VDB-127155 · CVE-2018-0719 · Qualys 13356

QNAP QTS up to 4.2.6/4.3.3/4.3.4 cross site scripting

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in QNAP QTS up to 4.2.6/4.3.3/4.3.4 (Network Attached Storage Software). This affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in QNAP QTS 4.2.6 build 20180711 and earlier versions, 4.3.3 build 20180725 and earlier versions, and 4.3.4 build 20180710 and earlier versions could allow remote attackers to inject javascript code.

The bug was discovered 09/20/2018. The weakness was published 11/27/2018 (Website). It is possible to read the advisory at qnap.com. This vulnerability is uniquely identified as CVE-2018-0719 since 11/28/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 68 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13356 (QNAP QTS Multiple Vulnerabilties (NAS-201809-20)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-127156.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (QNAP Systems, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/28/2017 🔍
09/20/2018 +296 days 🔍
11/27/2018 +68 days 🔍
11/27/2018 +0 days 🔍
11/28/2018 +1 days 🔍
06/11/2023 +1656 days 🔍

Sourcesinfo

Vendor: qnap.com

Advisory: qnap.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0719 (🔍)
See also: 🔍

Entryinfo

Created: 11/28/2018 07:42
Updated: 06/11/2023 14:39
Changes: 11/28/2018 07:42 (62), 04/15/2020 09:32 (2), 06/11/2023 14:39 (14)
Complete: 🔍
Cache ID: 13:EF9:103

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