Bug #71050 [Com]: SubjectAltName (SAN) is Not included in openssl_csr_sign of a new CSR

Edit report at https://bugs.php.net/bug.php?id=71050&edit=1 ID: 71050 Comment by: bouvrette dot nicolas at gmail dot com Reported by: jimmmaaay at hotmail dot com Summary: SubjectAltName (SAN) is Not included in openssl_csr_sign of a new CSR Status: Open Type: Bug Package: OpenSSL related Operating System: Windows & CentOS 6.7 PHP Version: 7.0.0 Block user comment: N Private report: N New Comment: While I agree that this is more of a very annoying missing feature rather than a bug, I don't understand why this is not being implemented after all this time? We're in 2017, there are ways to automatically get free HTTPS certificates (letsencrypt). Most other language make this easy but PHP is way behind. The code I wrote to make this work is what I qualify "an ugly hack". I don't understand what is the goal to make this so complicated that people actually would consider moving to an other language... Previous Comments: ------------------------------------------------------------------------ [2017-07-24 13:54:00] doldev at snowgarden dot ch The POC [1] reads the information for the certificate from the local config file. The POC is only an extended version which extract SAN the information from a CSR. You could easily adopt the script to meet your needs. The magic happens in this line => [2] [1] https://gist.github.com/dol/e9f3d682529ae7ee368f0e6862e16a87 [2] https://gist.github.com/dol/e9f3d682529ae7ee368f0e6862e16a87#file-cert-php-L34 ------------------------------------------------------------------------ [2017-07-24 13:43:52] spam2 at rhsoft dot net DAMEND what do you think is the "You can finetune the CSR signing by configargs. See openssl_csr_new() for more information about configargs" supposed to do? there is *nothing* to copy from the CSR - openssl_csr_sign() is feeded *with a explicit openssl.conf file* and if you would look at what i posted you would see that and hence all your "I hope it clear that the certificate not automatically inherits all the x509 extensions from the CSR" is *nonsense* becaus eit is not asked to do so - it should read it from the *local config file* ------------------------------------------------------------------------ [2017-07-24 13:34:44] doldev at snowgarden dot ch I repeat myself. This is not a bug. The extensions are not automatically copied over from a CSR to the finale certificate. Please read this explanation [1] which summaries the problem and security issue quite well. To achieve the