Marik Posted October 25, 2008 Share Posted October 25, 2008 October 21, 2008 (Computerworld) Google Inc. has patched its Chrome browser to block a months-old bug that can be used to trick people into downloading and launching malicious code.The fix has not been pushed out to most users, however. The security researcher who reported the vulnerability, which involves a combination of the "carpet bomb" bug with another flaw disclosed in August, called the fix "enough for the time being" but said Google's patch wasn't the final word. Google plugged the hole in a developer-only version of Chrome that has not yet been sent to all users via the browser's update mechanism. Chrome users, however, can reset the browser to receive all updates, including the developer editions, with the Channel Chooser plug-in.According to a Google blog, Chrome 0.3.154.3, which was released last week, changes the browser's download behavior for executable files, such as .exe, .dll, and .bat files on Windows. "These files are now downloaded to 'unconfirmed_*.download' files," said Mark Larson, Chrome program manager, in the blog post. "In the browser, you're asked if you want to accept the download. Only after you click Save is the 'unconfirmed_*.download' file converted to the real file name. Unconfirmed downloads are deleted when Google Chrome exits." Last month, Israeli security researcher Aviv Raff demonstrated how hackers could create a new "blended threat" -- so-named because it relies on multiple vulnerabilities -- to attack Chrome. Raff's proof-of-concept code used an auto-download vulnerability (a.k.a. carpet bomb) along with a user interface design flaw and an issue with Java. Chrome contributed to the vulnerability by making downloaded files appear as buttons at the bottom of the browser's frame, Raff said then. Source: Computer World Link to comment Share on other sites More sharing options...
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