Firefox still vulnerable to attacks from protocol-handling bugs
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Even though it was patched twice in July, Mozilla's Firefox browser is still vulnerable to attacks exploiting protocol-handling bugs, according to security researchers.
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Browser flaw may leave you vulnerable to phishing attacks.
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(InfoWorld) - Mozilla has released the first update for the Firefox 2.0 browserÂ to fix eight security vulnerabilities. According to the company, release 2.0.0.1 of Firefox fixes flaws in memory corruption as well as the way the browser executes RSS (really simple syndication), Javascript and CSS (cascading style sheets) code, among other vulnerabilities. Mozilla also patched similar flaws in its Firefox 1.5 browser. Five of the eight flaws were rated as critical, according to Firefox. A critical rating means a Firefox user would be vulnerable to attack and remote software installation on their machines just from browsing the Web in the usual fashion. Two of the flaws were rated as high, while one received a low security-risk rating, Firefox said. Mozilla's advisory and information on the update can be found on the company's Web site. Danish security firm Secunia ApS also posted information about the patches on its Web site. Mozilla released Firefox 2.0, the second major update to its open-source browser, in October.
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Mozilla is working to fix a browser flaw that could give attackers unauthorized access to data on a victim's machine.
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Mozilla's latest pre-release version of its browser remains buggy, but performance enhancements give us reason to get excited. In Monkey Bites.
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Floor by flaw The latest versions of Internet Explorer and Firefox on Windows and (in the case of Firefox) Unix systems are vulnerable to attacks that could reveal the contents of sensitive files residing on a victim's hard drives.â¦
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(InfoWorld) - Mozilla late yesterday patched Firefox to fix nine bugs, including the controversial critical vulnerability that involved both the open source Web browser and Microsoft's Internet Explorer. Firefox 2.0.0.5, which can be downloaded in versions for Windows, Mac OS X, and Linux in 42 localized editions, fixes the "firefoxurl://" vulnerability that can be exploited only on systems where Firefox is installed but IE is the primary browser. For the past week, researchers have quarreled over whether Mozilla or Microsoft was responsible for the flaw and which company should patch its software. In the security advisory, one of eight issued yesterday that outline the nine bugs, Mozilla again refrained from expressly putting the onus on Microsoft. But as before, it came close. "Other Windows applications can be called in this way and also manipulated to execute malicious code," read the advisory. "This fix only prevents Firefox and Thunderbird from accepting bad data. This patch does not fix the vulnerability in Internet Explorer." And more blunt was the single suggested work-around. "Mozilla highly recommends using Firefox to browse the Web to prevent attackers from exploiting this problem in Internet Explorer," it said. One of the researchers who last week pinned blame on Microsoft had not changed his tune as of yesterday. "This [Firefox patch] does not actually fix the flaw in Internet Explorer, but simply patches one of the myriads of attack vectors," said Thor Larholm, a Danish researcher who publicized the exploit. "I can definitely understand the initial reaction from Microsoft. Most of the emphasis in the public vulnerability reports were dealing with Firefox, the '-chrome' command-line argument, and how to properly escape the exploit code. "However, I can still automatically launch a wide range of external applications from Internet Explorer and provide them with arbitrary command-line arguments, [including] AcroRd32.exe (Adobe Acrobat PDF Reader), aim.exe (AOL Instant Messenger), Outlook.exe, msimn.exe (Outlook Express), netmeeting.exe, HelpCtr.exe (Windows Help Center), mirc.exe, Skype.exe, wab.exe (Windows Address Book), and wmplayer.exe (Windows Media Player), just to name a few," Larholm wrote. Microsoft's position last week has been that IE is not buggy and so wouldn't be patched. "Microsoft has thoroughly investigated the claim of a vulnerability in Internet Explorer and found that this is not a vulnerability in a Microsoft product," a spokesman said last Thursday. Other patches put into place by 2.0.0.5 included multiple memory corruption bugs. "With enough effort ... some of these could be exploited to run arbitrary code," a cross-site scripting vulnerability and a flaw that could give attackers access to the browser's cache. Mozilla picked up the pace to push Firefox 2.0.0.5 out to users earlier than scheduled. On Monday, Mozilla developers pegged the update as a "fire drill release" because of the critical nature of the firefoxurl:// bug. At the time, July 19 was the target for 2.0.0.5's release. "But we might be able to accelerate the release," notes from a weekly status meeting read. This is the first update to Firefox since support for the older 1.5.x line was discontinued. Earlier this month, users of that version were offered an automatic update to Firefox 2.0.0.4.
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A vulnerability in the way the Firefox browser handles Javascript drew attention at a Saturday presentation at the ToorCon hacker conference, and Mozilla developers entered the week "heads down" in search of a solution.
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Basic authentication sucks Flaws in the way the latest version of Mozilla Firefox presents authentication dialog boxes leave the door open for cybercrooks to trick users into handing over login credentials, a leading security researcher warns.â¦
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The Mozilla Foundation&#39;s Firefox stand-alone browser, which has been riding a wave of defectors from the security-plagued Internet Explorer, has a bug of its own, the open-source group recently announced.
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Pass the parcel bug binned Mozilla has pushed out a new version of Firefox that fixes a number of security bugs, including a high-profile bug involving launching Firefox from Internet Explorer.â¦
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php|architect has a new note about a few PHP vulnerabilities:
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Just days after the Mozilla Foundation released the final version of its standalone Firefox browser, a security firm Thursday said that earlier editions were buggy and should be replaced.
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A security update slated to be released this week for the Firefox Web browser has been delayed by a day to Mozilla Corp. can test out a fix for a vulnerability made public last week.
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It's raining security updates Mozilla pushed out a new update of Firefox on Thursday that fixes ten security vulnerabilities, three of which are deemed critical.â¦
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PC Magazine - A public claim by hackers that Mozilla's Firefox browser is vulnerable to multiple code execution vulnerabilities may be a joke gone awry.
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Add-ons add security threat A security weakness in the update mechanism for third-party add-ons to the Firefox browser could give an attacker the ability to exploit unsecured downloads and install malicious code on the victim's computer, a security researcher warned on Wednesday.â¦