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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.2297
         American Auto-Matrix Front-End Solutions Vulnerabilities
                             30 September 2016

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           American Auto-Matrix Building Automation Front-End Solutions
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2308 CVE-2016-2307 

Original Bulletin: 
   http://ics-cert.us-cert.gov/advisories/ICSA-16-273-01-0

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Advisory (ICSA-16-273-01)

American Auto-Matrix Front-End Solutions Vulnerabilities

Original release date: September 29, 2016

Legal Notice

All information products included in http://ics-cert.us-cert.gov are provided
"as is" for informational purposes only. The Department of Homeland Security 
(DHS) does not provide any warranties of any kind regarding any information 
contained within. DHS does not endorse any commercial product or service, 
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For 
more information about TLP, see http://www.us-cert.gov/tlp/.

OVERVIEW

Independent researcher Maxim Rupp has identified a local file inclusion and a
plain text storage of password vulnerabilities in American Auto-Matrixs 
Building Automation Front-End Solutions application. The Aspect-Matrix 
hardware platform was made end of life in 2015 and will no longer receive 
further updates. American Auto-Matrix has produced an update that fixes these
vulnerabilities in the Aspect-Nexus platform.

These vulnerabilities could be exploited remotely.

AFFECTED PRODUCTS

The following Building Automation Front-End Solutions versions are affected:

- - Aspect-Nexus Building Automation Front-End Solutions application versions 
prior to 3.0.0

- - Aspect-Matrix Building Automation Front-End Solutions application all 
versions.

IMPACT

User logins and passwords presented in plain text provide an attacker 
authenticated credentials to all aspects of the system.

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

BACKGROUND

American Auto-Matrix is a US-based company.

The affected product, Building Automation Front-End Solutions application, is
a building automation integration device. According to American Auto-Matrix, 
Building Automation FrontEnd Solutions application is deployed across several
sectors including Commercial Facilities, Critical Manufacturing, Energy, Water
and Wastewater systems, and others. American Auto-Matrix estimates that this 
product is used primarily in the United States.

VULNERABILITY CHARACTERIZATION

VULNERABILITY OVERVIEW

LOCAL FILE INCLUSION [a]

Without authorization, the attacker can read files on the host, including the
configuration file.

CVE-2016-2307 [b] has been assigned to this vulnerability. A CVSS v3 base score 
of 7.5 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). [c]

PLAINTEXT STORAGE OF A PASSWORD [d]

In a file that is accessible without authentication, passwords are presented 
in plain text.

CVE-2016-2308 [e] has been assigned to this vulnerability. A CVSS v3 base score 
of 8.6 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). [f]

VULNERABILITY DETAILS

EXPLOITABILITY

These vulnerabilities could be exploited remotely.

EXISTENCE OF EXPLOIT

No known public exploits specifically target these vulnerabilities.

DIFFICULTY

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

MITIGATION

American Auto-Matrix recommends the following steps:

Download the zip file located at Dealer Toolbox 
(http://www.aamatrix.com/aspect-new-features (link is external)) under Product
Support>Software Updates. Then:

- - Unzip the attached file

- - Install the .aam file through the WebUI under [System Administration > 
System Updates]

Users will then need to reboot the unit in order complete the upgrade process.

ICS-CERT recommends that users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. 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.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

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.

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 
(http://ics-cert.us-cert.gov/).

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-98: Improper Control of Filename for Include/Require Statement in PHP 
Program ('PHP Remote File Inclusion'), 
http://cwe.mitre.org/data/definitions/98.html, web site last accessed 
September 29, 2016.

b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2307, 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, 
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S..., 
web site last accessed September 29, 2016.

d. CWE-256: Plaintext Storage of a Password, 
http://cwe.mitre.org/data/definitions/256.html, web site last accessed 
September 29, 2016.

e. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2308, 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://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S..., 
web site last accessed September 29, 2016.

Contact Information

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

Email: ics-cert@hq.dhs.gov (link sends e-mail)

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

For industrial control systems security information and incident reporting: 
http://ics-cert.us-cert.gov

ICS-CERT continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 
product.

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