def test_get_severity_score_v2(self):
dummy = DummyDaemon()
vthelper = VtHelper(dummy.nvti)
vtaux = {
'severities': {
'severity_type': 'cvss_base_v2',
'severity_base_vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N',
}
}
self.assertEqual(vthelper.get_severity_score(vtaux), 5.0)
def test_get_severity_score_v3(self):
dummy = DummyDaemon()
vthelper = VtHelper(dummy.nvti)
vtaux = {
'severities': {
'severity_type': 'cvss_base_v3',
'severity_base_vector': (
'CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L'
),
}
}
self.assertEqual(vthelper.get_severity_score(vtaux), 2.9)
def exec_dry_run_scan(self, scan_id, nvti, ospd_params):
options = self._daemon.scan_collection.get_options(scan_id)
results_per_host = None
if "results_per_host" in options:
results_per_host = options.get("results_per_host")
if not results_per_host or not isinstance(results_per_host, int):
logger.debug("Using default value for results_per_host options")
results_per_host = ospd_params["results_per_host"].get("default")
# Get the host list
target = self._daemon.scan_collection.get_host_list(scan_id)
logger.info("The target list %s", target)
host_list = target_str_to_list(target)
# Get the port list
ports = self._daemon.scan_collection.get_ports(scan_id)
logger.info("The port list %s", ports)
tcp, _ = ports_as_list(ports)
# Get exclude hosts list. It must not be scanned
exclude_hosts = self._daemon.scan_collection.get_exclude_hosts(scan_id)
logger.info("The exclude hosts list %s", exclude_hosts)
self._daemon.set_scan_total_hosts(
scan_id,
count_total=len(host_list),
)
self._daemon.scan_collection.set_amount_dead_hosts(scan_id,
total_dead=0)
# Get list of VTS. Ignore script params
vts = list(self._daemon.scan_collection.get_vts(scan_id))
if "vt_groups" in vts:
vts.remove("vt_groups")
vthelper = VtHelper(nvti)
# Run the scan.
# Scan simulation for each single host.
# Run the scan against the host, and generates results.
while host_list:
# Get a host from the list
current_host = host_list.pop()
# Check if the scan was stopped.
status = self._daemon.get_scan_status(scan_id)
if status == ScanStatus.STOPPED or status == ScanStatus.FINISHED:
logger.debug(
'Task %s stopped or finished.',
scan_id,
)
return
res_list = ResultList()
res_list.add_scan_log_to_list(
host=current_host,
name="HOST_START",
value=str(int(time.time())),
)
# Generate N results per host. Default 10 results
res_count = 0
while res_count < results_per_host:
res_count += 1
oid = choice(vts)
port = choice(tcp)
vt = vthelper.get_single_vt(oid)
if vt:
if vt.get('qod_type'):
qod_t = vt.get('qod_type')
rqod = nvti.QOD_TYPES[qod_t]
elif vt.get('qod'):
rqod = vt.get('qod')
rname = vt.get('name')
else:
logger.debug("oid %s not found", oid)
res_type = int(uniform(1, 5))
# Error
if res_type == 1:
res_list.add_scan_error_to_list(
host=current_host,
hostname=current_host + ".hostname.net",
name=rname,
value="error running the script " + oid,
port=port,
test_id=oid,
uri="No location",
)
# Log
elif res_type == 2:
res_list.add_scan_log_to_list(
host=current_host,
hostname=current_host + ".hostname.net",
name=rname,
value="Log generate from a dry run scan for the script "
+ oid,
port=port,
qod=rqod,
test_id=oid,
uri="No location",
)
# Alarm
else:
r_severity = vthelper.get_severity_score(vt)
res_list.add_scan_alarm_to_list(
host=current_host,
hostname=current_host + ".hostname.net",
name=rname,
value="Log generate from a dry run scan for the script "
+ oid,
port=port,
test_id=oid,
severity=r_severity,
qod=rqod,
uri="No location",
)
res_list.add_scan_log_to_list(
host=current_host,
name="HOST_END",
value=str(int(time.time())),
)
# Add the result to the scan collection
if len(res_list):
logger.debug(
'%s: Inserting %d results into scan '
'scan collection table',
scan_id,
len(res_list),
)
self._daemon.scan_collection.add_result_list(scan_id, res_list)
# Set the host scan progress as finished
host_progress = dict()
host_progress[current_host] = ScanProgress.FINISHED
self._daemon.set_scan_progress_batch(scan_id,
host_progress=host_progress)
# Update the host status, Finished host. So ospd can
# calculate the scan progress.
# This is quite importan, since the final scan status depends on
# the progress calculation.
finished_host = list()
finished_host.append(current_host)
self._daemon.sort_host_finished(scan_id, finished_host)
time.sleep(1)
logger.debug('%s: End task', scan_id)
def report_results(self, results: list, scan_id: str) -> bool:
"""Reports all results given in a list.