goal of signing a CSR with the SubjectAltName you may have to put some effort into. I put together an small POC [2] to illustrate a possible way. Please make sure you understand the security implications when receiving a CSR from a third party and then sign it. Make sure you validate and copy only the relevant x509 extension to the finale certificate. An other possibility is to use the sop/x509 library [3] (used in the POC) the construct you certificate. PS to Harald: Eine Auffrisching zum Thema Netiquette [4] würde dir sicherlich gut tun. [5] [1] https://github.com/chef-cookbooks/openssl/issues/37#issuecomment-259021438 [2] https://gist.github.com/dol/e9f3d682529ae7ee368f0e6862e16a87 [3] https://packagist.org/packages/sop/x509 [4] https://de.wikipedia.org/wiki/Netiquette [5] https://tools.ietf.org/html/rfc1855 ------------------------------------------------------------------------ [2017-07-24 09:50:36] spam2 at rhsoft dot net god damned $csr = openssl_csr_new($dn, $private_key, $key_config); $self_signed = openssl_csr_sign($csr, NULL, $private_key, 3650, $key_config); $key_config points with 'config' to a temporary "openssl.conf" and while the CSR has the SAN-Names the certificate does not and that means pretty sure that openssl_csr_sign() compoletly ignores the config file which is a MAJOR BUG __________________________________________ [ req ] distinguished_name = req_distinguished_name req_extensions = v3_req [ req_distinguished_name ] [ v3_req ] basicConstraints = CA:FALSE keyUsage = nonRepudiation, digitalSignature, keyEncipherment subjectAltName = @alt_names [ alt_names ] DNS.1 = www.test.rh DNS.2 = test.rh DNS.3 = test.thelounge.net __________________________________________ [csr] => Certificate Request: Data: Version: 0 (0x0) Subject: C=AT, ST=Vienna, L=Vienna, O=the lounge interactive design gmbh, OU=Administration, CN=www.test.rh Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (3072 bit) Modulus: 00:9c:2c:b0:19:42:50:83:ed:c7:5c:d8:f7:c3:f7: 13:d5:17:a5:01:37:40:9a:e5:7f:43:88:22:35:89: 41:1b:b6:73:d7:f5:91:92:a9:54:b7:51:72:80:ef: 85:22:df:ac:bc:87:d3:85:f6:8a:72:35:2c:b6:16: 5b:d5:24:cb:4d:0f:b7:95:05:52:61:4f:bd:68:d0: 8e:8d:b4:86:e0:0c:02:03:63:e2:01:44:8a:d3:52: 24:c0:c1:07:a2:30:b2:29:9d:6c:c6:54:6b:aa:40: d5:ac:6f:2c:e0:ea:8d:31:4e:e1:01:4c:3d:b0:27: 07:1b:c5:39:01:a3:e6:ad:a5:c6:b4:76:8a:2d:ab: 5c:a5:11:97:8a:f1:81:cd:ba:41:5f:88:34:a0:09: d3:80:7c:32:b7:1c:74:1f:84:a3:40:2c:54:08:b7: b6:08:f5:ad:34:0e:88:bb:c0:68:3f:04:f4:8f:0a: 09:bb:e4:6d:24:18:24:5f:62:73:d6:7a:d0:a2:c4: