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CVE-2020-9044— Metasys Improper Restriction of XML External Entity Reference

Quick assessment

Affected
Johnson Controls Metasys Application and Data Server (ADS, ADS-Lite)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Johnson Controls Metasys Application and Data Server（ADS）等都是美国江森自控（Johnson Controls）公司的产品。Metasys Application and Data Server是一款应用程序和数据服务器。Metasys Open Data Server（ODS）是一款数据服务器。Metasys Open Application Server（OAS）是一款应用程序服务器。 多款Johnson Controls产品中存在代码问题漏洞。

CVSS 7.5 · High EPSS 1.29% · P69
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I. Basic Information for CVE-2020-9044

Vulnerability Information
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Vulnerability Title
Metasys Improper Restriction of XML External Entity Reference
Source: CVE Program / CVE List V5
Vulnerability Description
XXE vulnerability exists in the Metasys family of product Web Services which has the potential to facilitate DoS attacks or harvesting of ASCII server files. This affects Johnson Controls' Metasys Application and Data Server (ADS, ADS-Lite) versions 10.1 and prior; Metasys Extended Application and Data Server (ADX) versions 10.1 and prior; Metasys Open Data Server (ODS) versions 10.1 and prior; Metasys Open Application Server (OAS) version 10.1; Metasys Network Automation Engine (NAE55 only) versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6; Metasys Network Integration Engine (NIE55/NIE59) versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6; Metasys NAE85 and NIE85 versions 10.1 and prior; Metasys LonWorks Control Server (LCS) versions 10.1 and prior; Metasys System Configuration Tool (SCT) versions 13.2 and prior; Metasys Smoke Control Network Automation Engine (NAE55, UL 864 UUKL/ORD-C100-13 UUKLC 10th Edition Listed) version 8.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
多款Johnson Controls产品代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Johnson Controls Metasys Application and Data Server（ADS）等都是美国江森自控（Johnson Controls）公司的产品。Metasys Application and Data Server是一款应用程序和数据服务器。Metasys Open Data Server（ODS）是一款数据服务器。Metasys Open Application Server（OAS）是一款应用程序服务器。 多款Johnson Controls产品中存在代码问题漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Johnson Controls Metasys Application and Data Server (ADS, ADS-Lite) versions 10.1 and prior -
Johnson Controls Metasys Extended Application and Data Server (ADX) versions 10.1 and prior -
Johnson Controls Metasys Open Data Server (ODS) versions 10.1 and prior -
Johnson Controls Metasys Open Application Server (OAS) version 10.1 -
Johnson Controls Metasys Network Automation Engine (NAE55 only) versions 9.0.1 -
Johnson Controls Metasys Network Integration Engine (NIE55/NIE59) versions 9.0.1 -
Johnson Controls Metasys NAE85 and NIE85 versions 10.1 and prior -
Johnson Controls Metasys LonWorks Control Server (LCS) versions 10.1 and prior -
Johnson Controls Metasys System Configuration Tool (SCT) versions 13.2 and prior -
Johnson Controls Metasys Smoke Control Network Automation Engine (NAE55, UL 864 UUKL/ORD-C100-13 UUKLC 10th Edition Listed) version 8.1 -

II. Public POCs for CVE-2020-9044

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III. Intelligence Information for CVE-2020-9044

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Vendor Advisories for CVE-2020-9044 (1)

IV. Related Vulnerabilities

Same vendor: Johnson Controls
Same weakness: CWE-611

V. Comments for CVE-2020-9044

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