CVE-2020-11703 : Security Advisory and Response

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. /ajax/GetInheritedProperties allows HTTP Response Splitting via the language parameter.

Understanding CVE-2020-11703

This CVE involves a vulnerability in ProVide that can lead to HTTP Response Splitting.

What is CVE-2020-11703?

The vulnerability in ProVide (formerly zFTPServer) through version 13.1 allows for HTTP Response Splitting through the /ajax/GetInheritedProperties endpoint using the language parameter.

The Impact of CVE-2020-11703

This vulnerability could be exploited by attackers to perform HTTP Response Splitting attacks, potentially leading to various security risks such as injection of malicious content into responses.

Technical Details of CVE-2020-11703

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue lies in the /ajax/GetInheritedProperties endpoint of ProVide, enabling HTTP Response Splitting via the language parameter.

Affected Systems and Versions

Product: ProVide (formerly zFTPServer)
Versions affected: Up to version 13.1

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the language parameter in the /ajax/GetInheritedProperties endpoint to insert malicious content into HTTP responses.

Mitigation and Prevention

Protecting systems from CVE-2020-11703 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Monitor network traffic for any signs of exploitation.
Consider implementing web application firewalls to filter and block malicious requests.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate developers and administrators on secure coding practices.

Patching and Updates

Check for security advisories from the vendor regularly.
Apply patches or updates provided by ProVide to fix the HTTP Response Splitting vulnerability.