CVE-2019-12803 : Security Advisory and Response

A vulnerability in Hunesion i-oneNet versions 3.0.7 to 3.0.53 and 4.0.4 to 4.0.16 allows attackers to upload a webshell, leading to remote code execution.

Understanding CVE-2019-12803

This CVE involves an unrestricted file upload vulnerability in Hunesion i-oneNet, enabling attackers to execute malicious code remotely.

What is CVE-2019-12803?

The specific upload web module in Hunesion i-oneNet versions 3.0.7 to 3.0.53 and 4.0.4 to 4.0.16 lacks file extension and type verification, enabling attackers to upload a webshell for subsequent remote code execution.

The Impact of CVE-2019-12803

CVSS Base Score: 8.8 (High Severity)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-12803

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers to upload a webshell due to the lack of file extension and type verification in the specific upload web module of Hunesion i-oneNet.

Affected Systems and Versions

Product: i-oneNet
Vendor: Hunesion
Versions Affected: 3.0.7 to 3.0.53, 4.0.4 to 4.0.16

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a webshell, which can then be used for remote code execution, including running system commands.

Mitigation and Prevention

Protect your systems from this vulnerability by following these steps:

Immediate Steps to Take

Update to the latest patched version of Hunesion i-oneNet.
Implement file extension and type verification mechanisms.
Monitor web uploads for suspicious activities.

Long-Term Security Practices

Conduct regular security audits and penetration testing.
Educate users on safe file upload practices.

Patching and Updates

Regularly check for security updates and patches for Hunesion i-oneNet to address known vulnerabilities.