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Invalid OCSP certificates should raise ConnectionError on failed validation #1907

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merged 1 commit into from Jan 27, 2022
Merged

Invalid OCSP certificates should raise ConnectionError on failed validation #1907

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9 changes: 7 additions & 2 deletions redis/ocsp.py
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Expand Up @@ -56,9 +56,14 @@ def _check_certificate(issuer_cert, ocsp_bytes, validate=True):
raise AuthorizationError("you are not authorized to view this ocsp certificate")
if ocsp_response.response_status == ocsp.OCSPResponseStatus.SUCCESSFUL:
if ocsp_response.certificate_status != ocsp.OCSPCertStatus.GOOD:
return False
raise ConnectionError(
f'Received an {str(ocsp_response.certificate_status).split(".")[1]} '
"ocsp certificate status"
)
else:
return False
raise ConnectionError(
"failed to retrieve a sucessful response from the ocsp responder"
)

if ocsp_response.this_update >= datetime.datetime.now():
raise ConnectionError("ocsp certificate was issued in the future")
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10 changes: 7 additions & 3 deletions tests/test_ssl.py
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Expand Up @@ -107,7 +107,7 @@ def test_ssl_ocsp_called_withcrypto(self, request):
def test_valid_ocsp_cert_http(self):
from redis.ocsp import OCSPVerifier

hostnames = ["github.com", "aws.amazon.com", "ynet.co.il", "microsoft.com"]
hostnames = ["github.com", "aws.amazon.com", "ynet.co.il"]
for hostname in hostnames:
context = ssl.create_default_context()
with socket.create_connection((hostname, 443)) as sock:
Expand All @@ -124,7 +124,9 @@ def test_revoked_ocsp_certificate(self):
with socket.create_connection((hostname, 443)) as sock:
with context.wrap_socket(sock, server_hostname=hostname) as wrapped:
ocsp = OCSPVerifier(wrapped, hostname, 443)
assert ocsp.is_valid() is False
with pytest.raises(ConnectionError) as e:
assert ocsp.is_valid()
assert "REVOKED" in str(e)

@skip_if_nocryptography()
def test_unauthorized_ocsp(self):
Expand All @@ -147,7 +149,9 @@ def test_ocsp_not_present_in_response(self):
with socket.create_connection((hostname, 443)) as sock:
with context.wrap_socket(sock, server_hostname=hostname) as wrapped:
ocsp = OCSPVerifier(wrapped, hostname, 443)
assert ocsp.is_valid() is False
with pytest.raises(ConnectionError) as e:
assert ocsp.is_valid()
assert "from the" in str(e)

@skip_if_nocryptography()
def test_unauthorized_then_direct(self):
Expand Down