CVE-2020-11940 : What You Need to Know

In nDPI through 3.2 Stable, an out-of-bounds read vulnerability in concat_hash_string in ssh.c can be exploited by a network-positioned attacker sending malformed SSH protocol messages.

Understanding CVE-2020-11940

This CVE identifies a specific vulnerability in nDPI software.

What is CVE-2020-11940?

The CVE-2020-11940 vulnerability in nDPI allows a network-positioned attacker to exploit an out-of-bounds read in the ssh.c file by sending specially crafted SSH protocol messages.

The Impact of CVE-2020-11940

This vulnerability could potentially lead to remote code execution or denial of service if successfully exploited by an attacker.

Technical Details of CVE-2020-11940

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves an out-of-bounds read in the concat_hash_string function within the ssh.c file of nDPI through version 3.2 Stable.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions: n/a

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malformed SSH protocol messages on a network segment monitored by nDPI's library.

Mitigation and Prevention

Protecting systems from CVE-2020-11940 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches or updates promptly.
Implement network segmentation to limit the attack surface.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify weaknesses.
Educate users and IT staff on best security practices.
Implement intrusion detection and prevention systems.
Stay informed about security advisories and updates.

Patching and Updates

Check for patches or updates provided by nDPI to address the vulnerability.
Apply the latest security fixes to ensure protection against potential exploits.