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             AUSCERT External Security Bulletin Redistribution

                 Johnson Controls Metasys Vulnerabilities
                               19 March 2015


        AusCERT Security Bulletin Summary

Product:           Johnson Controls Application and Data Server (ADS)
                   Johnson Controls Extended Application and Data Server (ADX)
                   Johnson Controls LonWorks Control Server 85 (LCS8520)
                   Johnson Controls Network Automation Engine (NAE)
                   Johnson Controls Network Integration Engine (NIE)
                   Johnson Controls NxE8500
Publisher:         US-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-5428 CVE-2014-5427 

Original Bulletin: 

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Advisory (ICSA-14-350-02)

Johnson Controls Metasys Vulnerabilities

Original release date: March 17, 2015

Legal Notice

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This advisory was originally posted to the US-CERT secure Portal library on 
December 16, 2014, and is being released to the NCCIC/ICS-CERT web site.

Independent security researcher Billy Rios has identified two vulnerabilities
in Johnson Controls Metasys building management system. Johnson Controls has 
produced patches for each affected release that mitigates these 

These vulnerabilities could be exploited remotely.


The following Johnson Controls products, using Metasys Releases 4.1 to 6.5, 
are affected:

    Application and Data Server (ADS),

    Extended Application and Data Server (ADX),

    LonWorks Control Server 85 (LCS8520),

    Network Automation Engine (NAE) 55xx-x models,

    Network Integration Engine (NIE) 5xxx-x models, and



The impact of these vulnerabilities could allow an unauthenticated remote 
attacker to compromise the confidentiality, integrity, and availability of a 
Metasys system.

Impact to individual organizations depends on many factors that are unique to
each organization. ICS-CERT recommends that organizations evaluate the impact
of these vulnerabilities based on their operational environment, architecture,
and product implementation.


Johnson Controls is a US-based company that maintains offices in several 
countries around the world, including the US, UK, Netherlands, Italy, India, 
Germany, France, Czech Republic, China, and Australia.

Metasys systems provide traditional building control capabilities with 
built-in integration to webbased architecture and wireless technologies. 
According to Johnson Controls, Metasys systems are deployed across several 
sectors including Commercial Facilities and Government Facilities. Johnson 
Controls estimates that these products are used worldwide.




A remote attacker may be able to retrieve the password hash for an authorized
Metasys user with an unauthenticated post request. Retrieved encrypted 
passwords could be used by a remote attacker to compromise the Metasys system.

CVE-2014-5427[b] has been assigned to this vulnerability. A CVSS v2 base score
of 10.0 has been assigned; the CVSS vector string is 


The Metasys system makes web services available to unauthenticated remote 
users that could allow an attacker to upload and execute a shell script to an
arbitrary location on the Metasys system, resulting in the compromise of the 

CVE-2014-5428[e] has been assigned to this vulnerability. A CVSS v2 base score 
of 10.0 has been assigned; the CVSS vector string is 



These vulnerabilities could be exploited remotely.


No known public exploits specifically target these vulnerabilities.


An attacker with a low skill would be able to exploit these vulnerabilities.


Johnson Controls has developed patches for all affected Metasys releases (4.1,
5.x, and 6.x). Metasys releases prior to Release 4.1 are not affected. Metasys
products NxE25/35/45 are also not affected by these vulnerabilities.

The product patches, along with installation instructions, can be obtained 
from any local Johnson Controls branch office or Metasys Authorized Building 
Control Specialists. Johnson Controls recommends that asset owners and 
operators adhere to IT best practices and guidelines described in the 
following Metasys installation documents to further reduce the risk associated
with these vulnerabilities:

    Network and IT Guidance for the IT Professional Technical Bulletin 
(LIT-1201578) available at: 

    Network and IT Guidance for the BAS Professional Technical Bulletin 
(LIT-12011279) available at: 

ICS-CERT encourages asset owners to take additional defensive measures to 
protect against this and other cybersecurity risks.

    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.

ICS-CERT also provides a section for control systems security recommended 
practices on the ICS-CERT web page at: 
http://ics-cert.us-cert.gov/content/recommended-practices. Several recommended
practices are available for reading and download, including Improving 
Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. 
ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

Additional mitigation guidance and recommended practices are publicly 
available in the ICSCERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site 

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to ICS-CERT for 
tracking and correlation against other incidents.

    a. CWE-257: Storing Passwords in a Recoverable Format, 
http://cwe.mitre.org/data/definitions/257.html, web site last accessed March 
17, 2015.

    b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-5427, 
NIST uses this advisory to create the CVE web site report. This web site will
be active sometime after publication of this advisory.

    c. CVSS Calculator, 
http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:C/I:C/A:C, web
site last accessed March 17, 2015.

    d. CWE-434: Unrestricted Upload of File with Dangerous Type, 
http://cwe.mitre.org/data/definitions/434.html, web site last accessed March 
17, 2015.

    e. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-5428, 
NIST uses this advisory to create the CVE web site report. This web site will
be active sometime after publication of this advisory.

    f. CVSS Calculator, 
https://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:C/I:C/A:C, web
site last accessed March 17, 2015.

Contact Information

For any questions related to this report, please contact ICS-CERT at:

Email: ics-cert@hq.dhs.gov

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

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