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base/SOURCES/00255-Fix-ssl-module-parsin...

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# HG changeset patch
# User Christian Heimes <christian@python.org>
# Date 1473197135 -7200
# Node ID 74805fd9e7343649372d0b9c76b4490b2975a674
# Parent 6f4f19217d9be12be7a9c86cf1e118b140564b4f
Issue #27691: Fix ssl module's parsing of GEN_RID subject alternative name fields in X.509 certs.
diff --git a/Lib/test/allsans.pem b/Lib/test/allsans.pem
new file mode 100644
--- /dev/null
+++ b/Lib/test/allsans.pem
@@ -0,0 +1,37 @@
+-----BEGIN PRIVATE KEY-----
+MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAOoy7/QOtTjQ0niE
+6uDcTwtkC0R2Tvy1AjVnXohCntZfdzbTGDoYTgXSOLsP8A697jUiJ8VCePGH50xG
+Z4DKnAF3a9O3a9nr2pLXb0iY3XOMv+YEBii7CfI+3oxFYgCl0sMgHzDD2ZTVYAsm
+DWgLUVsE2gHEccRwrM2tPf2EgR+FAgMBAAECgYEA3qyfyYVSeTrTYxO93x6ZaVMu
+A2IZp9zSxMQL9bKiI2GRj+cV2ebSCGbg2btFnD6qBor7FWsmYz+8g6FNN/9sY4az
+61rMqMtQvLBe+7L8w70FeTze4qQ4Y1oQri0qD6tBWhDVlpnbI5Py9bkZKD67yVUk
+elcEA/5x4PrYXkuqsAECQQD80NjT0mDvaY0JOOaQFSEpMv6QiUA8GGX8Xli7IoKb
+tAolPG8rQBa+qSpcWfDMTrWw/aWHuMEEQoP/bVDH9W4FAkEA7SYQbBAKnojZ5A3G
+kOHdV7aeivRQxQk/JN8Fb8oKB9Csvpv/BsuGxPKXHdhFa6CBTTsNRtHQw/szPo4l
+xMIjgQJAPoMxqibR+0EBM6+TKzteSL6oPXsCnBl4Vk/J5vPgkbmR7KUl4+7j8N8J
+b2554TrxKEN/w7CGYZRE6UrRd7ATNQJAWD7Yz41sli+wfPdPU2xo1BHljyl4wMk/
+EPZYbI/PCbdyAH/F935WyQTIjNeEhZc1Zkq6FwdOWw8ns3hrv3rKgQJAHXv1BqUa
+czGPIFxX2TNoqtcl6/En4vrxVB1wzsfzkkDAg98kBl7qsF+S3qujSzKikjeaVbI2
+/CyWR2P3yLtOmA==
+-----END PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+MIIDcjCCAtugAwIBAgIJAN5dc9TOWjB7MA0GCSqGSIb3DQEBCwUAMF0xCzAJBgNV
+BAYTAlhZMRcwFQYDVQQHDA5DYXN0bGUgQW50aHJheDEjMCEGA1UECgwaUHl0aG9u
+IFNvZnR3YXJlIEZvdW5kYXRpb24xEDAOBgNVBAMMB2FsbHNhbnMwHhcNMTYwODA1
+MTAyMTExWhcNMjYwODAzMTAyMTExWjBdMQswCQYDVQQGEwJYWTEXMBUGA1UEBwwO
+Q2FzdGxlIEFudGhyYXgxIzAhBgNVBAoMGlB5dGhvbiBTb2Z0d2FyZSBGb3VuZGF0
+aW9uMRAwDgYDVQQDDAdhbGxzYW5zMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB
+gQDqMu/0DrU40NJ4hOrg3E8LZAtEdk78tQI1Z16IQp7WX3c20xg6GE4F0ji7D/AO
+ve41IifFQnjxh+dMRmeAypwBd2vTt2vZ69qS129ImN1zjL/mBAYouwnyPt6MRWIA
+pdLDIB8ww9mU1WALJg1oC1FbBNoBxHHEcKzNrT39hIEfhQIDAQABo4IBODCCATQw
+ggEwBgNVHREEggEnMIIBI4IHYWxsc2Fuc6AeBgMqAwSgFwwVc29tZSBvdGhlciBp
+ZGVudGlmaWVyoDUGBisGAQUCAqArMCmgEBsOS0VSQkVST1MuUkVBTE2hFTAToAMC
+AQGhDDAKGwh1c2VybmFtZYEQdXNlckBleGFtcGxlLm9yZ4IPd3d3LmV4YW1wbGUu
+b3JnpGcwZTELMAkGA1UEBhMCWFkxFzAVBgNVBAcMDkNhc3RsZSBBbnRocmF4MSMw
+IQYDVQQKDBpQeXRob24gU29mdHdhcmUgRm91bmRhdGlvbjEYMBYGA1UEAwwPZGly
+bmFtZSBleGFtcGxlhhdodHRwczovL3d3dy5weXRob24ub3JnL4cEfwAAAYcQAAAA
