From b45b2ff5412b29ae995027cdd1982a1dec0066d7 Mon Sep 17 00:00:00 2001 From: Tim Bielawa Date: Fri, 23 Jun 2017 11:20:06 -0400 Subject: Fix parsing certs with very large serial numbers Certificates with large serial numbers (such as those from commercial vendors) previously failed to parse due to absent logic in the FakeOpenSSLCertificate parser. This would cause the module to abort and break any other roles depending on the cert expiry checking results. * Identifies large serials in HEX format for decimal conversion * Update unit tests to parse a large serial --- .../library/openshift_cert_expiry.py | 21 +++++++++++++++++++-- roles/openshift_certificate_expiry/test/conftest.py | 5 ++++- 2 files changed, 23 insertions(+), 3 deletions(-) diff --git a/roles/openshift_certificate_expiry/library/openshift_cert_expiry.py b/roles/openshift_certificate_expiry/library/openshift_cert_expiry.py index 0242f5b43..44a8fa29b 100644 --- a/roles/openshift_certificate_expiry/library/openshift_cert_expiry.py +++ b/roles/openshift_certificate_expiry/library/openshift_cert_expiry.py @@ -104,6 +104,7 @@ platforms missing the Python OpenSSL library. self.extensions = [] PARSING_ALT_NAMES = False + PARSING_HEX_SERIAL = False for line in self.cert_string.split('\n'): l = line.strip() if PARSING_ALT_NAMES: @@ -114,10 +115,26 @@ platforms missing the Python OpenSSL library. PARSING_ALT_NAMES = False continue + if PARSING_HEX_SERIAL: + # Hex serials arrive colon-delimited + serial_raw = l.replace(':', '') + # Convert to decimal + self.serial = int('0x' + serial_raw, base=16) + PARSING_HEX_SERIAL = False + continue + # parse out the bits that we can if l.startswith('Serial Number:'): - # Serial Number: 11 (0xb) - # => 11 + # Decimal format: + # Serial Number: 11 (0xb) + # => 11 + # Hex Format (large serials): + # Serial Number: + # 0a:de:eb:24:04:75:ab:56:39:14:e9:5a:22:e2:85:bf + # => 14449739080294792594019643629255165375 + if l.endswith(':'): + PARSING_HEX_SERIAL = True + continue self.serial = int(l.split()[-2]) elif l.startswith('Not After :'): diff --git a/roles/openshift_certificate_expiry/test/conftest.py b/roles/openshift_certificate_expiry/test/conftest.py index 4ca35ecbc..df948fff0 100644 --- a/roles/openshift_certificate_expiry/test/conftest.py +++ b/roles/openshift_certificate_expiry/test/conftest.py @@ -23,7 +23,10 @@ VALID_CERTIFICATE_PARAMS = [ { 'short_name': 'combined', 'cn': 'combined.example.com', - 'serial': 6, + # Verify that HUGE serials parse correctly. + # Frobs PARSING_HEX_SERIAL in _parse_cert + # See https://bugzilla.redhat.com/show_bug.cgi?id=1464240 + 'serial': 14449739080294792594019643629255165375, 'uses': b'clientAuth, serverAuth', 'dns': ['etcd'], 'ip': ['10.0.0.2', '192.168.0.2'] -- cgit v1.2.3