ESB-2018.1446 - [Win] Rockwell Automation Arena: Denial of service - Remote with user interaction 2018-05-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1446
     Rockwell Automation Arena patches crash when opening invalid file
                                11 May 2018

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        AusCERT Security Bulletin Summary
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Product:           Rockwell Automation Arena
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8843  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-18-130-02

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Advisory (ICSA-18-130-02)

Rockwell Automation Arena

Original release date: May 10, 2018

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/.

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1. EXECUTIVE SUMMARY

  * CVSS v3 5.5
  * Vendor: Rockwell Automation
  * Equipment: Arena
  * Vulnerability: Use After Free

2. RISK EVALUATION

Successful exploitation of this vulnerability could cause the software
application to crash.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Arena, simulation software for manufacturing, are
affected:

  * Arena versions 15.10.00 and prior.

3.2 VULNERABILITY OVERVIEW

3.2.1 USE AFTER FREE CWE-416

A use after free vulnerability caused by processing specially crafted Arena
Simulation Software files may cause the software application to crash,
potentially losing any unsaved data.

CVE-2018-8843 has been assigned to this vulnerability. A CVSS v3 base score of
5.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:N
/I:N/A:H).

3.3 BACKGROUND

  * Critical Infrastructure Sectors: Critical Manufacturing
  * Countries/Areas Deployed: Worldwide
  * Company Headquarters Location: Wisconsin, USA

3.4 RESEARCHER

Ariele Caltabiano, working with Trend Micro?s Zero Day Initiative, reported
this vulnerability to NCCIC.

4. MITIGATIONS

Rockwell Automation encourages affected users to upgrade to the latest version
of Arena software, v15.10.01 or later, which can be obtained from (login
required):

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1073588

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
Strategies.

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. This
vulnerability is not exploitable remotely. High skill level is needed to
exploit.


Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http://
ics-cert.us-cert.gov 
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

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