CVE-2020-12066 Explained : Impact and Mitigation

Teeworlds 0.7.x before 0.7.5 allows remote attackers to shut down the server.

Understanding CVE-2020-12066

This CVE identifies a vulnerability in Teeworlds 0.7.x versions that enables remote attackers to disrupt server operations.

What is CVE-2020-12066?

The CVE-2020-12066 vulnerability is found in the CServer::SendMsg function in Teeworlds 0.7.x before version 0.7.5. It can be exploited by remote attackers to shut down the server.

The Impact of CVE-2020-12066

The vulnerability allows malicious actors to remotely disrupt the normal operation of Teeworlds servers, potentially causing denial of service (DoS) incidents.

Technical Details of CVE-2020-12066

Teeworlds 0.7.x before 0.7.5 is affected by this vulnerability.

Vulnerability Description

The issue lies in the CServer::SendMsg function in engine/server/server.cpp, enabling remote attackers to shut down the server.

Affected Systems and Versions

Teeworlds 0.7.x versions before 0.7.5

Exploitation Mechanism

Attackers can exploit this vulnerability remotely to send malicious messages that trigger the shutdown of Teeworlds servers.

Mitigation and Prevention

It is crucial to take immediate action to address and prevent the exploitation of CVE-2020-12066.

Immediate Steps to Take

Update Teeworlds to version 0.7.5 or later to mitigate the vulnerability
Monitor server logs for any suspicious activities
Implement network security measures to restrict unauthorized access

Long-Term Security Practices

Regularly update software and apply security patches promptly
Conduct security audits and penetration testing to identify vulnerabilities
Educate server administrators on best security practices

Patching and Updates

Apply the latest patches and updates provided by Teeworlds to fix the vulnerability