Description:

djangoauditwazuh 0.7.0

Django Audit Wazuh






Auditing app, simple as possible, to have a good logging system for security purpose.
You'll have a json file able to be processed by a SIEM like Wazuh or OSSEC.
Features

Login, logout and bruteforce attempts.

Todo

Other critical django.security messages, needs more testing with sane unit tests.

Setup
pip install django-audit-wazuh
# or
pip install git+https://github.com/peppelinux/django-audit-wazuh.git

Configuration
In settings.py:

add 'auditing' in INSTALLED_APPS
add a Middleware as follows (not mandatory!)
configure a logging as follows

# requests headers auditing
if 'auditing' in INSTALLED_APPS:
MIDDLEWARE.append('auditing.middlewares.HttpHeadersLoggingMiddleware')
#

LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'formatters': {
'default': {
# exact format is not important, this is the minimum information
'format': '%(asctime)s %(name)-12s %(levelname)-8s %(message)s',
},
'detailed': {
'format': '[%(asctime)s] %(message)s [(%(levelname)s)] %(args)s %(name)s %(filename)s.%(funcName)s:%(lineno)s]'
},
'json': {
'format': '{"timestamp": "%(asctime)s", "msg": %(message)s, "level": "%(levelname)s", "name": "%(name)s", "path": "%(filename)s.%(funcName)s:%(lineno)s", "@source":"django-audit"}'
},
},
'filters': {
'require_debug_false': {
'()': 'django.utils.log.RequireDebugFalse'
}
},
'handlers': {
'mail_admins': {
'level': 'ERROR',
'filters': ['require_debug_false'],
'class': 'django.utils.log.AdminEmailHandler'
},
'file': {
'formatter': 'json',
'level': 'DEBUG',
'class': 'logging.handlers.RotatingFileHandler',
'filename': './django_siem.log',
'maxBytes': 1024000,
'backupCount': 3,
},
'console': {
'formatter': 'detailed',
'level': 'DEBUG',
'class': 'logging.StreamHandler',
},
},
'loggers': {
'django.security': {
'handlers': ['console', 'file'],
'level': 'DEBUG',
'propagate': False,
},
'django.request': {
'handlers': ['console', 'file'],
'level': 'DEBUG',
'propagate': True,
},
'django.contrib.auth': {
'handlers': ['console', 'file'],
'level': 'DEBUG',
'propagate': True,
},
'django.db.backends': {
'level': 'ERROR',
'handlers': ['console', 'file'],
'propagate': True,
},
'auditing': {
'handlers': ['console', 'file'],
'level': 'INFO',
'propagate': True,
},
}
}


Results
You'll get a file with all the relevant events in json format, like
{"timestamp": "2020-04-21 13:05:01,238", "msg": "Django Login failed", "username": "dsfsdf", "url": "http://localhost:8000/gestionelogin/?next=/gestione", "data.srcip": "127.0.0.1", "path": "/gestionelogin/?next=/gestione", "Content-Length": "132", "Content-Type": "application/x-www-form-urlencoded", "Host": "localhost:8000", "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", "Accept-Language": "en-US,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Origin": "http://localhost:8000", "Connection": "keep-alive", "Referer": "http://localhost:8000/gestionelogin/?next=/gestione", "Cookie": "csrftoken=pTG3UCHtiE0q4PNectVIH4hbezbqL2O2tvWx97rY8zwOxigSzG9unl2tqELzMhpM; cookieconsent_status=dismiss", "Upgrade-Insecure-Requests": "1", "level": "WARNING", "name": "auditing", "path": "__init__.py.login_failed_logger:23", "@source":"django-audit"}
{"timestamp": "2020-04-21 13:05:33,521", "msg": "Django Login successful", "username": "wert", "url": "http://localhost:8000/gestionelogin/?next=/gestione", "data.srcip": "127.0.0.1", "path": "/gestionelogin/?next=/gestione", "Content-Length": "131", "Content-Type": "application/x-www-form-urlencoded", "Host": "localhost:8000", "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", "Accept-Language": "en-US,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Origin": "http://localhost:8000", "Connection": "keep-alive", "Referer": "http://localhost:8000/gestionelogin/?next=/gestione", "Cookie": "csrftoken=pTG3UCHtiE0q4PNectVIH4hbezbqL2O2tvWx97rY8zwOxigSzG9unl2tqELzMhpM; cookieconsent_status=dismiss", "Upgrade-Insecure-Requests": "1", "level": "INFO", "name": "auditing", "path": "__init__.py.login_logger:16", "@source":"django-audit"}
{"timestamp": "2020-04-21 13:05:36,582", "msg": "Django Logout successful", "username": "wert", "url": "http://localhost:8000/gestionelogout/", "data.srcip": "127.0.0.1", "path": "/gestionelogout/", "Content-Type": "text/plain", "Host": "localhost:8000", "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", "Accept-Language": "en-US,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Connection": "keep-alive", "Referer": "http://localhost:8000/gestione", "Cookie": "csrftoken=e50mIQ4NWKYjDKBKA9a1iFufQuRv2W8LKAWnIjm4meXhiCSWPHzxfkrllMeNVqDR; cookieconsent_status=dismiss; sessionid=cxu3hfono6t6p1dl70q80836pe292ri3", "Upgrade-Insecure-Requests": "1", "level": "INFO", "name": "auditing", "path": "__init__.py.logout_logger:30", "@source":"django-audit"}

Tuning
Auditing Middleware can log everything between a http request and its following response.
These are the overloadable settings variables
# for i in http.HTTPStatus: print(i, i.value)
AUDIT_RESPONSE_HTTPCODES = getattr(settings,
'AUDIT_RESPONSE_HTTPCODES',
[i.value for i in http.HTTPStatus if i not in (200,201,202,301,302)])

# prevents to read the password in clear
AUDIT_REQUEST_POST_IGNORED = ('password', )

Wazuh configuration


Copy the content of wazuh-ruleset/27081-django_decoders.xml in /var/ossec/etc/decoders/local_decoder.xml


Copy the content of wazuh-ruleset/27081-django_rules.xml in /var/ossec/etc/rules/local_rules.xml.


Test the triggers with /var/ossec/bin/ossec-logtest, copy a log line in stdin and see events.


Create an agent group called django
/var/ossec/bin/agent_groups -a -g django



Edit agent group configuration /var/ossec/etc/shared/django/agent.conf this way
<localfile>
<location>ABSOLUTE_PATH_TO_YOUR_DJANGO_AUDIT_LOG.json</location>
<log_format>json</log_format>
<label key="@source">django-audit</label>
</localfile>



Add agents to this group
/var/ossec/bin/agent_groups -a -i 014 -g django



Control when they are synced
/var/ossec/bin/agent_groups -S -i 014



Restart Wazuh-manager to reload rulesets service wazuh-manager restart


GeoIP
On wazuh-manager, edit /usr/share/filebeat/module/wazuh/alerts/ingest/pipeline.json adding the new IP field inside processors, along the other Geolocation fields:
{
"geoip": {
"field": "srcip",
"target_field": "GeoLocation",
"properties": ["city_name", "country_name", "region_name", "location"],
"ignore_missing": true,
"ignore_failure": true
}
},

We now need to delete the current pipeline. In Kibana, go to Dev Tools clicking on the Wrench icon. Then execute the following:
DELETE _ingest/pipeline/filebeat-7.6.2-wazuh-alerts-pipeline

We restart Filebeat in wazuh-manager:
systemctl restart filebeat

License
Apache 2.0
Authors
Giuseppe De Marco giuseppe.demarco@unical.it
Credits
Garrlab Wazuh SIEM crew

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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