Risk
8/13/2009
09:03 PM
George V. Hulme
George V. Hulme
Commentary
50%
50%

E-Voting Takes Another Hit

A group of computer scientists have shown how voting results, held in electronic voting machines, can be changed using a novel hacking technique. It's yet another reason why we need to have a verifiable, auditable, paper-trail for electronic voting machines.

A group of computer scientists have shown how voting results, held in electronic voting machines, can be changed using a novel hacking technique. It's yet another reason why we need to have a verifiable, auditable, paper-trail for electronic voting machines.The technique they used to change votes, dubbed return oriented programming, was first described by Hovav Shacham, a professor of computer science at UC San Diego's Jacobs School of Engineering. Shacham is also an author of a study that detailed the attack on voting systems presented earlier this week at the 2009 Electronic Voting Technology Workshop / Workshop on Trustworthy Elections (EVT/WOTE 2009).

From a statement:

To take over the voting machine, the computer scientists found a flaw in its software that could be exploited with return-oriented programming. But before they could find a flaw in the software, they had to reverse engineer the machine's software and its hardware-without the benefit of source code.

Essentially, return-oriented programming is a technique that uses pieces of existing system code to exploit the system. In this demonstration, the researchers successfully performed a buffer-overflow.

The team of scientists involved in the study included Shacham, as well as researchers from the University of Michigan and Princeton University. The hacked voting system was a Sequoia AVC Advantage electronic voting machine.

Shacham concluded that paper-based elections are the ay to go. I wouldn't go that far, but he did:

"Based on our understanding of security and computer technology, it looks like paper-based elections are the way to go. Probably the best approach would involve fast optical scanners reading paper ballots. These kinds of paper-based systems are amenable to statistical audits, which is something the election security research community is shifting to."

I'd settle for verifiable paper-based audit trail. Professor Edward Felten, a long-time observer of electronic voting systems also commented:

"This research shows that voting machines must be secure even against attacks that were not yet invented when the machines were designed and sold. Preventing not-yet-discovered attacks requires an extraordinary level of security engineering, or the use of safeguards such as voter-verified paper ballots," said Edward Felten, an author on the new study; Director of the Center for Information Technology Policy; and Professor of Computer Science and Public Affairs at Princeton University.

In February 2008, Felten demonstrated how he was able to access several electronic voting systems at multiple locations in New Jersey.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Dark Reading Tech Digest, Dec. 19, 2014
Software-defined networking can be a net plus for security. The key: Work with the network team to implement gradually, test as you go, and take the opportunity to overhaul your security strategy.
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-8148
Published: 2015-01-26
The default D-Bus access control rule in Midgard2 10.05.7.1 allows local users to send arbitrary method calls or signals to any process on the system bus and possibly execute arbitrary code with root privileges.

CVE-2014-8157
Published: 2015-01-26
Off-by-one error in the jpc_dec_process_sot function in JasPer 1.900.1 and earlier allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted JPEG 2000 image, which triggers a heap-based buffer overflow.

CVE-2014-8158
Published: 2015-01-26
Multiple stack-based buffer overflows in jpc_qmfb.c in JasPer 1.900.1 and earlier allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted JPEG 2000 image.

CVE-2014-9571
Published: 2015-01-26
Cross-site scripting (XSS) vulnerability in admin/install.php in MantisBT before 1.2.19 and 1.3.x before 1.3.0-beta.2 allows remote attackers to inject arbitrary web script or HTML via the (1) admin_username or (2) admin_password parameter.

CVE-2014-9572
Published: 2015-01-26
MantisBT before 1.2.19 and 1.3.x before 1.3.0-beta.2 does not properly restrict access to /*/install.php, which allows remote attackers to obtain database credentials via the install parameter with the value 4.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
If you’re a security professional, you’ve probably been asked many questions about the December attack on Sony. On Jan. 21 at 1pm eastern, you can join a special, one-hour Dark Reading Radio discussion devoted to the Sony hack and the issues that may arise from it.