Arguments:
results: list of results each list item must contain a dictionary
with following fields: result_type, host_ip, host_name, port, oid,
value, uri (optional)
"""
vthelper = VtHelper(self.nvti)
res_list = ResultList()
total_dead = 0
for res in results:
if not res:
continue
roid = res["oid"].strip()
rqod = ''
rname = ''
current_host = res["host_ip"].strip() if res["host_ip"] else ''
rhostname = res["host_name"].strip() if res["host_name"] else ''
host_is_dead = ("Host dead" in res["value"]
or res["result_type"] == "DEADHOST")
host_deny = "Host access denied" in res["value"]
start_end_msg = (res["result_type"] == "HOST_START"
or res["result_type"] == "HOST_END")
host_count = res["result_type"] == "HOSTS_COUNT"
vt_aux = None
# URI is optional and containing must be checked
ruri = res["uri"] if "uri" in res else ""
if (not host_is_dead and not host_deny and not start_end_msg
and not host_count):
if not roid and res["result_type"] != 'ERRMSG':
logger.warning('Missing VT oid for a result')
vt_aux = vthelper.get_single_vt(roid)
if not vt_aux:
logger.warning('Invalid VT oid %s for a result', roid)
else:
if vt_aux.get('qod_type'):
qod_t = vt_aux.get('qod_type')
rqod = self.nvti.QOD_TYPES[qod_t]
elif vt_aux.get('qod'):
rqod = vt_aux.get('qod')
rname = vt_aux.get('name')
if res["result_type"] == 'ERRMSG':
res_list.add_scan_error_to_list(
host=current_host,
hostname=rhostname,
name=rname,
value=res["value"],
port=res["port"],
test_id=roid,
uri=ruri,
)
elif (res["result_type"] == 'HOST_START'
or res["result_type"] == 'HOST_END'):
res_list.add_scan_log_to_list(
host=current_host,
name=res["result_type"],
value=res["value"],
)
elif res["result_type"] == 'LOG':
res_list.add_scan_log_to_list(
host=current_host,
hostname=rhostname,
name=rname,
value=res["value"],
port=res["port"],
qod=rqod,
test_id=roid,
uri=ruri,
)
elif res["result_type"] == 'HOST_DETAIL':
res_list.add_scan_host_detail_to_list(
host=current_host,
hostname=rhostname,
name=rname,
value=res["value"],
uri=ruri,
)
elif res["result_type"] == 'ALARM':
rseverity = vthelper.get_severity_score(vt_aux)
res_list.add_scan_alarm_to_list(
host=current_host,
hostname=rhostname,
name=rname,
value=res["value"],
port=res["port"],
test_id=roid,
severity=rseverity,
qod=rqod,
uri=ruri,
)
# To process non-scanned dead hosts when
# test_alive_host_only in openvas is enable
elif res["result_type"] == 'DEADHOST':
try:
total_dead = total_dead + int(res["value"])
except TypeError:
logger.debug('Error processing dead host count')
# To update total host count
if res["result_type"] == 'HOSTS_COUNT':
try:
count_total = int(res["value"])
logger.debug(
'%s: Set total hosts counted by OpenVAS: %d',
scan_id,
count_total,
)
self.set_scan_total_hosts(scan_id, count_total)
except TypeError:
logger.debug('Error processing total host count')
# Insert result batch into the scan collection table.
if len(res_list):
self.scan_collection.add_result_list(scan_id, res_list)
logger.debug(
'%s: Inserting %d results into scan collection table',
scan_id,
len(res_list),
)
if total_dead:
logger.debug(
'%s: Set dead hosts counted by OpenVAS: %d',
scan_id,
total_dead,
)
self.scan_collection.set_amount_dead_hosts(scan_id,
total_dead=total_dead)
return len(res_list) > 0
