Qnap QTS Link Following (CVE-2021-44052)

high Tenable OT Security Plugin ID 502547

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 502547

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 10/16/2024

Updated: 10/16/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2021-44052

CVSS v3

Risk Factor: High

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Vulnerability Information

CPE: cpe:/o:qnap:qts:4.2.6, cpe:/o:qnap:qts:4.3.3, cpe:/o:qnap:qts:4.3.4, cpe:/o:qnap:qts:4.3.6, cpe:/o:qnap:qts:4.5.4, cpe:/o:qnap:quts_hero:h4.5.4, cpe:/o:qnap:qts:5.0.0, cpe:/o:qnap:quts_hero:h5.0.0

Required KB Items: Tenable.ot/Qnap

Exploit Ease: No known exploits are available

Patch Publication Date: 5/5/2022

Vulnerability Publication Date: 5/5/2022

Reference Information

CVE: CVE-2021-44052

CWE: 59

Detections

Analytics