A database problem with a U.S. domain name registrar exposed sensitive financial and personal information relating to thousands of domain name registrations, a Dutch company said Friday.
DiscountDomainRegistry.com, of New York, fixed the problem shortly after being notified Thursday, said Nico Vandendries, chief executive officer of Strongwood, a private investigation company based in the Netherlands.
DiscountDomainRegistry.com Chief Executive Officer Alex Brecher said in an e-mail to the IDG News Service that the company is 100 percent positive customer data was not compromised. The "alleged vulnerability," he wrote, was patched within minutes after the company was contacted by Strongwood.
"We're in the midst of investigating these allegations, and we cannot provide detailed information at this time," Brecher wrote.
Erik Ekkelenkamp, a system project engineer with Strongwood, was researching .eu domain names when he clicked a link within DiscountDomainRegistry's site. The link led to an error involving execution rights on a MySQL directory. MySQL is a widely used open-source database program.
A script plus other programming usually unseen was visible that allowed for a connection to the database, which contained credit card numbers, usernames, passwords and other information, Vandendries said.
A DiscountDomainRegistry.com official wasn't initially convinced there was a problem, Vandendries said.
"At first, they didn't believe us until we presented him with his own password," Vandendries said. "And then he knew we were in."
On its Web site, DiscountDomainRegistry.com, founded in 1998, says it registers domain names for $14.99 per year, including those of Fortune 500 companies.
So far, it's believed no one has exploited the error, which may have existed for up to four months, Ekkelenkamp said. DiscountDomainRegistry.com had changed parts of its Web site recently, which may have resulted in the bug, he said.
The damage could have been severe, Vandendries said. The credit card data and personal information from DiscountDomainRegistry.com clients could have been sold, he said.
Further, access to usernames and passwords would have allowed an intruder to change the names and IP (Internet Protocol) addresses associated with Web sites, a method used for so-called "phishing" scams, Vandendries said.
Phishing involves tricking users into visiting a Web site that appears legitimate but actually is a facade. The URL (uniform resource locator) may look authentic but connects to an IP address with a bogus Web site.
The fraudulent Web sites usually have forms for providing sensitive material, such as financial information, which is then directly sent to scammers.
Vandendries estimated it would take "little skill" with MySQL to exploit the bug. "If a bad guy found this leak and had access to the database ... then I'm sure it could have cost millions."
Ekkelenkamp said he received a call last night from the owner of DiscountDomainRegistry.com thanking him.
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