SCADA Attack Code Released For 35 Vulnerabilities

Systems from Siemens, Iconics, 7-Technologies, and DATAC have security holes in their supervisory control and data acquisition software, leading the Industrial Control Systems Cyber Emergency Response Team to issue security warnings.

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Prepare to secure your SCADA software. On Monday, security researcher Luigi Auriemma posted to
Bugtraq
full-disclosure advisories and detailed proof-of-concept attacks for 35 vulnerabilities in supervisory control and data acquisition systems (SCADA). Auriemma said he discovered the bugs during part of a quick experiment he conducted several months ago.
The vulnerable systems include Siemens Tecnomatix FactoryLink 8.0.1.1473 (six vulnerabilities, though one is DOS-only), Iconics Genesis32 and Genesis64 10.51 (13 vulnerabilities), 7-Technologies IGSS -- Interactive Graphical SCADA System -- 9.00.00.11059 (8 vulnerabilities), and DATAC RealWin 2.1 (8 vulnerabilities). US-CERTs
Industrial Control Systems
Cyber Emergency Response Team released four related security bulletins.
In particular, the Siemens software can be made to download a file, raising the possibility of a
remote code execution attack
. In addition, the IGSS software is vulnerable to
arbitrary file execution
. Most of the other detailed vulnerabilities involve buffer overflows and other threats which, according to experts cited by
Wired News
, pose little danger except the threat of a system crash.
But in an email interview, Auriemma disputed that assessment -- which he ascribed to an Iconics employee -- and noted that the buffer overflow bugs could be used to execute arbitrary code. “My code demonstrates that code execution is possible and... allows anyone to become [an] administrator on the vulnerable systems,” he said.
Industrial control systems -- aka SCADA software -- operate in everything from food processing plants and airports to chemical refineries and nuclear plants, and the market is growing. According to Frost & Sullivan,
SCADA market revenues
are due to rise from $4.6 billion in 2009 to almost $7 billion in 2016.
But are SCADA vendors paying sufficient attention to the security of their software? For years, security experts have been warning that too much industrial control software relies on security by obscurity -- that is, assuming that attackers wont have the requisite wherewithal or knowledge to break into the software, or that the software wouldnt reside on a network. But as networked environments have become the norm, even in
critical infrastructure
environments, SCADA software -- which may have a lifespan of 10 years or more -- can be a security weak point.
The emergence last year of
Stuxnet
, in particular, demonstrated that network-born threats could not only infect control system PCs, but damage physical equipment.
As Auriemma highlights in his bug disclosure, the security issue is simple: Software is software, no matter where its running or what its controlling. In technical terms the SCADA software is just the same as any other software used everyday, so with inputs -- in this case they are servers so the input is the TCP/IP network -- and vulnerabilities: stack and heap overflows, integer overflows, arbitrary commands execution, format strings, double and arbitrary memory frees, memory corruptions, directory traversals, design problems and various other bugs, he said.
Updated 3/24/2011

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SCADA Attack Code Released For 35 Vulnerabilities