Zero-day vulnerability in QNAP QTS

Improper access control

QNAP reported a security issue involving unauthorized access to the QNAP devices. Several QNAP NAS devices running QTS have been injected with XMR mining programs, specifically from mineXMR.com.

Vulnerability details

Advisory: SB2017050501 - Remote code execution in QNAP QTS

Vulnerable component: QNAP QTS

CVE-ID:

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:U/RC:C

CWE-ID: CWE-284 - Improper Access Control

Description:

The vulnerability allows a remote attacker to compromise vulnerable device.

The vulnerability exists due to unknown error, which leads to QNAP device compromise. Vulnerability details are not disclosed yet.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable device.

Note: the vulnerability is being actively exploited in the wild.

External links:

https://www.qnap.com/en/support/con_show.php?cid=116

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.