def get_severity_score(self, vt_aux: dict) -> Optional[float]:
"""Return the severity score for the given oid.
Arguments:
vt_aux: VT element from which to get the severity vector
Returns:
The calculated cvss base value. None if there is no severity
vector or severity type is not cvss base version 2.
"""
if vt_aux:
severity_type = vt_aux['severities'].get('severity_type')
severity_vector = vt_aux['severities'].get('severity_base_vector')
if severity_type == "cvss_base_v2" and severity_vector:
return CVSS.cvss_base_v2_value(severity_vector)
elif severity_type == "cvss_base_v3" and severity_vector:
return CVSS.cvss_base_v3_value(severity_vector)
return None
def testcvssv3(self):
vector = 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'
cvss_base = CVSS.cvss_base_v3_value(vector)
self.assertEqual(cvss_base, 3.8)