CVE-2018-19181 Explained : Impact and Mitigation

YUNUCMS 1.1.5 is vulnerable to arbitrary file deletion through a specific file, potentially leading to unauthorized access and data loss.

Understanding CVE-2018-19181

This CVE describes a security issue in YUNUCMS 1.1.5 that allows attackers to delete files using directory traversal techniques.

What is CVE-2018-19181?

Arbitrary file deletion can be achieved in YUNUCMS 1.1.5 through the statics/ueditor/php/vendor/Local.class.php file by exploiting the key parameter in the statics/ueditor/php/controller.php?action=remove endpoint.

The Impact of CVE-2018-19181

The vulnerability allows attackers to delete files, such as the install.lock file, which can lead to unauthorized access, data loss, and potential system compromise.

Technical Details of CVE-2018-19181

YUNUCMS 1.1.5 vulnerability details.

Vulnerability Description

The issue lies in statics/ueditor/php/vendor/Local.class.php, enabling arbitrary file deletion via the controller.php?action=remove key parameter.

Affected Systems and Versions

Product: YUNUCMS 1.1.5
Vendor: n/a
Version: n/a

Exploitation Mechanism

Attackers exploit the key parameter in controller.php?action=remove using directory traversal to delete critical files like install.lock.

Mitigation and Prevention

Protect your system from CVE-2018-19181.

Immediate Steps to Take

Disable access to vulnerable files and directories.
Implement input validation to prevent directory traversal attacks.
Monitor file deletion activities for suspicious behavior.

Long-Term Security Practices

Regularly update and patch the CMS and its components.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users on safe file handling practices.
Implement access controls to limit file deletion permissions.
Consider using security tools to detect and prevent file deletion attacks.

Patching and Updates

Apply patches and updates provided by YUNUCMS to address the vulnerability and enhance system security.