CVE-2021-45461 Explained : Impact and Mitigation
Learn about CVE-2021-45461 affecting FreePBX with Rest Phone Apps versions 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41, allowing remote code execution. Update to versions 15.0.20 or 16.0.19 to mitigate risks.
FreePBX, when restapps (aka Rest Phone Apps) versions 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 are installed, allows remote code execution, exploited in December 2021.
Understanding CVE-2021-45461
What is CVE-2021-45461?
FreePBX with specific Rest Phone Apps versions allows remote attackers to execute arbitrary code, leading to potential security risks.
The Impact of CVE-2021-45461
The vulnerability allows remote attackers to execute malicious code on affected systems, potentially leading to unauthorized access or data theft.
Technical Details of CVE-2021-45461
Vulnerability Description
The vulnerability in FreePBX with certain Rest Phone Apps versions allows for remote code execution.
Affected Systems and Versions
- FreePBX with restapps versions 15.0.19.87, 15.0.19.88, 16.0.18.40, 16.0.18.41
Exploitation Mechanism
The vulnerability is exploited remotely, enabling attackers to execute unauthorized code on compromised systems.
Mitigation and Prevention
Immediate Steps to Take
- Update FreePBX to versions 15.0.20 or 16.0.19 to mitigate the vulnerability.
Long-Term Security Practices
- Regularly monitor for security updates and patches for FreePBX.
Patching and Updates
Ensure timely installation of security patches and updates for FreePBX to prevent potential security breaches.