CVE-2020-11704 : Exploit Details and Defense Strategies

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. The Admin Web Interface has Multiple Stored and Reflected XSS vulnerabilities.

Understanding CVE-2020-11704

This CVE identifies security vulnerabilities in the ProVide (formerly zFTPServer) Admin Web Interface.

What is CVE-2020-11704?

The CVE-2020-11704 vulnerability involves Multiple Stored and Reflected XSS in the Admin Web Interface of ProVide (formerly zFTPServer) through version 13.1.

The Impact of CVE-2020-11704

These vulnerabilities allow attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-11704

The technical aspects of the CVE-2020-11704 vulnerability are as follows:

Vulnerability Description

GetInheritedProperties is Reflected via the groups parameter.
GetUserInfo is Reflected via POST data.
SetUserInfo is Stored via the general parameter.

Affected Systems and Versions

Product: ProVide (formerly zFTPServer)
Versions affected: Through 13.1

Exploitation Mechanism

The vulnerabilities can be exploited by injecting malicious scripts through specific parameters in the Admin Web Interface.

Mitigation and Prevention

Protect your systems from CVE-2020-11704 with the following measures:

Immediate Steps to Take

Update ProVide (formerly zFTPServer) to the latest version.
Implement input validation to sanitize user inputs.
Monitor and restrict user access to sensitive functions.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users on safe browsing habits and phishing awareness.

Patching and Updates

Stay informed about security updates and patches released by the vendor.