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wbond / certvalidator

Python library for validating X.509 certificates and paths
MIT License
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revocation_response is optional #10

Open rg7663 opened 6 years ago

rg7663 commented 6 years ago

According to rfc6960 (https://tools.ietf.org/html/rfc6960#section-4.2.1) the revocation reason is optional. Perhaps I have misunderstood some part of the spec, but as far as I can see (and have found in my own tests), the line 1101 in validate.py (https://github.com/wbond/certvalidator/blob/b69d3b745b5af9e5ccd4b9781407ab7e82076d6b/certvalidator/validate.py#L1101) does not first check that the revocation_info['revocation_reason'] is not Void before attempting to use the human_friendly property.

mzdeb commented 6 years ago

I agree, it's easy to reproduce:

from oscrypto import tls
from certvalidator import CertificateValidator, ValidationContext, errors

session = tls.TLSSession(manual_validation=True)
connection = tls.TLSSocket('revoked.grc.com', 443, session=session)

context = ValidationContext(allow_fetching=True)
validator = CertificateValidator(connection.certificate, connection.intermediates, context)
validator.validate_tls(connection.hostname)
matslindh commented 6 years ago

This was fixed in 80119e8fa80, but no new release to pypi was made after that change. @wbond Could we get a dotrelease to pypi that includes the patch?