CVE-2020-9044 - CVE House
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Status published High CVE-2020-9044

Metasys Improper Restriction of XML External Entity Reference

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Lukasz Rupala

Affected Vendor

Johnson Controls

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Affected Software

Metasys Application and Data Server (ADS, ADS-Lite), Metasys Extended Application and Data Server (ADX), Metasys Open Data Server (ODS), Metasys Open Application Server (OAS), Metasys Network Automation Engine (NAE55 only), Metasys Network Integration Engine (NIE55/NIE59), Metasys NAE85 and NIE85, Metasys LonWorks Control Server (LCS), Metasys System Configuration Tool (SCT), Metasys Smoke Control Network Automation Engine (NAE55, UL 864 UUKL/ORD-C100-13 UUKLC 10th Edition Listed)
Vulnerable Versions:
versions 10.1 and prior, version 10.1, versions 9.0.1, 9.0.2, 9.0.3, 9.0.5, 9.0.6, versions 13.2 and prior, version 8.1

Timeline

Official Publish: March 10th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)