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China software bug 'makes utilities vulnerable'

New York, June 17, 2011

Software widely used in China to help run weapons systems, utilities and chemical plants has bugs that hackers could exploit to damage public infrastructure, according to the US Department of Homeland Security.

The department issued an advisory on Thursday warning of vulnerabilities in software applications from Beijing-based Sunway ForceControl Technology Co that hackers could exploit to launch attacks on critical infrastructure.

Sunway's products, widely used in China, are also deployed to a lesser extent in other countries including the United States, DHS's Industrial Control Systems Cyber Emergency Response Team said in its advisory.

"These are vulnerabilities that hackers could leverage to cause destruction," said Dillon Beresford, a researcher with private security firm NSS Labs, who discovered the bugs.

The DHS advisory comes amid a wave of high-profile cyberattacks on institutions ranging from the International Monetary Fund to Citigroup and Sony Corp. The attacks focused primarily on stealing data; only in a few instances has critical infrastructure been attacked.   

Last year the Stuxnet computer worm surfaced, targeting industrial control systems manufactured by Siemens.
Security experts widely believe that the worm was built as part of a state-backed attack on Iran's nuclear program.
   
Iran said the worm was used to attack computers at its Bushehr nuclear reactor. There has been widespread speculation that Stuxnet actually damaged the plant, something Iran denies.

Beresford has worked with Sunway, Chinese authorities and the DHS to fix the bugs he found. Sunway has developed software patches to plug the holes, but it could take customers months to install those patches, Beresford said.   

That gives hackers a window of time in which to exploit those vulnerabilities.
 "Customers need to be notified and given proper time to patch," said Beresford, who also discovered security bugs in industrial control management systems from Siemens.

The German company addressed those vulnerabilities in an advisory it released last week. Representatives for Sunway could not immediately be reached for comment.

The Sunway software flaws highlight growing concerns about the safety of supervisory control and data acquisition (SCADA) computer systems that are used to monitor and control processes in a wide variety of facilities, including nuclear power plants, chemical factories, water distribution networks and pharmaceutical plants.   

SCADA systems -- designed before Internet use became widespread -- were not built to withstand Web-based attacks.   

Security systems to deal with Web threats have been bolted on rather than incorporated into SCADA systems, leaving holes that hackers can penetrate.   

Beresford said that there are other vulnerabilities in SCADA systems that have yet to be documented by security experts and plugged by the manufacturers.   

"The point of my putting this information out and getting it into the public domain is so that we can pressure the vendors to actually patch the vulnerabilities instead of sitting on them because these systems are inherently flawed by design," he said. - Reuters




Tags: China | Software | Scada | Sunway |

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