# Vodafone Station Exporter Prometheus Exporter for the Vodafone Station (`CGA4233DE`) ## Usage ``` Usage of ./vodafone-station-exporter: -show-metrics Show available metrics and exit -version Print version and exit -vodafone.station-password string Password for logging into the Vodafone station (default "How is the default password calculated? mhmm") -vodafone.station-password-file string File that contains the password for logging into the Vodafone station -vodafone.station-url string Vodafone station URL. For bridge mode this is 192.168.100.1 (note: Configure a route if using bridge mode) (default "http://192.168.0.1") -web.listen-address string Address to listen on (default "[::]:9420") -web.telemetry-path string Path under which to expose metrics (default "/metrics") ``` ## Exported metrics * `vodafone_station_login_success_bool`: 1 if the login was successfull * `vodafone_station_login_message_info`: Login message returned by the web interface - Labels: `message` * `vodafone_station_user_info`: User name as returned by the web interface - Labels: `username` * `vodafone_station_uid_info`: User id as returned by the web interface - Labels: `uid` * `vodafone_station_default_password_bool`: 1 if the default password is in use * `vodafone_station_downstream_central_frequency_hertz`: Central frequency in hertz - Labels: `id`, `channel_id`, `fft`, `channel_type` * `vodafone_station_downstream_power_dBmV`: Power in dBmV - Labels: `id`, `channel_id`, `fft`, `channel_type` * `vodafone_station_downstream_snr_dB`: SNR in dB - Labels: `id`, `channel_id`, `fft`, `channel_type` * `vodafone_station_downstream_snr_dB`: SNR in dB - Labels: `id`, `channel_id`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_start_frequency_hertz`: Start frequency - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_end_frequency_hertz`: End frequency - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_central_frequency_hertz`: Central frequency - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_bandwidth_hertz`: Bandwidth - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_power_dBmV`: Power - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_snr_dB`: SNR - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_ofdm_downstream_locked_bool`: Locking status - Labels: `id`, `channel_id_ofdm`, `fft`, `channel_type` * `vodafone_station_upstream_central_frequency_hertz`: Central frequency - Labels: `id`, `channel_id_up`, `fft`, `channel_type` * `vodafone_station_upstream_power_dBmV`: Power - Labels: `id`, `channel_id_up`, `fft`, `channel_type` * `vodafone_station_upstream_ranging_status_info`: Ranging status - Labels: `id`, `channel_id_up`, `fft`, `channel_type`, `status` * `vodafone_station_firewall_status_info`: Firewall status - Labels: `firewall_status` * `vodafone_station_lan_ip4_info`: LAN IPv4 info - Labels: `lan_ip4` * `vodafone_station_lan_mode_info`: LAN mode info - Labels: `mode` * `vodafone_station_lan_gateway_info`: LAN gateway info - Labels: `lan_gateway` * `vodafone_station_lan_dhcp_enabled_bool`: LAN DHCP enabled info * `vodafone_station_lan_mac_address_info`: LAN MAC address - Labels: `mac_address` * `vodafone_station_lan_port_up_bool`: LAN port status - Labels: `port` * `vodafone_station_lan_port_speed_bits_per_second`: LAN port speed in bits/second - Labels: `port` * `vodafone_station_wlan_enabled_bool`: WLAN enabled info - Labels: `frequency` * `vodafone_station_wlan_channel`: WLAN channel - Labels: `frequency` * `vodafone_station_wlan_bandwidth_hertz`: WLAN bandwidth in Hertz - Labels: `frequency` * `vodafone_station_wlan_max_speed_bits_per_second`: Max WLAN speed in bits/seconds - Labels: `frequency` * `vodafone_station_wlan_ssid_info`: SSID information - Labels: `frequency`, `ssid` * `vodafone_station_wlan_mac_address_info`: WLAN MAC address - Labels: `frequency`, `mac_address` * `vodafone_station_wlan_security_info`: WLAN security - Labels: `frequency`, `security_info` * `vodafone_station_dns_entries_count`: DNS Entries count * `vodafone_station_aftr_info`: AFTR gateway information - Labels: `aftr` * `vodafone_station_serialnumber_info`: Serial number information - Labels: `serial_number` * `vodafone_station_firmwareversion_info`: Firmware vresion information - Labels: `firmware_version` * `vodafone_station_hardware_type_info`: Hardware type information - Labels: `hardware_type` * `vodafone_station_uptime_seconds`: Uptime in seconds * `vodafone_station_internet_ip4_info`: Internet IPv4 - Labels: `ip4` * `vodafone_station_delegated_prefix_info`: Delegated prefix information - Labels: `prefix` * `vodafone_station_ip_address_rt_info`: IP address RT - Labels: `ip` * `vodafone_station_ip_prefix_class_info`: IP prefix class info - Labels: `prefix_class` * `vodafone_station_call_end_time_epoch`: Call endtime as unix epoch - Labels: `port`, `id`, `external_number`, `direction`, `type` * `vodafone_station_call_start_time_epoch`: Call starttime as unix epoch - Labels: `port`, `id`, `external_number`, `direction`, `type` * `vodafone_station_status_led_enabled_bool`: Status LEDs * `vodafone_station_software_component_info`: Information about software components - Labels: `name`, `version`, `licsense` * `vodafone_station_sip_line_status_info`: Information about SIP registration status - Labels: `port`, `status` * `vodafone_station_sip_line_numbers_info`: Information about phone numbers associated with SIP registration - Labels: `port`, `number` * `vodafone_station_logout_success_bool`: 1 if the logout was successfull * `vodafone_station_logout_message_info`: Logout message returned by the web interface - Labels: `message` ## Reverse Engineering the login mechanism > I am not a Javascript engineer, but it works :man_shrugging: Logging into the PHP application running on the CGA4233DE is made as complicated as possible. From the console we see: ```bash curl 'http://192.168.100.1/api/v1/session/login' \ -H 'Connection: keep-alive' \ -H 'Accept: */*' \ -H 'X-CSRF-TOKEN: ' \ -H 'X-Requested-With: XMLHttpRequest' \ -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' \ --data-raw 'username=admin&password=seeksalthash' \ --compressed \ --insecure ``` > CSRF seems broken, lol. Whatever - we don't care. reply is ```json {"error":"ok","salt":"","saltwebui":""} ``` For the actual login a derived token derived from the actual password is used: ``` curl 'http://192.168.100.1/api/v1/session/login' \ -H 'Connection: keep-alive' \ -H 'Accept: */*' \ -H 'X-CSRF-TOKEN: ' \ -H 'X-Requested-With: XMLHttpRequest' \ -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' \ -H 'Cookie: ' \ --data-raw 'username=admin&password=' \ --compressed \ --insecure ``` Looking at the obfuscated JavaShit (`login.js`), we see something like follows: ```js doPbkdf2NotCoded(doPbkdf2NotCoded("", ""), "") ``` quick check reveals: Yes, that returns the token used for the login. :heavy_check_mark: Ok, so what does `doPbkdf2NotCoded` do? ```js function doPbkdf2NotCoded(_0x365ad6, _0x470596) { var _0x51b261 = sjcl[_0x5bfa('0x10')][_0x5bfa('0x11')](_0x365ad6, _0x470596, 0x3e8, 0x80); var _0x279f24 = sjcl[_0x5bfa('0xc')][_0x5bfa('0x12')]['fromBits'](_0x51b261); return _0x279f24; } ``` easy, isn't it? %) Turns out, `sjcl` is not yet another obfuscated JS function, but this [thingie](https://github.com/bitwiseshiftleft/sjcl). Translated to something slightly more human readable (using the JS console) ```js function whatTheFuck(param1, param2) { // a, b, c, d var temp = sjcl["misc"]["pbkdf2"](param1, param2, 0x3e8, 0x80) return sjcl["codec"]["hex"]["fromBits"](temp) } ``` From here, I started the GoLang implementation, which looks as follows: ```golang // GetLoginPassword derives the password using the given salts func GetLoginPassword(password, salt, saltWebUI string) string { return DoPbkdf2NotCoded(DoPbkdf2NotCoded(password, salt), saltWebUI) } // Equivalent to the JS doPbkdf2NotCoded (see README.md) func DoPbkdf2NotCoded(key, salt string) string { temp := pbkdf2.Key([]byte(key), []byte(salt), 0x3e8, 0x80, sha256.New) return hex.EncodeToString(temp[:16]) } ``` Oh BTW, Vodafone: Performing `pbkdf2` twice won't secure an HTTP (non TLS) login.