Unholy trinity of flaws put Google users at risk
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Doomwatchers count the ways If you use Google to send email, organize photos or help administer your website, doomwatchers have cataloged three new ways to steal your data and compromise the security of your users. All three of the techniques rely on cross site scripting, or XSS, in which hackers inject unauthorized code by making it appear as if it's hosted by the website being targeted.â¦
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Faced with ultimatum, Google finally responds Google researchers have at last responded to a hacker who says he's uncovered more than 40 YouTube flaws that put users at risk.â¦
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Ten security flaws found in Firefox browser, Thunderbird e-mail client.
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Google is working to fix a bug in the Google Toolbar that could allow criminals to steal data or install malicious software on a system, a security researcher warned Tuesday.The flaw lies in the mechanism Google Toolbar uses to add new buttons on the browser. Because the toolbar does not perform adequate checks when new buttons are being installed, a hacker could make his button appear as though it was being downloaded from a legitimate site when in fact it came from somewhere else. By spoofing the origin of the toolbar button, an attacker could download malicious files or launch a phishing attack against the victim, wrote security researcher Aviv Raff in a blog post on the issue.Raff has posted proof of concept code, showing how such an attack would work with the Internet Explorer browser. A Google spokeswoman confirmed Tuesday that the company is working to fix the problem.The attack requires many steps. First, the victim would have to be tricked into clicking on a Web link that would then pop up a window asking the user if he wants to install a custom button on his toolbar. Because of the flaw, this alert could look like it was downloading the button from a legitimate site, such as Google.com, even if it were not. Once the button was installed on the toolbar, the victim would then have to click on it and, finally, agree to download and run an executable file for the malicious software to be installed.Because the user would have to go through so many steps in order to fall victim to the attack, the bug isn&#39;t a critical one, said Marc Maiffret, an independent security researcher. &quot;While it is interesting, it&#39;s probably a low threat compared to other flaws out there,&quot; he said.Still, it was sloppy work on Google&#39;s part to miss such a simple attack, he said. &quot;They should definitely assess how it slipped through the cracks,&quot; he said.This is not the first obvious Google flaw that Raff has found. Last month, he showed how a simple Web programming error on the Google.com Web site could allow attackers to launch what&#39;s known as a cross-site scripting attack.Because Google&#39;s programmers didn&#39;t properly check the HTML generated by the Google search engine, Raff was able to create a specially crafted Google link that, when clicked by the victim, would trick the browser into running unauthorized scripting code. This type of link could be used to steal the victim&#39;s Google account or conduct phishing attacks, Raff saidThis error was fixed by Google just hours after Raff notified the company of the problem, but a demo of the flaw being exploited can be seen online.
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Beta search app creates vulnerabilities that may threaten your data's security.
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(InfoWorld) - Google quickly patched what security researchers identified Wednesday was a potentially serious cross-site scripting flaw in its popular desktop search and widget application that could leave users vulnerable to outside attack. In a report, researchers at application security software maker Watchfire, based in Waltham, Mass., detailed an existing attack designed to exploit the Google Desktop flaw. Watchfire said the cross-site scripting threat -- which it described as a parasitic virus -- could allow attackers to steal information from affected PCs and track end users' Web browsing habits. Cross-site scripting (XSS) threats typically take advantage of security vulnerabilities in legitimate Web pages to inject malicious content into the browsers of people visiting the URLs or to redirect them to fraudulent sites used in phishing attacks. Like many other XSS threats, the attack currently leveled at Google Desktop uses JavaScript code to deliver its payload. Watchfire experts said the Google Desktop XSS problem was very dangerous for a number of reasons. Among the more serious characteristics is the malicious program's ability to affect clusters of computers connected by Google Desktop's information sharing capabilities. This could allow attackers to spread the attack to new machines or simply steal data from multiple PCs linked by the application. Most enterprises have invested significant amounts of time and money installing security applications to protect against the loss of sensitive data over the last several years, but a Google Desktop attack would circumvent many of those systems, leaving information on corporate desktops running the program open for potential theft. "This attack is almost undetectable, it won't get picked up by any anti-virus system or firewall, and it can be used in a lot of different ways to harm end users," said the director of security research at Watchfire, Danny Allen. "It allows someone using the attack to control all the applications on a computer or access the network to which an affected machine is attached, and it is almost impossible to get rid of." As part of a demonstration of the exploit, Allen showed off how the program could be used to change the version number in the Google Desktop application itself. Doing so could allow attackers to fool users of the desktop search program into believing they have a version of the software that has been fixed for security reasons, when in fact they are still potentially vulnerable. "Some IT security people have dismissed the impact of [cross-site scripting] attacks to a certain extent, but we wanted to highlight the potential damage that something like this could deliver," Allen said. Media representatives at Google said that after Watchfire informed the company of the attack, engineers at the search giant created a patch for the issue that was automatically distributed to Google Desktop users. Google said it has also added a new set of security features to the latest iteration of the product to prevent similar attacks in the future. On Feb. 9, Google launched its newest version of the desktop search program, labeled Desktop 3 Beta. Company representatives said that they have not received any reports of the vulnerability being exploited on end-users' machines. Watchfire researchers said the new security patch appears to fix the flaw and prevent XSS attacks on users of Google Desktop whose systems have been updated. Security analysts considering the problem said it highlighted the need for businesses to look carefully at programs such as Google Desktop that straddle the line between personal and professional PC usage. Although