New IE hole could perfect phishing scams

A newly reported security problem in Microsoft's Internet Explorer (IE) Web browser allows attackers to create a fake Web site that looks exactly like a genuine site.

The vulnerability lets an attacker display any Web site while the address bar in IE will display a trusted Web address, for example https://www.paypal.com/, and even show the icon indicating SSL (Secure Socket Layer) security, security researchers warned on Thursday.

The issue could result in more sophisticated phishing scams, a prevalent type of online attack that typically combines spam e-mail messages and Web pages that look like legitimate e-commerce sites to steal sensitive information such as user names, passwords and credit card numbers.

The problem was discovered by a security researcher from the Greyhats Security Group and reported on Thursday by Danish security company Secunia. The vulnerability lies in an ActiveX control in IE and has been found to affect version 6.0 of the browser running on Windows XP with Service Pack 2 and earlier versions, according to a Secunia advisory.

Microsoft is investigating the report, a company spokeswoman said Friday. "We have not been made aware of any attacks attempting to use the reported vulnerabilities or customer impact at this time, but we are aggressively investigating the public reports," she said.

Upon completion of this investigation, Microsoft may provide a security fix through its monthly release process or as an out-of-cycle security update, she said. Meanwhile, Secunia suggests users protect themselves by disabling ActiveX in IE or setting the IE security level to "high" for the Internet zone.

Banks are trying to combat phishing by educating consumers. Citibank, for example, on its Web site warns customers not to click on links in e-mail messages. Also, Citibank advises customers to manually enter the Web address for the bank in a Web browser to make sure they are dealing with Citibank and not a scammer.

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Joris Evers

IDG News Service
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