CVE-2019-14451 Explained : Impact and Mitigation

RepetierServer.exe in Repetier-Server versions 0.8 through 0.91 lacks proper validation of XML data during the upload of a new printer configuration, leading to remote code execution.

Understanding CVE-2019-14451

This CVE highlights a vulnerability in Repetier-Server that allows attackers to execute remote code by uploading a malicious printer configuration.

What is CVE-2019-14451?

The vulnerability in RepetierServer.exe in versions 0.8 through 0.91 of Repetier-Server allows attackers to upload a printer configuration with an "external command" setting, enabling remote code execution.

The Impact of CVE-2019-14451

Exploiting this vulnerability can result in unauthorized remote code execution on affected systems, potentially leading to system compromise and data breaches.

Technical Details of CVE-2019-14451

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

RepetierServer.exe in Repetier-Server 0.8 through 0.91 fails to validate XML data properly when uploading a new printer configuration, creating a security loophole for remote code execution.

Affected Systems and Versions

Repetier-Server versions 0.8 through 0.91 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a printer configuration with an "external command" setting, allowing them to execute remote code. Activation of the external command configuration post-exploitation requires a system reboot or service restart.

Mitigation and Prevention

Protecting systems from CVE-2019-14451 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Repetier-Server to a patched version that addresses the vulnerability.
Monitor system logs for any suspicious activities related to printer configurations.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential breaches.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Regularly apply security patches and updates provided by Repetier-Server to mitigate known vulnerabilities and enhance system security.