d4:b2:02:3b:92:50:c4:3f:a4:28:2c:b9:54:0c:b1: da:2d:d3:9a:fb:88:23:9f:46:3b:7b:8d:f4:c5:8f: 3b:af:b6:e1:98:26:fd:31:b4:da:bd:4f:31:52:8c: 86:1f:20:88:0c:c1:6d:3f:dd:ed:66:51:9e:99:a9: aa:82:2c:0d:2f:b1:39:70:e7:b3:e3:cb:af:54:7f: 02:f0:9d:eb:34:d3:d5:94:fd:30:58:15:3a:4b:67: a2:0b:40:30:35:ee:b7:50:81:8e:6e:3a:bb:76:25: fa:66:ed:3d:d1:ad:ed:2f:24:b8:0e:e2:f8:04:99: a6:25:96:4b:a9:84:c1:71:c0:7d:b1:b7:bd:c8:3b: 78:25:41:f6:76:69:aa:4b:4c:be:37:b8:e2:1b:ed: fc:25:31:b6:0c:39:47:22:4e:8b:df:8d:7a:86:81: ae:df:c0:3b:0d:bc:23:30:b9:5b:2e:a1:b8:89:f4: a4:dc:90:b2:eb:58:51:86:d0:b5 Exponent: 65537 (0x10001) Attributes: Requested Extensions: X509v3 Basic Constraints: CA:FALSE X509v3 Key Usage: Digital Signature, Non Repudiation, Key Encipherment X509v3 Subject Alternative Name: DNS:www.test.rh, DNS:test.rh, DNS:test.thelounge.net Signature Algorithm: sha256WithRSAEncryption 66:d0:4e:4d:6c:19:cc:c5:90:a4:2d:26:0d:9b:d4:12:80:d1: 8c:d6:7c:e5:9c:62:fc:66:66:6e:9c:53:da:a0:08:ff:9c:5e: 44:f9:a0:f8:fe:cd:82:66:9f:c2:38:d1:47:28:40:4e:08:6b: f2:a5:89:1b:36:25:3a:69:5b:20:e0:ee:eb:95:a4:69:2e:c9: a5:8d:4b:e7:1a:28:e8:b0:2f:27:78:b1:da:4f:cc:21:ed:93: 51:95:dd:77:f5:b9:b3:c6:cf:2b:3a:c8:b7:45:40:71:b3:11: 29:4d:d1:4e:2b:c4:b4:53:f7:e0:25:69:cf:90:4b:7a:7b:61: 9f:2e:75:2b:46:95:40:32:7b:8a:2f:f9:8d:e6:ed:e0:a2:1e: de:67:15:fe:96:18:3c:7a:33:6b:6f:24:55:1e:8f:bc:7c:47: 6e:bd:47:ab:5b:44:d9:62:84:39:87:71:05:69:95:5e:42:76: ab:05:fb:6b:84:49:b2:bc:bf:d2:d1:7e:d7:ab:3c:4a:69:ee: ac:ef:6a:aa:30:1a:84:f5:af:4f:ca:b9:0c:9e:d1:be:fa:1b: ed:38:f4:09:ae:a8:b3:0c:e4:9a:f4:5d:d7:b0:78:01:36:af: 14:2a:9c:04:84:e4:f2:bd:6d:42:23:a3:0e:5e:c6:4e:d1:17: 8f:67:b7:56:00:e8:38:32:12:28:69:c1:14:e8:68:03:0e:79: e7:25:47:22:70:8e:f8:ee:ef:78:e6:ce:dc:54:fa:ad:1c:a4: cd:27:e1:ff:56:29:31:a2:1e:1f:a9:09:c0:12:3f:56:26:af: e4:52:07:fb:29:4b:e2:1d:dc:61:e9:9f:ef:2f:c4:35:04:b6: b2:98:9d:da:4a:4e:39:83:d4:e6:a9:fd:eb:8d:d4:34:16:9d: 5f:cf:42:53:32:68:53:9c:72:4f:ac:87:df:eb:7c:f8:92:69: 57:b3:1b:fb:f6:b5:b5:3b:e3:c8:d0:3e:15:13:76:f6:91:81: fa:bd:fd:8e:99:d2 __________________________________________ [self_signed_pem] => Certificate: Data: Version: 3 (0x2) Serial Number: 0 (0x0) Signature Algorithm: sha256WithRSAEncryption Issuer: C=AT, ST=Vienna, L=Vienna, O=the lounge interactive design gmbh, OU=Administration, CN=www.test.rh Validity Not Before: Jul 24 09:44:41 2017 GMT Not After : Jul 22 09:44:41 2027 GMT Subject: C=AT, ST=Vienna, L=Vienna, O=the lounge interactive design gmbh, OU=Administration, CN=www.test.rh Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (3072 