diff options
Diffstat (limited to 'test/openssl/test_ssl.rb')
| -rw-r--r-- | test/openssl/test_ssl.rb | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/test/openssl/test_ssl.rb b/test/openssl/test_ssl.rb index daaaa0a1e4..a3100a8c50 100644 --- a/test/openssl/test_ssl.rb +++ b/test/openssl/test_ssl.rb @@ -338,25 +338,32 @@ class OpenSSL::TestSSL < OpenSSL::SSLTestCase end def test_verify_certificate_identity - # creating NULL byte SAN certificate + [true, false].each do |criticality| + cert = create_null_byte_SAN_certificate(criticality) + assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, 'www.example.com')) + assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, 'www.example.com\0.evil.com')) + assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.255')) + assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.1')) + assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '13::17')) + assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, '13:0:0:0:0:0:0:17')) + end + end + + # Create NULL byte SAN certificate + def create_null_byte_SAN_certificate(critical = false) ef = OpenSSL::X509::ExtensionFactory.new cert = OpenSSL::X509::Certificate.new cert.subject = OpenSSL::X509::Name.parse "/DC=some/DC=site/CN=Some Site" - ext = ef.create_ext('subjectAltName', 'DNS:placeholder,IP:192.168.7.1,IP:13::17') + ext = ef.create_ext('subjectAltName', 'DNS:placeholder,IP:192.168.7.1,IP:13::17', critical) ext_asn1 = OpenSSL::ASN1.decode(ext.to_der) san_list_der = ext_asn1.value.reduce(nil) { |memo,val| val.tag == 4 ? val.value : memo } san_list_asn1 = OpenSSL::ASN1.decode(san_list_der) san_list_asn1.value[0].value = 'www.example.com\0.evil.com' - ext_asn1.value[1].value = san_list_asn1.to_der + pos = critical ? 2 : 1 + ext_asn1.value[pos].value = san_list_asn1.to_der real_ext = OpenSSL::X509::Extension.new ext_asn1 cert.add_extension(real_ext) - - assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, 'www.example.com')) - assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, 'www.example.com\0.evil.com')) - assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.255')) - assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.1')) - assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '13::17')) - assert_equal(true, OpenSSL::SSL.verify_certificate_identity(cert, '13:0:0:0:0:0:0:17')) + cert end def test_tlsext_hostname |