Command injection in qBittorrent

Published: 2019-07-18 | Updated: 2019-08-27

Risk	High
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2019-13640
CWE-ID	CWE-77
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	qBittorrent Client/Desktop applications / Other client software
Vendor	qbittorrent.org

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Command Injection

EUVDB-ID: #VU20394

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-13640

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to the "Application::runExternalProgram()" function in "app/application.cpp" allows command injection via shell metacharacters in the torrent name parameter. A remote attacker can inject arbitrary commands via a crafted name within an RSS feed and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

qBittorrent: 0.9.2 - 4.1.6

CPE2.3

External links

https://lists.opensuse.org/opensuse-security-announce/2019-08/msg00080.html
https://github.com/qbittorrent/qBittorrent/issues/10925

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.