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Microsoft Fixing Bing Bug That Helped Spammers
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Posted by Donster on: 2009-10-23 16:42:40 390
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By Elinor Mills @ CNET News
Microsoft on Wednesday said it is fixing a bug in Bing that allowed spammers to bypass spam filters and distribute malicious links.
Researchers at Webroot Software discovered a spam campaign earlier this week that used the search engine's own redirection mechanism and a link-shrinking technique to send people to spam Web pages, according to a post on the Webroot threat blog.
The problem is with how Bing formats links in RSS feeds. The redirect from Bing to the spam site is not obfuscated, allowing scammers to append anything to the end of the Bing redirect URL and thus trick spam filters, said Andrew Brandt, a threat researcher at Webroot.
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