CVE-2021-45839 : Exploit Details and Defense Strategies

This CVE involves the possibility of obtaining the first administrator's hash and other sensitive information on Terramaster F4-210, F2-210 TOS 4.2.X systems by exploiting a specific endpoint.

Understanding CVE-2021-45839

This CVE allows malicious actors to retrieve critical system information by sending a request to a specific endpoint.

What is CVE-2021-45839?

CVE-2021-45839 enables unauthorized access to the first administrator's hash and additional data on Terramaster F4-210, F2-210 TOS 4.2.X systems.

The Impact of CVE-2021-45839

The exploitation of this vulnerability can lead to unauthorized access to sensitive system information, compromising the security and confidentiality of the affected systems.

Technical Details of CVE-2021-45839

This section provides in-depth technical insights into the CVE.

Vulnerability Description

By making a specific request to the /module/api.php?mobile/webNasIPS endpoint, an attacker can extract the first administrator's hash and other valuable data on vulnerable systems.

Affected Systems and Versions

Vendor: Terramaster
Product: F4-210, F2-210 TOS 4.2.X
Version: 4.2.15-2107141517

Exploitation Mechanism

Malicious actors exploit the vulnerability by utilizing the mentioned endpoint to extract critical system information.

Mitigation and Prevention

Protecting systems from CVE-2021-45839 is crucial for ensuring security and data integrity.

Immediate Steps to Take

Disable access to the vulnerable endpoint /module/api.php?mobile/webNasIPS
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update system software and firmware
Implement network segmentation to limit exposure to vulnerabilities

Patching and Updates

Apply patches or security updates provided by Terramaster to address the vulnerability