CVE-2021-42875 : What You Need to Know

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in the function setDiagnosisCfg of the file lib/cste_modules/system.so to control the ipDoamin.

Understanding CVE-2021-42875

This CVE involves a remote command injection vulnerability in TOTOLINK EX1200T V4.1.2cu.5215, allowing attackers to control the ipDoamin.

What is CVE-2021-42875?

The vulnerability lies in the function setDiagnosisCfg of the file lib/cste_modules/system.so in TOTOLINK EX1200T V4.1.2cu.5215, enabling remote command injection.

The Impact of CVE-2021-42875

Attackers can exploit this vulnerability to execute arbitrary commands remotely.
Unauthorized control over the ipDoamin can lead to serious security breaches.

Technical Details of CVE-2021-42875

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability allows unauthorized remote command execution in TOTOLINK EX1200T V4.1.2cu.5215 through the function setDiagnosisCfg.

Affected Systems and Versions

Affected System: TOTOLINK EX1200T V4.1.2cu.5215
Affected Version: 4.1.2cu.5215

Exploitation Mechanism

The vulnerability can be exploited by sending crafted commands through the ipDoamin control.

Mitigation and Prevention

Protect your system from CVE-2021-42875 with these measures.

Immediate Steps to Take

Disable remote access to the vulnerable system.
Apply any available security patches provided by the vendor.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch system software to prevent vulnerabilities.
Implement network segmentation to restrict access to critical systems.

Patching and Updates

Check the vendor's website for patches and updates regularly.
Apply security updates promptly to protect against known vulnerabilities.