In qBittorrent before 4.1.7, the function Application::runExternalProgram() located in app/application.cpp allows command injection via shell metacharacters in the torrent name parameter or current tracker parameter, as demonstrated by remote command execution via a crafted name within an RSS feed.

Miguel Onoro reported that qbittorrent, a bittorrent client with a Qt5 GUI user interface, allows command injection via shell metacharacters in the torrent name parameter or current tracker parameter, which could result in remote command execution via a crafted name within an RSS feed if qbittorrent is configured to run an external program on torrent completion.

Update to 4.1.7

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for qbittorrent fixes the following issues :

  - CVE-2019-13640: avoid command injection (boo#1141967)

ID	Name	Product	Family	Severity
135191	Debian DSA-4650-1 : qbittorrent - security update	Nessus	Debian Local Security Checks	critical
129032	Fedora 29 : 1:qbittorrent (2019-ce6c6de3cc)	Nessus	Fedora Local Security Checks	critical
129028	Fedora 30 : 1:qbittorrent (2019-2cb551904b)	Nessus	Fedora Local Security Checks	critical
128143	openSUSE Security Update : qbittorrent (openSUSE-2019-2005)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2019-13640

critical

Tenable Plugins

critical

critical

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