the application may be very useful, and most often gets pulled into the corporate environment by people who use it at home, Google is not a maker of business-grade software and doesn't follow the same security processes as large manufacturers of such products, said John Pescatore, analyst at Gartner. Unlike Microsoft, Oracle, or Sun Microsystems, Google does not publish regular security bulletins or even offer specific details of issues it has already fixed, Pescatore said. This reason, along with the data security issues that can be introduced when Google Desktop isn't configured to bar users from inadvertently sharing search information with outsiders, poses serious questions for corporate IT administrators who must decide whether to allow people to use it in the office, according to the analyst. "The major concern is that while Google isn't an enterprise software vendor, programs it makes, including Google Desktop, are ending up on a lot of enterprise desktops," Pescatore said. "Google doesn't expose how it does patches like Microsoft, so how does an enterprise even know if their users are working with the version that has been fixed?" As malware writers and phishing scheme operators continue to hone their attacks to steal smaller amounts of valuable data from pools of targeted users, and move further away from the massive worm viruses of years past, the IT world will see more XSS threats. "There will be more funded cyber-crime attacks aimed at specific companies and groups of users, and the size of the threats is such, by design, that they won't land on the six o'clock news," Pescatore said. "The perpetrators will continue to increase the volume of these types of threats, and cross-site scripting and targeted phishing will likely be among their favorite formats for doing so." The bug, which was made public Wednesday by Watchfire, has now been fixed. While Google is automatically delivering a patch, Google Desktop users who want to be sure they are running the latest version of the software can download it here. Users should be running version 5.0.701.30540 or later, said Google Spokesman Barry Schnitt. Google was first notified of the problem on Jan. 4 and produced its fix on Feb. 1, a Watchfire spokesman said Wednesday. In addition to its bug fix, Google has added, "another layer of security checks to the latest version of Google Desktop to protect users from similar vulnerabilities in the future," Schnitt said. "We have received no reports that this vulnerability was exploited.â Robert McMillan of IDG News Service contributed to this report.
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People who use public or workplace computers for e-mail, instant messaging and Web searching have a new security risk to worry about: Google's free new tool that indexes a PC's contents for quickly locating data.
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Google plugs security holes in popular desktop search software that could open up data on a PC to intruders.
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Research analysts warn about the danger of using first-generation local search tools from the likes of Google, Microsoft, and others.
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Google has patched a hole in its search engine that could have allowed malicious hackers to modify the content of the Google search results page or silently modify search results.
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Blog: Critical security flaw found in Firefox 2.0 and later versions potentially puts users' systems at risk of a remote attack.
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Google has a problem -- a good one.
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A bug in the Google Toolbar could allow criminals to steal data or install malicious software on a system, a security researcher warns.
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A flaw discovered in Google Desktop Search last year could have opened up users to the risk of having their personal data compromised. However, the issue was fixed within weeks of its discovery.
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(InfoWorld) - Just one day after a security researcher showed how Google'sÂ Firefox toolbar could be exploitedÂ in an online attack, a similar flaw has been discovered in the Google Desktop. On Thursday, Google hacker Robert Hansen posted proof of concept details showing how attackers could use Google Desktop to launch software that had already been installed on the victim's computer. The attack is hard to pull off and could not necessarily be used to install unauthorized software on the victim's PC, but it does illustrate the kind of security issues that arise with Web-based applications, said Hansen, the CEO of Web security consultancy Sectheory.com, and a contributor to the Ha.ckers.org Web site. "When you have third parties writing code that interacts with your browser, it inherently breaks the browser security model," he said. To exploit Hansen's Google Desktop vulnerability, an attacker would first have to launch a successful "man-in-the-middle" attack, somehow placing himself between the victim and Google's servers. This could by done by tricking the victim into logging onto a malicious wireless network, Hansen said. Once this was done, the hacker could launch Hansen's attack by changing the Web pages being delivered to the victim's PC. By returning Web pages that have been doctored with new JavaScript code, the victim could be tricked into clicking onto a malicious link, Hansen said. "When they actually click that mouse button, they're not clicking on the Web page, they're clicking on a link to Google Desktop that actually runs code, " he said. The steps Hansen took to pull off the attack are complex because of the security features that Google has built into its software, he added. "What I've done is combine a lot of different attacks that Google desperately tries to prevent." On Wednesday researcher Christopher Soghoian showed how a man-in-the-middle attack could be used to install malicious software on computers that used a variety of popular Firefox add-ons, including the toolbars from Google, Yahoo, and AOL. Hansen has posted a video showing how this attack could be used to launch Windows HyperTerminal. But it could be used to launch virtually any application that has already been installed on the PC, he said. This isÂ not the first bug in Google Desktop. In February, engineers at WatchfireÂ showed how a flaw in the program's Advanced Search Feature could be used to gain access to data or even run unauthorized software on a victim's computer. Two days after the Watchfire bug was disclosed, Hansen himself showed how attackers couldÂ steal information from Google Desktop usersÂ using what is called an anti-DNS (Domain Name System) pinning attack. Google was not immediately available to comment for this story. Â
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Computer scientists have discovered a potentially serious flaw in Google&#39;s desktop search utility that could allow attackers to steal information.
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A security flaw that could have caused big trouble for Google and its new Desktop Search tool has been fixed, thanks to a Rice University professor and two of his graduate students.