CVE-2020-5194 : Exploit Details and Defense Strategies
Learn about CVE-2020-5194 affecting Cerberus FTP Server 8, allowing unauthorized zipping and downloading of files. Find mitigation steps and prevention measures here.
Cerberus FTP Server 8 allows an authenticated attacker to misuse the zip API endpoint, enabling unauthorized zipping and downloading of files.
Understanding CVE-2020-5194
This CVE involves a vulnerability in Cerberus FTP Server 8 that allows unauthorized access to zip functionality.
What is CVE-2020-5194?
The zip API endpoint in Cerberus FTP Server 8 permits an authenticated attacker without zip permission to use the zip feature through an unrestricted API endpoint. This occurs due to improper permission verification when accessing the file/ajax_download_zip/zip_name endpoint, allowing users without proper permissions to zip and download files.
The Impact of CVE-2020-5194
The vulnerability enables unauthorized users to perform zipping and downloading actions on files, even if they lack permission to view the files.
Technical Details of CVE-2020-5194
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in Cerberus FTP Server 8 allows authenticated attackers without zip permission to exploit the zip functionality through an unrestricted API endpoint.
Affected Systems and Versions
- Product: Cerberus FTP Server 8
- Vendor: Cerberus
- Versions: All versions are affected
Exploitation Mechanism
Improper permission verification when calling the file/ajax_download_zip/zip_name endpoint allows unauthorized users to zip and download files.
Mitigation and Prevention
Protect your systems from the CVE-2020-5194 vulnerability with these mitigation strategies.
Immediate Steps to Take
- Apply the latest security patches from Cerberus FTP Server.
- Restrict access to the zip API endpoint to authorized users only.
- Monitor zip activities for any unauthorized zipping and downloading.
Long-Term Security Practices
- Regularly review and update user permissions to prevent unauthorized access.
- Conduct security training for users to raise awareness of proper data handling.
Patching and Updates
Ensure timely installation of security patches and updates provided by Cerberserver FTP to address the vulnerability.