SCADA alert: Fixes are in the works

Recent security breaches are being dealt with by suppliers having problems with SCADA vulnerabilities

10/03/2011


Wheels are starting to churn at three suppliers suffering from SCADA vulnerabilities. Rockwell, AzeoTech and Measuresoft all are working on or provided fixes for their individual problems. There is an overflow vulnerability with proof-of-concept (PoC) exploit code affecting the Rockwell RSLogix 5000, Version 19. Services running on Port 4446 are vulnerable to a memory overflow, according to a researcher on the ICS-CERT report.

ICS-CERT reached out to the affected vendor to notify, confirm, and identify mitigations. Rockwell has released the following advisories:

The Rockwell RSLogix family is a group of ladder logic programming packages that operates on Microsoft Windows operating systems. RSLogix 5000 supports the Allen-Bradley ControlLogix and GuardLogix family of programmable controllers.

Rockwell Automation is aware of this vulnerability and plans to release a software patch within 14 days. In order to prevent traversal of RNA messages in and out of the ICS system, Rockwell recommends configuring firewalls to block the following TCP ports:

  • 1330
  • 1331
  • 1332
  • 4241
  • 4242
  • 4446
  • 6543
  • 9111
  • 60093
  • 49281

Rockwell also recommends users evaluate firewall configurations to ensure other appropriate inbound and outbound traffic is blocked.

MITRE assigned number CVE-2011-3489 to this vulnerability.

Meanwhile, a one stack overflow vulnerability with PoC exploit code is affecting AzeoTech DAQFactory, a SCADA/HMI product. The vulnerability is exploitable via a service running on Port 20034/UDP, according to a researcher in an ICS-CERT report. ICS-CERT worked with AzeoTech, which produced an upgrade that resolves the vulnerability. ICS-CERT has not validated the upgrade.

This vulnerability only affects DAQFactory Version 5.85, AzeoTech said.

This stack overflow vulnerability could allow an attacker to cause a denial of service or remotely execute code on the targeted system.

DAQFactory is a SCADA and HMI software used in multiple industries including water, power, and manufacturing. DAQFactory installations are primarily in the United States and Europe.

DAQFactory listens on Port 20034/UDP by default. An attacker can send specially crafted traffic to this port to cause a stack overflow, which may allow remote code execution.

MITRE assigned number CVE-2011-3492 to this vulnerability in the Common Vulnerabilities and Exposures (CVE) database.

AzeoTech eliminated the vulnerable feature in the next version (Version 5.86). The company did not document the feature, so AzeoTech does not believe any of their customers were using it. Therefore, its removal should not adversely affect any DAQFactory users.

AzeoTech provides the following instructions to upgrade to Version 5.86: Existing customers can download and install the DAQFactory trial from the website over their existing installation at no charge. The user’s license remains maintained. Because this is the standard update path for DAQFactory, most customers will be familiar with the process.

For Measuresoft, there were three vulnerabilities with PoC exploit code affecting its Measuresoft ScadaPro product. The vulnerabilities include a stack buffer overflow, an insecure method call, and a path traversal, which are all remotely exploitable through Port 11234/UDP.

Measuresoft created a fix that resolves these vulnerabilities. The fix resolves the vulnerabilities. The vulnerabilities affected ScadaPro Version 4.0.0.0 and earlier.

The stack overflow vulnerability could allow an attacker to cause a denial of service or to remotely execute code on the affected machine. The insecure method call and the path traversal vulnerabilities could allow information leakage.

ScadaPro is a SCADA system used in the power generation, oil and gas, pharmaceuticals, and manufacturing sectors. ScadaPro’s product is in operation in multiple countries. Measuresoft Development Ltd.’s headquarters are in Louth, Ireland, with an office in Missouri City, TX.

Measuresoft provided a new version (4.0.1), which is available without cost to all licensed customers who are currently running Version 4.0.0. Measuresoft has resolved the reported issues by disabling Port 11234/UDP by default. Alternative network communication methods are already in place and they will use them instead, Measuresoft said.

Measuresoft said version 4.0.1 of ScadaPro Server is now available for download from the Measuresoft website.

- Edited by Chris Vavra, Plant Engineering, www.plantengineering.com 



The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
Pipe fabrication and IIoT; 2017 Product of the Year finalists
The future of electrical safety; Four keys to RPM success; Picking the right weld fume option
A new approach to the Skills Gap; Community colleges may hold the key for manufacturing; 2017 Engineering Leaders Under 40
Control room technology innovation; Practical approaches to corrosion protection; Pipeline regulator revises quality programs
The cloud, mobility, and remote operations; SCADA and contextual mobility; Custom UPS empowering a secure pipeline
Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Power system design for high-performance buildings; mitigating arc flash hazards
VFDs improving motion control applications; Powering automation and IIoT wirelessly; Connecting the dots
Natural gas engines; New applications for fuel cells; Large engines become more efficient; Extending boiler life

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
The maintenance journey has been a long, slow trek for most manufacturers and has gone from preventive maintenance to predictive maintenance.
This digital report explains how plant engineers and subject matter experts (SME) need support for time series data and its many challenges.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Maintenance Manager; California Oils Corp.
Associate, Electrical Engineering; Wood Harbinger
Control Systems Engineer; Robert Bosch Corp.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me