CVE-2018-12045 : What You Need to Know

DedeCMS up to version 5.7SP2 has a vulnerability that allows users to upload malicious files, including .php files, through specific pages.

Understanding CVE-2018-12045

DedeCMS through V5.7SP2 allows arbitrary file upload in dede/file_manage_control.php via a dede/file_manage_view.php?fmdo=upload request with an upfile1 parameter.

What is CVE-2018-12045?

This CVE identifies a vulnerability in DedeCMS that permits users to upload any file, including malicious .php files, through a specific page and request.

The Impact of CVE-2018-12045

Attackers can exploit this vulnerability to upload harmful files to the system, potentially leading to further compromise.

Technical Details of CVE-2018-12045

DedeCMS version 5.7SP2 is susceptible to an arbitrary file upload vulnerability through specific page requests.

Vulnerability Description

Users can upload any file, including malicious .php files, by sending a request to "dede/file_manage_view.php?fmdo=upload" with an "upfile1" parameter.

Affected Systems and Versions

Product: DedeCMS
Vendor: N/A
Versions: Up to 5.7SP2

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the request to upload files through the specified page and parameter.

Mitigation and Prevention

Immediate Steps to Take:

Disable file uploads on the affected page.
Implement file type restrictions for uploads.
Regularly monitor and audit file uploads for suspicious activity. Long-Term Security Practices:
Keep DedeCMS and all associated software up to date.
Conduct regular security assessments and penetration testing.
Educate users on safe file handling practices.
Employ web application firewalls to filter and monitor incoming traffic.
Patching and Updates: Stay informed about security patches and updates for DedeCMS to address known vulnerabilities.