bit) Modulus: 00:9c:2c:b0:19:42:50:83:ed:c7:5c:d8:f7:c3:f7: 13:d5:17:a5:01:37:40:9a:e5:7f:43:88:22:35:89: 41:1b:b6:73:d7:f5:91:92:a9:54:b7:51:72:80:ef: 85:22:df:ac:bc:87:d3:85:f6:8a:72:35:2c:b6:16: 5b:d5:24:cb:4d:0f:b7:95:05:52:61:4f:bd:68:d0: 8e:8d:b4:86:e0:0c:02:03:63:e2:01:44:8a:d3:52: 24:c0:c1:07:a2:30:b2:29:9d:6c:c6:54:6b:aa:40: d5:ac:6f:2c:e0:ea:8d:31:4e:e1:01:4c:3d:b0:27: 07:1b:c5:39:01:a3:e6:ad:a5:c6:b4:76:8a:2d:ab: 5c:a5:11:97:8a:f1:81:cd:ba:41:5f:88:34:a0:09: d3:80:7c:32:b7:1c:74:1f:84:a3:40:2c:54:08:b7: b6:08:f5:ad:34:0e:88:bb:c0:68:3f:04:f4:8f:0a: 09:bb:e4:6d:24:18:24:5f:62:73:d6:7a:d0:a2:c4: d4:b2:02:3b:92:50:c4:3f:a4:28:2c:b9:54:0c:b1: da:2d:d3:9a:fb:88:23:9f:46:3b:7b:8d:f4:c5:8f: 3b:af:b6:e1:98:26:fd:31:b4:da:bd:4f:31:52:8c: 86:1f:20:88:0c:c1:6d:3f:dd:ed:66:51:9e:99:a9: aa:82:2c:0d:2f:b1:39:70:e7:b3:e3:cb:af:54:7f: 02:f0:9d:eb:34:d3:d5:94:fd:30:58:15:3a:4b:67: a2:0b:40:30:35:ee:b7:50:81:8e:6e:3a:bb:76:25: fa:66:ed:3d:d1:ad:ed:2f:24:b8:0e:e2:f8:04:99: a6:25:96:4b:a9:84:c1:71:c0:7d:b1:b7:bd:c8:3b: 78:25:41:f6:76:69:aa:4b:4c:be:37:b8:e2:1b:ed: fc:25:31:b6:0c:39:47:22:4e:8b:df:8d:7a:86:81: ae:df:c0:3b:0d:bc:23:30:b9:5b:2e:a1:b8:89:f4: a4:dc:90:b2:eb:58:51:86:d0:b5 Exponent: 65537 (0x10001) Signature Algorithm: sha256WithRSAEncryption 79:23:28:c4:4a:38:fb:e5:fd:b8:01:de:25:96:97:fe:ad:f7: 98:9e:ee:60:66:94:72:ff:13:2b:cc:96:b7:35:ff:1e:ea:a7: 60:39:4b:af:15:9a:0e:2d:14:46:ee:21:f8:17:e5:c5:0c:fe: ca:57:27:c6:40:c9:25:3d:71:70:36:ed:ec:36:e9:1d:40:6f: c6:81:ba:ef:ee:95:9f:0b:59:35:6d:96:44:54:80:e5:5c:63: 29:0d:83:6c:50:5f:80:01:ec:cd:16:76:bc:ee:9b:26:02:39: 9f:b8:f3:7e:01:d4:fe:e4:78:a6:27:4e:a5:54:7b:4d:9f:c5: 29:56:c5:70:df:6b:22:1d:bd:b9:9a:f5:b0:5f:9c:a1:72:79: a0:60:90:db:6c:13:88:48:1f:24:5e:1f:fb:9a:a7:3c:24:12: f1:a6:f5:a6:3b:78:47:bf:29:fc:25:22:59:21:f3:14:d2:6d: 65:8f:33:a2:0c:f6:c2:27:0e:5c:d5:ed:c8:1a:8f:d6:60:d0: 00:44:d5:9c:e0:30:e4:99:a1:d1:05:ff:af:bd:40:07:86:0e: 20:50:13:aa:9d:b2:7c:71:ee:4d:47:a0:56:3a:9c:f7:fe:64: 17:09:b4:45:de:85:34:30:b5:1b:bb:06:dd:ca:7f:8c:16:ea: c1:0b:34:32:1b:53:3b:60:94:85:3c:22:3f:fe:b7:5e:ea:86: 4b:97:76:0d:6a:7e:a5:be:3e:24:0b:91:6e:67:55:f2:c1:ed: 2f:b8:77:16:08:75:ee:9d:e0:62:4d:38:7c:16:e3:4b:c6:88: 08:62:49:3b:4b:c0:67:5e:e7:d3:11:99:c8:53:59:61:bc:23: 76:90:b4:15:8e:63:0d:e1:db:8c:14:54:dc:1e:21:17:46:16: 3a:81:f7:20:44:71:26:58:80:e6:1b:1a:66:0a:ab:2c:9a:d7: e8:9f:b3:4a:dd:14:9d:41:fc:d8:aa:82:e2:c9:3e:a1:63:8f: c1:64:00:98:6e:b3 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. 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