Vulnerability identifier: #VU13191

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7637

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
QNAP Proxy Server
Server applications / Web servers

Vendor: QNAP Systems, Inc.

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

The weakness exists due to incorrect processing of the user’s input data in the certain parameter. A remote attacker can inject and execute arbitrary shell commands with root privileges.

Mitigation
Update to version 1.2.1. or 1.3.0.

Vulnerable software versions

QNAP Proxy Server: 1.0.2 - 1.2.0

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External links
http://www.qnap.com/en/security-advisory/nas-201806-01

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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.