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Description
Expected Behavior
Using the exporters such as Excel or SVG using the default taxii source should retrieve the proper data and produce the expected exported output.
Actual Behavior
navlayers.ToExcel() hangs because the server "https://cti-taxii.mitre.org/taxii" has been retired as of December 18th blog link
Steps to Reproduce the Problem
For example: calling the following function navlayers.ToExcel(domain="enterprise", source="taxii") just hangs
Possible Solution
Migrating to the TAXII 2.1 server. The problem exists in navlayers/exporters/matrix_gen.py in the __init__ method of the MatrixGen class.
class MatrixGen:
"""A MatrixGen object."""
def __init__(self, source="taxii", resource=None, domain="enterprise"):
"""Initialize - Creates a matrix generator object.
:param source: Source to utilize (taxii, remote, or local)
:param resource: string path to local cache of stix data (local) or url of an ATT&CK Workbench (remote)
"""
self.convert_data = {}
self.collections = dict()
if source.lower() not in ["taxii", "local", "remote", "memorystore"]:
logger.error(
f"Unable to generate matrix, source {source} is not one of [taxii | remote | local | memorystore]"
)
raise ValueError
if source.lower() == "taxii":
self.server = Server("https://cti-taxii.mitre.org/taxii")
self.api_root = self.server.api_roots[0]
for collection in self.api_root.collections:
if collection.title != "PRE-ATT&CK":
tc = Collection("https://cti-taxii.mitre.org/stix/collections/" + collection.id)
self.collections[collection.title.split(" ")[0].lower()] = TAXIICollectionSource(tc)