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Migrates alerts to an object-oriented implementation

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Migrates alert_malicious_signature alert_elephant_local_to_remote alert_elephant_remote_to_local

Migrates long_lived

Migrates alert_flow_blocked

Migrates alert_tls_old_version

Migrates alert_tls_certificate_mismatch

Migrates alert_tls_certificate_expired

Migrates alert_tls_unsafe_ciphers

Migrates alert_tls_certificate_selfsigned

Migrates alert_potentially_dangerous_protocol

Migrates alert_snmp_device_reset

Migrates alert_port_mac_changed

Migrates alert_port_duplexstatus_change

Mirgates alert_port_errors

Migrates alert_port_status_change

Migrates alert_port_load_threshold_exceeded

Migrates alert_data_exfiltration

Migrates alert_dns_data_exfiltration

Migrates alert_suspicious_tcp_probing alert_suspicious_tcp_syn_probing alert_tcp_connection_refused

Migrates alert_dns_invalid_query

Migrates alert_attack_mitigation_via_snmp

Migrates alert_lateral_movement

Migrates alert_periodicity_update

Migrates alert_dns_positive_error_ratio

Migrates alert_iec104_error
This commit is contained in:
Simone Mainardi 2020-12-22 09:54:55 +01:00
parent 35a66a0c8a
commit 3baa932a01
50 changed files with 1495 additions and 812 deletions
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62
scripts/lua/modules/alert_definitions/alert_iec104_error.lua
View file

@ -2,34 +2,52 @@
-- (C) 2019-20 - ntop.org
--
local alert_keys = require "alert_keys"
local format_utils = require "format_utils"
local json = require("dkjson")
-- ##############################################
-- #######################################################
local alert_keys = require "alert_keys"
local json = require "dkjson"
local format_utils = require "format_utils"
-- Import the classes library.
local classes = require "classes"
-- Make sure to import the Superclass!
local alert = require "alert"
-- ##############################################
local alert_iec104_error = classes.class(alert)
-- ##############################################
alert_iec104_error.meta = {
alert_key = alert_keys.ntopng.alert_iec104_error,
i18n_title = "alerts_dashboard.iec104_error",
icon = "fas fa-subway",
}
-- ##############################################
-- @brief Prepare an alert table used to generate the alert
-- @param alert_severity A severity as defined in `alert_severities`
-- @param alert_granularity A granularity as defined in `alert_consts.alerts_granularities`
-- @param last_error A string with the lastest influxdb error
-- @return A table with the alert built
local function createIEC104Error(alert_severity, alert_granularity, alert_subtype, last_error)
local threshold_type = {
alert_severity = alert_severity,
alert_subtype = alert_subtype,
alert_granularity = alert_granularity,
alert_type_params = {
error_msg = last_error
},
}
function alert_iec104_error:init(last_error)
-- Call the paren constructor
self.super:init()
return threshold_type
self.alert_type_params = {
error_msg = last_error
}
end
-- #######################################################
local function formatIEC104ErrorMessage(ifid, alert, status)
local msg = json.decode(status.error_msg)
-- @brief Format an alert into a human-readable string
-- @param ifid The integer interface id of the generated alert
-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
-- @return A human-readable string
function alert_iec104_error.format(ifid, alert, alert_type_params)
local msg = json.decode(alert_type_params.error_msg)
local vlanId = alert.vlanId or 0
local client = ip2label(msg.client.ip, msg.vlanId)
local server = ip2label(msg.server.ip, msg.vlanId)
@ -53,10 +71,4 @@ end
-- #######################################################
return {
alert_key = alert_keys.ntopng.alert_iec104_error,
i18n_title = "alerts_dashboard.iec104_error",
i18n_description = formatIEC104ErrorMessage,
icon = "fas fa-subway",
creator = createIEC104Error,
}
return alert_iec104_error