def cvebuild(var):
"""Search for a CVE ID and return a STIX formatted response."""
cve = CVESearch()
data = json.loads(cve.id(var))
if data:
try:
from stix.utils import set_id_namespace
namespace = {NS: NS_PREFIX}
set_id_namespace(namespace)
except ImportError:
from mixbox.idgen import set_id_namespace
from mixbox.namespaces import Namespace
namespace = Namespace(NS, NS_PREFIX, "")
set_id_namespace(namespace)
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg.stix_header.handling = _marking()
# Define the exploit target
expt = ExploitTarget()
expt.title = data['id']
expt.description = data['summary']
expt.information_source = InformationSource(
identity=Identity(name="National Vulnerability Database"))
# Add the vulnerability object to the package object
expt.add_vulnerability(_vulnbuild(data))
# Add the COA object to the ET object
for coa in COAS:
expt.potential_coas.append(
CourseOfAction(
idref=coa['id'],
timestamp=expt.timestamp))
# Do some TTP stuff with CAPEC objects
if TTPON is True:
try:
for i in data['capec']:
pkg.add_ttp(_buildttp(i, expt))
except KeyError:
pass
expt.add_weakness(_weakbuild(data))
# Add the exploit target to the package object
pkg.add_exploit_target(expt)
xml = pkg.to_xml()
title = pkg.id_.split(':', 1)[-1]
# If the function is not imported then output the xml to a file.
if __name__ == '__main__':
_postconstruct(xml, title)
return xml
else:
sys.exit("[-] Error retrieving details for " + var)
def cvebuild(var):
"""Search for a CVE ID and return a STIX formatted response."""
cve = CVESearch()
data = json.loads(cve.id(var))
if data:
try:
from stix.utils import set_id_namespace
namespace = {NS: NS_PREFIX}
set_id_namespace(namespace)
except ImportError:
from mixbox.idgen import set_id_namespace
from mixbox.namespaces import Namespace
namespace = Namespace(NS, NS_PREFIX, "")
set_id_namespace(namespace)
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg.stix_header.handling = _marking()
# Define the exploit target
expt = ExploitTarget()
expt.title = data['id']
expt.description = data['summary']
expt.information_source = InformationSource(identity=Identity(
name="National Vulnerability Database"))
# Add the vulnerability object to the package object
expt.add_vulnerability(_vulnbuild(data))
# Add the COA object to the ET object
for coa in COAS:
expt.potential_coas.append(
CourseOfAction(idref=coa['id'], timestamp=expt.timestamp))
# Do some TTP stuff with CAPEC objects
if TTPON is True:
try:
for i in data['capec']:
pkg.add_ttp(_buildttp(i, expt))
except KeyError:
pass
expt.add_weakness(_weakbuild(data))
# Add the exploit target to the package object
pkg.add_exploit_target(expt)
xml = pkg.to_xml()
title = pkg.id_.split(':', 1)[-1]
# If the function is not imported then output the xml to a file.
if __name__ == '__main__':
_postconstruct(xml, title)
return xml
else:
sys.exit("[-] Error retrieving details for " + var)
def cvebuild(var):
"""Search for a CVE ID and return a STIX formatted response."""
cve = CVESearch()
data = json.loads(cve.id(var))
if data:
try:
from stix.utils import set_id_namespace
namespace = {NS: NS_PREFIX}
set_id_namespace(namespace)
except ImportError:
from stix.utils import idgen
from mixbox.namespaces import Namespace
namespace = Namespace(NS, NS_PREFIX, "")
idgen.set_id_namespace(namespace)
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg = STIXPackage()
pkg.stix_header = STIXHeader()
pkg.stix_header.handling = marking()
# Define the exploit target
expt = ExploitTarget()
expt.title = data['id']
expt.description = data['summary']
# Add the vulnerability object to the package object
expt.add_vulnerability(vulnbuild(data))
# Do some TTP stuff with CAPEC objects
try:
for i in data['capec']:
ttp = TTP()
ttp.title = "CAPEC-" + str(i['id'])
ttp.description = i['summary']
ttp.exploit_targets.append(ExploitTarget(idref=expt.id_))
pkg.add_ttp(ttp)
except KeyError:
pass
# Do some weakness stuff
if data['cwe'] != 'Unknown':
weak = Weakness()
weak.cwe_id = data['cwe']
expt.add_weakness(weak)
# Add the exploit target to the package object
pkg.add_exploit_target(expt)
xml = pkg.to_xml()
# If the function is not imported then output the xml to a file.
if __name__ == '__main__':
title = pkg.id_.split(':', 1)[-1]
with open(title + ".xml", "w") as text_file:
text_file.write(xml)
return xml
def buildTarget(input_dict):
# add incident and confidence
target = ExploitTarget()
target.title = input_dict['title']
target.description = input_dict['description']
if input_dict['vulnerability']:
target.add_vulnerability(input_dict['vulnerability'])
if input_dict['weakness']:
target.add_weakness(input_dict['weakness'])
if input_dict['configuration']:
target.configuration = input_dict['configuration']
if input_dict['informationSource']:
target.information_source = InformationSource(input_dict['informationSource'])
return target
from stix.exploit_target.vulnerability import CVSSVector, Vulnerability
from stix.exploit_target.weakness import Weakness
# Exploit Target 1
et1 = ExploitTarget(title='Apache HTTP Vulnerability - CVE-2018-1312')
et1.description = (
'In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, '
'the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed.'
'In a cluster of servers using a common Digest authentication configuration, '
'HTTP requests could be replayed across servers by an attacker without detection.'
)
et1.short_description = 'Apache httpd 2.2.0 to 2.4.29 is vulnerable'
# Exploit Target 1 - Weakness
weakness = Weakness(cwe_id='CWE-287', description='Improper Authentication')
et1.add_weakness(weakness)
# Exploit Target 1 - Configuration
config = Configuration(
cce_id='CCE-27686-5',
description='The Apache web server be run with the appropriate privileges.',
short_description='Configuration Short Description')
et1.add_configuration(config)
# Exploit Target 1 - Vulnerability
vuln = Vulnerability()
vuln.cve_id = 'CVE-2018-1312'
cvss = CVSSVector()
cvss.base_score = '6.8'
cvss.base_vector = 'AV:N/AC:M/Au:N/C:P/I:P/A:P'
vuln.cvss_score = cvss
