06

Exploitation Mechanism

Attackers can exploit this vulnerability remotely after authenticating, allowing them to bypass read-only restrictions and gain unauthorized access to folders.

Mitigation and Prevention

Protecting systems from CVE-2020-29189 is crucial to prevent unauthorized access and data breaches.

Immediate Steps to Take

Update TerraMaster TOS to the latest version that includes a patch for the vulnerability.
Monitor system logs for any suspicious activities that may indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement strong access control policies to restrict user permissions appropriately.
Regularly audit and review access controls to ensure they align with security best practices.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.