IE bug lets hackers phish with Google Desktop

A hacker has shown how a bug in Internet Explorer can be used to steal information from Google Desktop users.

A bug in Microsoft's Internet Explorer (IE) browser gives phishers a way to scan the hard drives of Google Desktop users, according to an Israeli hacker. Because of a flaw in the way IE processes Web pages, a malicious Web site could use the attack to steal sensitive information like credit card numbers or passwords from the hard drives of its visitors.

"Google Desktop users who use IE are currently completely exposed," wrote hacker Matan Gillon in an e-mail interview. "An experienced attacker can covertly harvest their hard drives for sensitive information such as passwords and credit card numbers. Since Google also indexes e-mails which can be read in the Web interface itself, it's also possible to access them using this attack."

Gillon has posted an extensive description of how such an attack would work, along with a proof of concept exploit, on his blog at http://www.hacker.co.il/security/ie/css_import.html.

The IE bug concerns the way Microsoft's browser processes Web page layout information using the CSS (Cascading Style Sheets) format. The CSS format is widely used to give Web sites a consistent look and feel, but attackers can take advantage of the way that IE processes CSS to get Google Desktop to reveal sensitive information.

Hackers would first need to trick users into visiting a malicious Web site for the attack to be successful, Gillon said. The attack works with IE 6 and Google Desktop v2, but it may also work on other versions of Microsoft's browser, but it does not work with non-Microsoft browsers like Firefox or Opera, he said.

Users can nullify the attack by turning off JavaScript in their browsers, Gillon said. This can be done by disabling "Active scripting" in IE's Internet Options menu. JavaScript is a popular scripting language used by Web developers to make their sites more dynamic.

Users need to be particularly wary of the Web sites they visit these days, because of a second unpatched IE vulnerability that could be used to take over a user's PC. Hackers posted sample code that exploited this problem over a week ago and Microsoft said that hackers are already using the code in attacks. As with the CSS problem, users must first be tricked into visiting a malicious Web site for this second IE bug to be exploited.

Some security experts believe that Microsoft is in the process of rushing out a patch to fix this problem before these attacks become more widespread. These attacks can also be avoided by disabling JavaScript in IE, or by using an alternative browser.

Microsoft executives were unavailable to comment on the CSS bug, but a spokeswoman for the company's public relations agency said the issue is being investigated. Microsoft is not aware of any attacks resulting from the hole, she said.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Robert McMillan

IDG News Service
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?