Double MyDoom for Internet Explorer flaw
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A second version of the MyDoom variant that uses a flaw in Internet Explorer has started to spread, antivirus researchers said on Tuesday.
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Two recently disclosed vulnerabilities that affect Internet Explorer 7 and Windows Vista could let hackers nab user data.
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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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On July 10, engineers at Secunia issued a security advisory, rated "Highly Critical," warning Firefox users that their browser could be tricked into executing arbitrary JavaScript code. While Internet Explorer was originally blamed for the ability to trick Firefox, as it turns out, Mozilla admitted today its own browser is to blame, even after a patch was released.
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An exploit discovered yesterday by security consultancy Sunbelt and verified by Microsoft this afternoon involving the Vector Markup Language (VML) library in Windows could potentially affect not only users of Internet Explorer, but also of the current beta of Office 2007.
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roundup Free-roaming source code breeds new Netsky pest. Also: From IE to Opera, browsers are a likely prey.
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A new flaw has been discovered in Microsoft&#39;s Internet Explorer browser that allows malicious users to create fake sites that could lead to new email phishing scams.
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Because Internet Explorer is one of the programs vulnerable to a newly discovered Windows image flaw, it is possible that someone could fall victim to a virus written to exploit it just by visiting a Web site that uses JPEG images.
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A security researcher has found a security bug that could be attacked in Internet Explorer. Mozilla Corp. said it plans to patch the problem in its next Firefox software update.
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(InfoWorld) - With attackers finding new ways to exploit aÂ critical flaw in Internet Explorer, Microsoft Corp. has released a patch for the problem, ahead of its next scheduled round of security updates. The patch fixes a critical vulnerability in the way Internet Explorer renders VML (Vector Markup Language) graphics. Hackers had been exploiting the flaw, which also affectsÂ some versions of Outlook, for more than a week, and in recent days malicious activity had been on the upswing. More information on the update, which was released Tuesday, can be foundÂ here. The out-of-cycle release is unusual, but not unprecedented. Microsoft generally releases its security updates on the second Tuesday of every month, giving system administrators a predictable way to set aside time to test the new software. Occasionally, the company will release patches ahead of time if a flaw is being widely exploited by attackers. In January itÂ patched a critical flaw in the Microsoft Windows Metafile (WMF) image-rendering engine after it became a widespread problem. With attack code that works on the latest version of Windows XP now publicly available, the VML bug is shaping up as a very serious concern for administrators, said Ken Dunham, the director of Verisign Inc.'s iDefense Rapid Response Team. VML attacks have now "dwarfed the WMF activity in the same period of time compared to last year," he said. By Tuesday, more than 3,000 Web sites were already infecting users with malware that exploited the VML bug, according to Dunham. One week into the WMF outbreak last January, iDefense saw about 600 sites exploiting the problem. Security experts also warn that there are many variants of the VML malware, some of which may be missed by security software. Researchers at iDefense are now looking at a dozen possible variations of the VML exploit code and have confirmed the existence of seven variants, Dunham said. "With WMF there wasn't nearly as much modification. We see a lot of different permutations and obfuscation techniques being utilize with VML attacks." AÂ group of security researchers released a patch for the VML flaw late last week, independent of Microsoft, but criminals have even found a way to exploit the fix. In the past few days they have been circulating phoney e-mails, claiming to be a patch for the VML problem. If downloaded, this fake patch actually installs malicious software on the victim's system, Dunham said. Microsoft's next regularly scheduled security updates will be released Oct. 10. Â ADVERTISEMENTMAKE SOA REAL WITH IBM WEBSPHERE PODCASTStreamline processes and maximize efficiency within a proven service oriented architecture. Take back control of your business processes with IBM WebSphere.
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A vulnerability, which has been detected in Microsoft&#39;s flagship Internet Explorer, can be exploited by malicious users to conduct cross-site scripting attacks.
