mirror of
https://github.com/jokob-sk/NetAlertX.git
synced 2025-12-07 09:36:05 -08:00
212 lines
9.4 KiB
Python
Executable File
212 lines
9.4 KiB
Python
Executable File
|
|
import subprocess
|
|
|
|
import conf
|
|
from const import logPath, sql_nmap_scan_all
|
|
from helper import json_struc, timeNow, updateState
|
|
from logger import append_line_to_file, mylog
|
|
#-------------------------------------------------------------------------------
|
|
|
|
|
|
|
|
class nmap_entry:
|
|
def __init__(self, mac, time, port, state, service, name = '', extra = '', index = 0):
|
|
self.mac = mac
|
|
self.time = time
|
|
self.port = port
|
|
self.state = state
|
|
self.service = service
|
|
self.name = name
|
|
self.extra = extra
|
|
self.index = index
|
|
self.hash = str(mac) + str(port)+ str(state)+ str(service)
|
|
|
|
|
|
#-------------------------------------------------------------------------------
|
|
def performNmapScan(db, devicesToScan):
|
|
"""
|
|
run nmap scan on a list of devices
|
|
discovers open ports and keeps track existing and new open ports
|
|
"""
|
|
if len(devicesToScan) > 0:
|
|
|
|
timeoutSec = conf.NMAP_TIMEOUT
|
|
|
|
devTotal = len(devicesToScan)
|
|
|
|
updateState(db,"Scan: Nmap")
|
|
|
|
mylog('verbose', ['[NMAP Scan] Scan: Nmap for max ', str(timeoutSec), 's ('+ str(round(int(timeoutSec) / 60, 1)) +'min) per device'])
|
|
mylog('verbose', ["[NMAP Scan] Estimated max delay: ", (devTotal * int(timeoutSec)), 's ', '(', round((devTotal * int(timeoutSec))/60,1) , 'min)' ])
|
|
|
|
devIndex = 0
|
|
for device in devicesToScan:
|
|
# Execute command
|
|
output = ""
|
|
# prepare arguments from user supplied ones
|
|
nmapArgs = ['nmap'] + conf.NMAP_ARGS.split() + [device["dev_LastIP"]]
|
|
|
|
progress = ' (' + str(devIndex+1) + '/' + str(devTotal) + ')'
|
|
|
|
try:
|
|
# try runnning a subprocess with a forced (timeout + 30 seconds) in case the subprocess hangs
|
|
output = subprocess.check_output (nmapArgs, universal_newlines=True, stderr=subprocess.STDOUT, timeout=(timeoutSec + 30))
|
|
except subprocess.CalledProcessError as e:
|
|
# An error occured, handle it
|
|
mylog('none', ["[NMAP Scan] " ,e.output])
|
|
mylog('none', ["[NMAP Scan] Error - Nmap Scan - check logs", progress])
|
|
except subprocess.TimeoutExpired as timeErr:
|
|
mylog('verbose', ['[NMAP Scan] Nmap TIMEOUT - the process forcefully terminated as timeout reached for ', device["dev_LastIP"], progress])
|
|
|
|
if output == "": # check if the subprocess failed
|
|
mylog('info', ['[NMAP Scan] Nmap FAIL for ', device["dev_LastIP"], progress ,' check logs for details'])
|
|
else:
|
|
mylog('verbose', ['[NMAP Scan] Nmap SUCCESS for ', device["dev_LastIP"], progress])
|
|
|
|
devIndex += 1
|
|
|
|
# check the last run output
|
|
newLines = output.split('\n')
|
|
|
|
# regular logging
|
|
for line in newLines:
|
|
append_line_to_file (logPath + '/pialert_nmap.log', line +'\n')
|
|
|
|
# collect ports / new Nmap Entries
|
|
newEntriesTmp = []
|
|
|
|
index = 0
|
|
startCollecting = False
|
|
duration = ""
|
|
for line in newLines:
|
|
if 'Starting Nmap' in line:
|
|
if len(newLines) > index+1 and 'Note: Host seems down' in newLines[index+1]:
|
|
break # this entry is empty
|
|
elif 'PORT' in line and 'STATE' in line and 'SERVICE' in line:
|
|
startCollecting = True
|
|
elif 'PORT' in line and 'STATE' in line and 'SERVICE' in line:
|
|
startCollecting = False # end reached
|
|
elif startCollecting and len(line.split()) == 3:
|
|
newEntriesTmp.append(nmap_entry(device["dev_MAC"], timeNow(), line.split()[0], line.split()[1], line.split()[2], device["dev_Name"]))
|
|
elif 'Nmap done' in line:
|
|
duration = line.split('scanned in ')[1]
|
|
index += 1
|
|
mylog('verbose', ['[NMAP Scan] Ports found by NMAP: ', len(newEntriesTmp)])
|
|
process_discovered_ports(db, device, newEntriesTmp)
|
|
#end for loop
|
|
|
|
|
|
|
|
def process_discovered_ports(db, device, discoveredPorts):
|
|
"""
|
|
process ports discovered by nmap
|
|
compare to previosu ports
|
|
update DB
|
|
raise notifications
|
|
"""
|
|
sql = db.sql # TO-DO
|
|
# previous Nmap Entries
|
|
oldEntries = []
|
|
changedPortsTmp = []
|
|
|
|
mylog('verbose', ['[NMAP Scan] Process ports found by NMAP: ', len(discoveredPorts)])
|
|
|
|
if len(discoveredPorts) > 0:
|
|
|
|
# get all current NMAP ports from the DB
|
|
rows = db.read(sql_nmap_scan_all)
|
|
|
|
for row in rows:
|
|
# only collect entries matching the current MAC address
|
|
if row["MAC"] == device["dev_MAC"]:
|
|
oldEntries.append(nmap_entry(row["MAC"], row["Time"], row["Port"], row["State"], row["Service"], device["dev_Name"], row["Extra"], row["Index"]))
|
|
|
|
newEntries = []
|
|
|
|
# Collect all entries that don't match the ones in the DB
|
|
for discoveredPort in discoveredPorts:
|
|
|
|
found = False
|
|
|
|
# Check the new entry is already available in oldEntries and remove from processing if yes
|
|
for oldEntry in oldEntries:
|
|
if discoveredPort.hash == oldEntry.hash:
|
|
found = True
|
|
|
|
if not found:
|
|
newEntries.append(discoveredPort)
|
|
|
|
|
|
mylog('verbose', ['[NMAP Scan] Nmap newly discovered or changed ports: ', len(newEntries)])
|
|
|
|
# collect new ports, find the corresponding old entry and return for notification purposes
|
|
# also update the DB with the new values after deleting the old ones
|
|
if len(newEntries) > 0:
|
|
|
|
# params to build the SQL query
|
|
params = []
|
|
indexesToDelete = ""
|
|
|
|
# Find old entry matching the new entry hash
|
|
for newEntry in newEntries:
|
|
|
|
foundEntry = None
|
|
|
|
for oldEntry in oldEntries:
|
|
if oldEntry.hash == newEntry.hash:
|
|
indexesToDelete = indexesToDelete + str(oldEntry.index) + ','
|
|
foundEntry = oldEntry
|
|
|
|
columnNames = ["Name", "MAC", "Port", "State", "Service", "Extra", "NewOrOld" ]
|
|
|
|
# Old entry found
|
|
if foundEntry is not None:
|
|
# Build params for sql query
|
|
params.append((newEntry.mac, newEntry.time, newEntry.port, newEntry.state, newEntry.service, oldEntry.extra))
|
|
# Build JSON for API and notifications
|
|
changedPortsTmp.append({
|
|
"Name" : foundEntry.name,
|
|
"MAC" : newEntry.mac,
|
|
"Port" : newEntry.port,
|
|
"State" : newEntry.state,
|
|
"Service" : newEntry.service,
|
|
"Extra" : foundEntry.extra,
|
|
"NewOrOld" : "New values"
|
|
})
|
|
changedPortsTmp.append({
|
|
"Name" : foundEntry.name,
|
|
"MAC" : foundEntry.mac,
|
|
"Port" : foundEntry.port,
|
|
"State" : foundEntry.state,
|
|
"Service" : foundEntry.service,
|
|
"Extra" : foundEntry.extra,
|
|
"NewOrOld" : "Old values"
|
|
})
|
|
# New entry - no matching Old entry found
|
|
else:
|
|
# Build params for sql query
|
|
params.append((newEntry.mac, newEntry.time, newEntry.port, newEntry.state, newEntry.service, ''))
|
|
# Build JSON for API and notifications
|
|
changedPortsTmp.append({
|
|
"Name" : "New device",
|
|
"MAC" : newEntry.mac,
|
|
"Port" : newEntry.port,
|
|
"State" : newEntry.state,
|
|
"Service" : newEntry.service,
|
|
"Extra" : "",
|
|
"NewOrOld" : "New device"
|
|
})
|
|
|
|
conf.changedPorts_json_struc = json_struc({ "data" : changedPortsTmp}, columnNames)
|
|
|
|
# Delete old entries if available
|
|
if len(indexesToDelete) > 0:
|
|
sql.execute ("DELETE FROM Nmap_Scan where \"Index\" in (" + indexesToDelete[:-1] +")")
|
|
db.commitDB()
|
|
|
|
# Insert new values into the DB
|
|
sql.executemany ("""INSERT INTO Nmap_Scan ("MAC", "Time", "Port", "State", "Service", "Extra") VALUES (?, ?, ?, ?, ?, ?)""", params)
|
|
db.commitDB()
|
|
|
|
|