+AAAAAAAAAAAAAAAAAYgEKgMEBTANBgkqhkiG9w0BAQsFAAOBgQAy16h+F+nOmeiT
+VWR0fc8F/j6FcadbLseAUaogcC15OGxCl4UYpLV88HBkABOoGCpP155qwWTwOrdG
+iYPGJSusf1OnJEbvzFejZf6u078bPd9/ZL4VWLjv+FPGkjd+N+/OaqMvgj8Lu99f
+3Y/C4S7YbHxxwff6C6l2Xli+q6gnuQ==
+-----END CERTIFICATE-----
diff --git a/Lib/test/make_ssl_certs.py b/Lib/test/make_ssl_certs.py
--- a/Lib/test/make_ssl_certs.py
+++ b/Lib/test/make_ssl_certs.py
@@ -20,7 +20,28 @@ req_template = """
CN = {hostname}
[req_x509_extensions]
- subjectAltName = DNS:{hostname}
+ subjectAltName = @san
+
+ [san]
+ DNS.1 = {hostname}
+ {extra_san}
+
+ [dir_sect]
+ C = XY
+ L = Castle Anthrax
+ O = Python Software Foundation
+ CN = dirname example
+
+ [princ_name]
+ realm = EXP:0, GeneralString:KERBEROS.REALM
+ principal_name = EXP:1, SEQUENCE:principal_seq
+
+ [principal_seq]
+ name_type = EXP:0, INTEGER:1
+ name_string = EXP:1, SEQUENCE:principals
+
+ [principals]
+ princ1 = GeneralString:username
[ ca ]
default_ca = CA_default
@@ -67,7 +88,7 @@ req_template = """
here = os.path.abspath(os.path.dirname(__file__))
-def make_cert_key(hostname, sign=False):
+def make_cert_key(hostname, sign=False, extra_san=''):
print("creating cert for " + hostname)
tempnames = []
for i in range(3):
@@ -75,8 +96,9 @@ def make_cert_key(hostname, sign=False):
tempnames.append(f.name)
req_file, cert_file, key_file = tempnames
try:
+ req = req_template.format(hostname=hostname, extra_san=extra_san)
with open(req_file, 'w') as f:
- f.write(req_template.format(hostname=hostname))
+ f.write(req)
args = ['req', '-new', '-days', '3650', '-nodes',
'-newkey', 'rsa:1024', '-keyout', key_file,
'-config', req_file]
@@ -120,7 +142,7 @@ def make_ca():
f.write('unique_subject = no')
with tempfile.NamedTemporaryFile("w") as t:
- t.write(req_template.format(hostname='our-ca-server'))
+ t.write(req_template.format(hostname='our-ca-server', extra_san=''))
t.flush()
with tempfile.NamedTemporaryFile() as f:
args = ['req', '-new', '-days', '3650', '-extensions', 'v3_ca', '-nodes',
@@ -171,6 +193,25 @@ if __name__ == '__main__':
f.write(key)
f.write(cert)
+ extra_san = [
+ 'otherName.1 = 1.2.3.4;UTF8:some other identifier',
+ 'otherName.2 = 1.3.6.1.5.2.2;SEQUENCE:princ_name',
+ 'email.1 = user@example.org',
+ 'DNS.2 = www.example.org',
+ # GEN_X400
+ 'dirName.1 = dir_sect',
+ # GEN_EDIPARTY
+ 'URI.1 = https://www.python.org/',
+ 'IP.1 = 127.0.0.1',
+ 'IP.2 = ::1',
+ 'RID.1 = 1.2.3.4.5',
+ ]
+
+ cert, key = make_cert_key('allsans', extra_san='\n'.join(extra_san))
+ with open('allsans.pem', 'w') as f:
+ f.write(key)