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(InfoWorld) - Hackers are taking advantage of aÂ newly discovered vulnerability in Internet ExplorerÂ to install spyware on PCs that visit a number of Russian porn sites. The malware, first reported Monday by researchers at Sunbelt Software Inc., takes advantage of an unpatched flaw in the way IE processes Vector Markup Language (VML) code. VML is a language used to display graphic information on the Web. The attack appears to work on all versions of Windows running the IE 6 browser, said Eric Sites, Sunbelt's vice president of research and development. "It's not an operating system-dependent issue," he said. Sunbelt first discovered the malware on a Russian porn site late Friday. "This site and a couple of others use an exploit kit called Web Attacker, and it looks like the Web Attacker kit has been upgraded to include this new exploit," Sites said. Since Friday, Sunbelt noticed that the attack code has popped up on about a half-dozen Russian porn sites. In addition, since security researchers estimate that Web Attacker is used by nearly 1,000 Web sites, this latest exploit should soon become more widespread. Web Attacker is a software development kit sold for as little as US$20 to criminals looking for an easy way to develop malware. "Since it's being built into the next version of the Web Attacker kit, we expect that this thing will be everywhere in a few days," said Sites. Whether the attacks will be widespread enough for Microsoft to rush to patch the flaw remains to be seen. On Tuesday, Microsoft confirmed the Sunbelt team's findings, and said it planned to fix the VML bug in its next set of security patches, scheduled to be released on Oct. 10, "or sooner as warranted," according to a statement from the company's public relations agency. This is the second unpatched flaw found in IE over the past week. On Sept. 14, researchers posted code that could be used to exploit a different vulnerability in a multimedia component of Internet Explorer. Microsoft is still investigating that flaw and is not saying whether it too will be patched next month. Sunbelt says that users can avoid the VML attack by disabling Javascript on their browsers. More information can be found on the Sunbelt blog,Â located here.ADVERTISEMENTMAKE SOA REAL WITH IBM WEBSPHERE PODCASTStreamline processes and maximize efficiency within a proven service oriented architecture. Take back control of your business processes with IBM WebSphere.
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Microsoft&#39;s flagship Internet Explorer has once again come under the spotlight, albeit for all the wrong reasons. Two more vulnerabilities were uncovered in the widely used Web browser version 6, according to security firm Secunia.
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Update to "critical" Internet Explorer patch repairs a serious security flaw introduced by the original version.
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Microsoft's IE (Internet Explorer) browser has an unpatched vulnerability that could let hackers hijack, then access, Google Gmail accounts, a California security company warned Monday.IE, said Santa Clara-based Cenzic in an alert issued Monday, contains an unspecified cached files bug that, when combined with a cross-site request forgery flaw in the Web-based e-mail service, exposes Gmail account sign-ons and lets others access those accounts and any messages or file attachments there.Although not a bug that can be leveraged remotely -- an attacker must have local, physical access to the PC -- as Cenzic pointed out in its alert, there are scenarios where that's not a limitation. "These vulnerabilities could be exploited such that all users of a shared computer who use Internet Explorer and share a user account -- a common practice at computer kiosks in a library or Internet cafe -- could be vulnerable," said Cenzic.Gmail contributes to the overall vulnerability because its URLs display attachments when viewed using the "View Source" command, the warning went on. IE, however, sports "improper use of caching directives [and] incorrect access checks on cached Internet Explorer files."Together, the bugs could conceivably let someone at a public PC hijack any Gmail log-on credentials that had been entered on the machine since the IE cache had last been purged. IE deletes the contents of its cache only as new files are added -- and the oldest are deleted -- or when the user explicitly instructs the browser to clear the cache using the "Delete Browsing History" command.Microsoft denied that IE even has a bug. "Microsoft has thoroughly investigated the claim and found that this is not a product vulnerability," said a company spokesman Tuesday morning. "In the scenario in question, an attacker would need authenticated access to the system in order to modify files located in the cache. With that level of access, an attacker could install malicious programs that would have more impact than the scenarios described."While true, that did not address Cenzic's scenario; by design, public PCs such as those in libraries, schools or Web cafes do not require authentication to access. Microsoft was not available for clarification.Google did not immediately respond to questions about Gmail's part in the threat
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A new variant of the Mydoom worm that exploits an unpatched flaw in Microsoft&#39;s Internet Explorer browser is in the wild and posing particular risk to home and small business users, security experts warn.
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The update for the Mozilla browser fixes an unusual vulnerability that could cause malicious code to run if the browser is launched by Microsoft's IE.