CVE-2020-9044

moderate-risk

Published 2020-03-10

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.

Do I need to act?

0.27% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (20)

Metasys Application And Data Server

Metasys Extended Application And Data Server

Metasys Lonworks Control Server

Metasys Open Application Server

Metasys Open Data Server

Metasys System Configuration Tool

Nae55 Firmware

Nie55 Firmware

Nie59 Firmware

Affected Vendors

Johnsoncontrols

References (4)

Vendor Advisory https://www.johnsoncontrols.com/cyber-solutions/security-advisories

Third Party Advisory https://www.us-cert.gov/ics/advisories/icsa-20-070-05

Vendor Advisory https://www.johnsoncontrols.com/cyber-solutions/security-advisories

Third Party Advisory https://www.us-cert.gov/ics/advisories/icsa-20-070-05

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moderate-risk

Severity 26/34 · High

Exploitability 1/34 · Minimal

Exposure 22/34 · High