Firefox, IE vulnerable to fake login pages?
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Flaw could enable attackers to compromise usernames and passwords, security researcher warns, citing exploit on MySpace.
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Attackers can trick browsers into releasing password information.
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Microsoft has confirmed the existence of a vulnerability affecting the Windows Shell. The issue exists in the WebViewFolderIcon ActiveX control, and exploitation could result in an attacker gaining the same rights as a local user.
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Security researchers have uncovered a spoofing flaw in Internet Explorer that could turn out to be the perfect holiday gift for scammers.
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Opinion: Internet Explorer is insecure junk, and it&#39;s time for Windows users to move to Firefox if they want to protect their systems.
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Ten security flaws found in Firefox browser, Thunderbird e-mail client.
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Hackers can drop malicious code into systems running Firefox when the browser is armed with Google Toolbar, Yahoo Toolbar, or other add-ons.
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(InfoWorld) - A flaw in Mozilla Corp.'s Firefox browser makes it easy for cybercriminals to steal user information on Web sites where users create their own pages, such as MySpace.com. The flaw lies in Firefox's Password Manager software, which can be tricked into sending password information to an attacker's Web site, said Robert Chapin, president of Chapin Information Services Inc. For this attack to work, attackers need to be able to create HTML (Hypertext Markup Language) forms on the Web site, something that is allowed on blogging and social networking sites. The attack was used in aÂ MySpace phishing attack reported in late October. In that attack, users registered a MySpace account named login_home_index_html and used it to host a fake log-in page that exploited the flaw. This page sent MySpace username and password information to another Web site, and MySpace users who visited the page using Firefox could have easily had their information compromised, said Chapin. Firefox developers rate this bug critical, according to an entry in the project's Bugzilla database. The flaw arises because Firefox's Password Manager does not perform a thorough enough check when it is deciding whether to send password information, and then does not ensure that password information is being sent to the server that requested it, Chapin said. In the MySpace attack, for example, Firefox would check to see if the form was coming from the MySpace.com domain, but did not make sure that the password information was being sent back to a MySpace server. "From a programming point of view, this is almost like a typo," he said. "Ironically I think that's why it hasn't been discovered until now. It was just way too obvious." Chapin has posted an analysis of this type of attack, which he has dubbed a Reverse Cross-Site Request, as well as a demonstration of how it works . Microsoft Corp.'s Internet Explorer (IE) is also susceptible to these type of attacks because, like Firefox, it does not ensure that password information is being sent to the same server that requests it, Chapin said. But IE is less likely to be tricked because it does a more thorough job in checking to see where the log-in form is coming from before it automatically submits password and user information, he added. Â
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Four new unpatched vulnerabilities have been published for Internet Explorer and Firefox, with two coming for each browser.
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Critical Opera and Firefox bugs menace IE-refuseniks There's bad news for users of alternative browsers this Friday, with both Opera and Firefox subject to security vulnerabilities.â¦
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A zero-day flaw in Firefox and third-party Windows patches turn up the heat for Net users. Plus: Buyout boom in security.
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A wave of bugs in the plug-in technology used by Microsoft's Internet Explorer (IE) browser has some security experts, including those at US-CERT, recommending that users disable all ActiveX controls.The U. S. Computer Emergency Readiness Team (US-CERT), part of the federal government's Department of Homeland Security, put it bluntly in advisories posted in the last two days: encourages users to disable ActiveX controls as described in the Securing Your Web Browser document," the organization recommended.US-CERT's advice was prompted by multiple vulnerabilities in high-profile ActiveX components used by members of the popular Facebook and MySpace social networks, as well as users of Yahoo's music services.Three new vulnerabilities in the photo uploader software used by both Facebook and MySpace were disclosed Monday by researcher Elezar Broad, who on Monday also posted sample attack code for a pair of critical bugs in Yahoo's Music Jukebox.Last week, Broad had pinned the Facebook and MySpace ActiveX controls with two other flaws. All five of the Facebook/MySpace vulnerabilities originated with an ActiveX control developed by Aurigma.As the number of vulnerabilities mounted, security professionals began ringing the alarm. On Monday, for instance, Symantec analysts urged users to "use caution when browsing the Web" and told IT administrators to disable the relevant ActiveX controls by setting several "kill bits" in the Windows registry.US-CERT, however, offered up more aggressive advice as it recommended users move IE's security level to the "High" setting, which completely disables all ActiveX controls.Setting IE's security level to 'High' disables all ActiveX controls. To get here, select Internet Options from the Tools menu, then click on the Security tab. Click Internet at the top for the zone, then move the slider up to the maximum."That's the easiest way to protect yourself," agreed Oliver Friedrichs, director of Symantec's security response group. "But it can also have an adverse impact on your browsing experience." A compromise, said Friedrichs, would be to disable "only those plug-ins that pose a current and imminent threat," such as the flawed ActiveX controls used by Facebook, MySpace and Yahoo.Disabling individual ActiveX controls, however, requires editing the Windows registry, a task too scary for most consumers to contemplate.Not so in business. "That approach is hard to argue against in the enterprise," said Friedrichs, who noted that there are tools available that let corporate IT administrators push registry changes -- including new keys that disable specific ActiveX controls -- to all users.The SANS Institute's Internet Storm Center (ISC) acknowledged that setting kill bits is beyond the ken of most users; one of its researchers came up with a graphical interface-based tool that sets and clears the kill bits of six ActiveX controls that have been tagged with bugs in the past week. The free tool can be downloaded from the ISC's Web site.The SANS Institute's free 'kill bit' tool provides checkbox-simple settings to disable half a dozen ActiveX controls. It's much easier than monkeying with the Windows registry."This is an easy way to disable the ActiveX control [for people] who don't know how to modify the keys directly," said Friedrichs.As if to emphasize the seriousness of the ActiveX problem, Friedrich's team warned customers Monday that attack code targeting one of the two Yahoo Music Jukebox bugs was on the loose. "Just one day after the proof of concept was released, in-the-wild exploitation was identified in our crawler honeypots," Patrick Jungles, a Symantec analyst, said in an alert to customers of the company's DeepSight threat network.Browser plug-in problems are anything but rare, said Friedrichs. "In the first half of 2007, Symantec counted 237 plug-in vulnerabilities. That's compared to 108 in all of 2006." The vast majority of those bugs -- 89 percent in fact -- were in ActiveX controls, making IE by far the most popular target for plug-in exploits.Last week, Facebook and MySpace said that they had come up with fixes for the vulnerabilities Broad had initially spotted, saying through a spokeswoman that they were "working to individually alert users of any additional steps that need to be taken to ensure user security." The two companies did not immediately respond to queries Tuesday about the newest bugs, however.As of mid-day Tuesday, Yahoo had not yet replied to questions posed the day before concerning the Yahoo Music Jukebox flaws.
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Blog: Patches include the Firefox portion of the IE-Firefox flaw identified last week.
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DECEMBER 20, 2004 (IDG NEWS SERVICE) - SAN FRANCISCO -- A newly reported security problem in Microsoft Corp.&#39;s Internet Explorer Web browser allows attackers to create a fake Web site that looks exactly like a genuine site.
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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.
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InfoWorld - A flaw in the pop-up blocker of the open-source browser Firefox could allow an attacker to access local files, according to security analysts.
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In brief Exploit circulating for unpatched vuln