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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1088
          Advisory (ICSA-17-122-02): CyberVision Kaa IoT Platform
                                3 May 2017

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

Product:           CyberVision Kaa IoT Platform
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Mitigation
CVE Names:         CVE-2017-7911  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-17-122-02

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Advisory (ICSA-17-122-02)
CyberVision Kaa IoT Platform
Original release date: May 02, 2017

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/.

CVSS v3 6.3

ATTENTION: Remotely exploitable/low skill level to exploit.

Vendor: CyberVision

Equipment: Kaa IoT Platform

Vulnerability: Code Injection

AFFECTED PRODUCTS

The following version of Kaa IoT Platform, a middleware platform,
is affected:

Kaa IoT Platform, Version 0.7.4, and possibly other versions.

IMPACT

Successful exploitation of this vulnerability could allow for the creation
of files with custom content, movement of files, and execution of arbitrary
OS commands.

MITIGATION

CyberVision's Kaa Project has been unresponsive to multiple contact
requests and has produced no mitigations for this vulnerability.

NCCIC/ICS-CERT recommends that 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.

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. 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 ICS-CERT 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.

No known public exploits specifically target this vulnerability.

VULNERABILITY OVERVIEW

INSUFFICIENT ENCAPSULATION CWE-485

A code injection vulnerability has been identified, which may allow remote
code execution.

CVE-2017-7911 has been assigned to this vulnerability. A CVSS v3
base score of 6.3 has been assigned; the CVSS vector string is
(AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

RESEARCHER

Jacob Baines from Tenable Network Security is credited with the discovery
of this vulnerability.

BACKGROUND

Critical Infrastructure Sector(s): Commercial Facilities, Critical
Manufacturing, Food and Agriculture, Healthcare and Public Health,
Information Technology

Countries Deployed: Worldwide

Company Headquarters Location: Florida, United States

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

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