Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2018-19945

Severity CVSS v4.0:
Pending analysis
Type:
CWE-22 Path Traversal
Publication date:
31/12/2020
Last modified:
06/01/2021

Description

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x
9.10
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.50 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): Complete

Base Score 2.0
8.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* 4.3.4 (including) 4.3.4.0899 (excluding)
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* 4.3.5 (including) 4.3.6.0895 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools