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AUSCERT External Security Bulletin Redistribution
A vulnerability has been identified in Johnson Controls Metasys and BCPro
1 August 2018
AusCERT Security Bulletin Summary
Product: Johnson Controls Metasys System
Johnson Controls BCPro (BCM)
Operating System: Windows
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
CVE Names: CVE-2018-10624
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Johnson Controls Metasys and BCPro
Original release date: July 31, 2018
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1. EXECUTIVE SUMMARY
CVSS v3 4.3
ATTENTION: Exploitable on an adjacent network/low skill level to exploit
Vendor: Johnson Controls
Equipment: Metasys and BCPro
Vulnerability: Information Exposure Through an Error Message
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to
obtain technical information about the Metasys or BCPro server, allowing an
attacker to target a system for attack.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Johnson Controls reports that the vulnerability affects the following
Metasys System, Versions 8.0 and prior, and
BCPro (BCM), all versions prior to 3.0.2
3.2 VULNERABILITY OVERVIEW
3.2.1 INFORMATION EXPOSURE THROUGH AN ERROR MESSAGE CWE-209
This vulnerability results from improper error handling in HTTP-based
communications with the server, which could allow an attacker to obtain
CVE-2018-10624 has been assigned to this vulnerability. A CVSS v3 base score
of 4.3 has been calculated; the CVSS vector string is
CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Milwaukee, Wisconsin
Dan Regalado of Zingbox reported this vulnerability to NCCIC.
Johnson Controls recommends the following mitigations:
This issue was remediated in Metasys v8.1 (April, 2016). Users should upgrade
to the latest product version (9.0). For Metasys information, contact your
Metasys field service/sales representative.
This issue was remediated in the BCPro Workstation in BCPro v3.0 (October,
2017) and mitigated for the BACnet Router and Gateway in BCPro v3.0.2 (June,
2018). Users should upgrade to the latest product versions. For more BCPro
information, contact your BCPro sales and support representative.
Additional information for Johnson Controls:
Product security contact information, Building Automation System hardening,
and security resources are located at our product security website
Contact information: Johnson Controls Global Product Security at
NCCIC recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
Minimize network exposure for all control system devices and/or systems, and
ensure that they are not accessible from the Internet.
Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize that VPN is only
as secure as the connected devices.
NCCIC reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended
practices on the ICS-CERT web page. Several recommended practices are
available for reading and download, including Improving Industrial Control
Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly
available on the ICS-CERT website in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to NCCIC for
tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
For any questions related to this report, please contact the NCCIC at:
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information:
or incident reporting: https://ics-cert.us-cert.gov/Report-Incident?
The NCCIC continuously strives to improve its products and services. You can
help by choosing one of the links below to provide feedback about this
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