CVE-2019-9859 : Exploit Details and Defense Strategies

Vulnerability in Vesta Control Panel (VestaCP) versions 0.9.7 through 0.9.8-23 allows authenticated command execution, potentially leading to remote root access.

Understanding CVE-2019-9859

What is CVE-2019-9859?

Vesta Control Panel (VestaCP) versions 0.9.7 through 0.9.8-23 have a vulnerability that enables authenticated command execution, posing a risk of remote root access on the server.

The Impact of CVE-2019-9859

The vulnerability in VestaCP could allow attackers to execute commands with elevated privileges, potentially compromising the entire server.

Technical Details of CVE-2019-9859

Vulnerability Description

VestaCP versions 0.9.7 through 0.9.8-23 are susceptible to authenticated command execution.
The issue arises from incorrect usage of the escapeshellarg function in VestaCP, leading to multiple instances of vulnerability.

Affected Systems and Versions

Vesta Control Panel versions 0.9.7 through 0.9.8-23

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging authenticated command execution to gain remote root access on the server.

Mitigation and Prevention

Immediate Steps to Take

Update VestaCP to a patched version that addresses the vulnerability.
Monitor server logs for any suspicious activities.

Long-Term Security Practices

Regularly review and update server security configurations.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches and updates provided by VestaCP to mitigate the vulnerability.