+ f.write(cert)
+
unmake_ca()
print("\n\nPlease change the values in test_ssl.py, test_parse_cert function related to notAfter,notBefore and serialNumber")
check_call(['openssl','x509','-in','keycert.pem','-dates','-serial','-noout'])
diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
index fa59641..9d5816b 100644
--- a/Lib/test/test_ssl.py
+++ b/Lib/test/test_ssl.py
@@ -57,6 +57,8 @@ CRLFILE = data_file("revocation.crl")
SIGNED_CERTFILE = data_file("keycert3.pem")
SIGNED_CERTFILE2 = data_file("keycert4.pem")
SIGNING_CA = data_file("pycacert.pem")
+# cert with all kinds of subject alt names
+ALLSANFILE = data_file("allsans.pem")
SVN_PYTHON_ORG_ROOT_CERT = data_file("https_svn_python_org_root.pem")
@@ -236,6 +238,28 @@ class BasicSocketTests(unittest.TestCase):
('IP Address', '2001:DB8:0:0:0:0:0:1\n'))
)
+ def test_parse_all_sans(self):
+ p = ssl._ssl._test_decode_cert(ALLSANFILE)
+ self.assertEqual(p['subjectAltName'],
+ (
+ ('DNS', 'allsans'),
+ ('othername', '<unsupported>'),
+ ('othername', '<unsupported>'),
+ ('email', 'user@example.org'),
+ ('DNS', 'www.example.org'),
+ ('DirName',
+ ((('countryName', 'XY'),),
+ (('localityName', 'Castle Anthrax'),),
+ (('organizationName', 'Python Software Foundation'),),
+ (('commonName', 'dirname example'),))),
+ ('URI', 'https://www.python.org/'),
+ ('IP Address', '127.0.0.1'),
+ ('IP Address', '0:0:0:0:0:0:0:1\n'),
+ ('Registered ID', '1.2.3.4.5')
+ )
+ )
+
+
def test_DER_to_PEM(self):
with open(SVN_PYTHON_ORG_ROOT_CERT, 'r') as f:
pem = f.read()
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -953,6 +953,35 @@ static PyObject *
PyTuple_SET_ITEM(t, 1, v);
break;
+ case GEN_RID:
+ t = PyTuple_New(2);
+ if (t == NULL)
+ goto fail;
+
+ v = PyUnicode_FromString("Registered ID");
+ if (v == NULL) {
+ Py_DECREF(t);
+ goto fail;
+ }
+ PyTuple_SET_ITEM(t, 0, v);
+
+ len = i2t_ASN1_OBJECT(buf, sizeof(buf)-1, name->d.rid);
+ if (len < 0) {
+ Py_DECREF(t);
+ _setSSLError(NULL, 0, __FILE__, __LINE__);
+ goto fail;
+ } else if (len >= (int)sizeof(buf)) {
+ v = PyUnicode_FromString("<INVALID>");
+ } else {
+ v = PyUnicode_FromStringAndSize(buf, len);
+ }
+ if (v == NULL) {
+ Py_DECREF(t);
+ goto fail;
+ }
+ PyTuple_SET_ITEM(t, 1, v);
+ break;
+
default:
/* for everything else, we use the OpenSSL print form */
switch (gntype) {
@@ -978,8 +1007,12 @@ static PyObject *
goto fail;
}
vptr = strchr(buf, ':');
- if (vptr == NULL)
+ if (vptr == NULL) {
+ PyErr_Format(PyExc_ValueError,
+ "Invalid value %.200s",
+ buf);
goto fail;
+ }
t = PyTuple_New(2);
if (t == NULL)
goto fail;