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             AUSCERT External Security Bulletin Redistribution

        Rockwell Automation ControlLogix 5580 and CompactLogix 5380
                                8 May 2017


        AusCERT Security Bulletin Summary

Product:           Rockwell ControlLogix 5580
                   Rockwell CompactLogix 5380
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-6024  

Original Bulletin: 

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Advisory (ICSA-17-094-05)

Rockwell Automation ControlLogix 5580 and CompactLogix 5380

Original release date: May 04, 2017

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CVSS v3 6.8

ATTENTION: Remotely exploitable.

Vendor: Rockwell Automation

Equipment: ControlLogix 5580 and CompactLogix 5380

Vulnerability: Resource Exhaustion


This advisory was originally posted to the NCCIC Portal on April 4, 2017, and
is being released to the NCCIC/ICS-CERT web site.


The following versions of ControlLogix 5580 and CompactLogix 5380, 
programmable automation controllers, are affected:

    ControlLogix 5580 controllers V28.011, V28.012, and V28.013,

    ControlLogix 5580 controllers V29.011,

    CompactLogix 5380 controllers V28.011, and

    CompactLogix 5380 controllers V29.011.


Successful exploitation of this vulnerability could cause the device that the
attacker is accessing to become unavailable.


Rockwell Automation recommends updating to the latest version of ControlLogix
5580 controllers, Version 30.011 or later, which is available at the following

(link is external)

Rockwell Automation recommends updating to the latest version of CompactLogix
5380 controllers, Version 30.011 or later, which is available at the following

(link is external)

For more information on this vulnerability and more detailed mitigation 
instructions, please see Rockwell Automations advisory labeled ControlLogix 
5580 and CompactLogix 5380 Programmable Automation Controller Denial of 
Service, Version 1.0, April 4, 2017, at the following location:

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1041420 (link
is external)

As well as Rockwell Automations security page:

http://www.rockwellautomation.com/security/overview.page (link is external)

ICS-CERT and Rockwell Automation recommend that users take defensive measures
to minimize the risk of exploitation of this vulnerability. Specifically, 
users should:

Block all traffic to EtherNet/IP or other CIP protocol-based devices from
outside the Manufacturing Zone by blocking or restricting access to Port 
2222/TCP and UDP and Port 44818/TCP and UDP using proper network 
infrastructure controls, such as firewalls, UTM devices, or other security 
appliances. For more information on TCP/UDP ports used by Rockwell Automation
Products, see Knowledgebase Article ID 898270 which is available at the 
following location:

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/898270 (link 
is external)

Minimize network exposure for all control system devices and/or systems, 
and help confirm that they are not accessible from the Internet.

Locate control system networks and devices behind firewalls, and use best
practices when isolating them from the business network. The Common Plant-wide
Ethernet (CPwE) guide provides recommendations for deploying a plant-wide 
architecture: Industrial Firewalls within a CPwE Architecture

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 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.

No known public exploits specifically target this vulnerability. High skill 
level is needed to exploit.



This vulnerability may allow an attacker to cause a denial of service 
condition by sending a series of specific CIP-based commands to the 

CVE-2017-6024 has been assigned to this vulnerability. A CVSS v3 base score of
6.8 has been calculated; the CVSS vector string is 


Critical Infrastructure Sectors: Critical Manufacturing, Food and Agriculture,
Transportation Systems, and Water

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Milwaukee, Wisconsin

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