CVE-2019-13640 : What You Need to Know

A vulnerability in qBittorrent's Application::runExternalProgram() function allows for command injection, potentially leading to remote command execution.

Understanding CVE-2019-13640

This CVE identifies a security flaw in qBittorrent versions prior to 4.1.7, enabling attackers to execute remote commands through manipulated parameters.

What is CVE-2019-13640?

In qBittorrent before version 4.1.7, a vulnerability in the Application::runExternalProgram() function permits command injection via shell metacharacters in the torrent name or current tracker parameters.

The Impact of CVE-2019-13640

Exploiting this vulnerability can result in remote command execution by an attacker through a specially crafted name within an RSS feed.

Technical Details of CVE-2019-13640

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in qBittorrent's Application::runExternalProgram() function allows for command injection through shell metacharacters in the torrent name or current tracker parameters.

Affected Systems and Versions

Affected versions: qBittorrent versions prior to 4.1.7

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious commands through manipulated parameters.

Mitigation and Prevention

Protecting systems from CVE-2019-13640 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update qBittorrent to version 4.1.7 or later to mitigate the vulnerability.
Avoid downloading torrents from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories and apply patches as soon as they are available.