Twitter Fends Off Clickjacking Attacks


	Twitter Fends Off Clickjacking Attacks

David M Ewalt

2-13-2009 5:39 PM

811 views

tags:

twitter, clickjacking

David M Ewalt says:

There is no surer measure of success on the 'net than when people start trying to abuse your system.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/d81801ed-ad55-43e8-a563-96cec130ba84/260211F5-7910-4F62-948E-1F8159469CD7/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5" href="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5" style="font-size: 11px;">news.cnet.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5"><P>
Twitter fended off a second clickjacking attack on Thursday night as the popular microblogging site plays cat-and-mouse with a prankster, the site confirmed on Friday.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5"><P>
Twitter users first noticed the clickjacking prank <A href="http://news.cnet.com/8301-1009_3-10162812-83.html" title="Twitter hit with 'Don't Click' clickjacking attack -- Thursday, Feb 12, 2009">on Thursday</A> and later that day Twitter had shut it down. Tweets were popping up that said "Don't Click" followed by a link. Clicking the link took the user to a page that included a button that said "Don't Click." Clicking the button automatically distributed the identical tweet. As you can imagine, this spread pretty quickly.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5"><P>
Later on Thursday, the tweets started appearing again after someone figured out a way around Twitter's fix, said Grossman.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.cnet.com/8301-1009_3-10163790-83.html?part=rss&subj=news&tag=2547-1_3-0-5">Basically, the clickjacking page with the "Don't Click" button on it has an invisible frame with a Twitter status update button superimposed over it, he said. 
Twitter's original fix wiped a page clean if it detected a frame on its pages, but then someone circumvented that and Twitter was forced to come up with another fix</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/260211F5-7910-4F62-948E-1F8159469CD7/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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