A Search Engine for the Internet’s Dirty Secrets
Google is helping to power a new search engine built on a daily scan of the whole Internet.
A map showing the approximate location of some industrial control systems connected to the Internet, found using the search engine Censys.
Early this week the Austrian security company that more than three million routers, modems, and other devices are vulnerable to being hijacked over the Internet. Instead of giving each device a unique encryption key to secure its communications, manufacturers including Cisco and General Electric had lazily used a much smaller number of security keys over and over again.
That security screwup was discovered with the help of , a search engine aimed at helping security researchers find the Internet’s dirty little secrets by tracking all the devices hooked up to it. Launched in October by researchers at the University of Michigan, it is likely to produce many more hair-raising findings. Google is providing infrastructure to power the search engine, which is free to use.
“We’re trying to maintain a complete database of everything on the Internet,” says , the University of Michigan researcher who leads the open-source project.
Censys searches data harvested by software called that Durumeric developed with Michigan colleagues. Every day Censys is updated with a fresh set of data collected after ZMap “pings” more than four billion of the numerical IP addresses allocated to devices connected to the Internet. Grabbing a fresh set of that data takes only hours.
The data that comes back can identify what kind of device responded, as well as details about its software, such as whether it uses encryption and how it is configured. Searching on Censys for software or configuration details associated with a new security flaw can reveal how widespread it is, what devices suffer from it, who they are operated by, and even their approximate location.
Steve Manzuik, director of security research at , says that Censys should help make the Internet more secure. His researchers used the tool in their investigation of a revealed last week.
Dell had to and rush out remediation tools after Duo showed that the company was putting rogue security certificates on its computers that could be used to remotely eavesdrop on a person’s encrypted Web traffic, for example to intercept passwords. Duo used Censys to find that a Kentucky water plant’s control system was affected, and the Department of Homeland Security stepped in.
Censys was born after Durumeric and colleagues found themselves deluged with requests to run scans to help measure new problems. This March they helped with the response to a major encryption flaw affecting some five million websites including those of Apple, Google, and the FBI (see “”).
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