[openssl-commits] [openssl] master update
Viktor Dukhovni
viktor at openssl.org
Wed May 23 15:19:35 UTC 2018
The branch master has been updated
via 55a6250f1e7336e8a7d89fb609eb23398715ff6f (commit)
via d02d80b2e80adfdde49f76cf7c7af4e013f45005 (commit)
from de9f5b3554274e27949941cbe74a07c8a5f25dbf (commit)
- Log -----------------------------------------------------------------
commit 55a6250f1e7336e8a7d89fb609eb23398715ff6f
Author: Viktor Dukhovni <openssl-users at dukhovni.org>
Date: Tue May 22 01:09:25 2018 -0400
Skip CN DNS name constraint checks when not needed
Only check the CN against DNS name contraints if the
`X509_CHECK_FLAG_NEVER_CHECK_SUBJECT` flag is not set, and either the
certificate has no DNS subject alternative names or the
`X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT` flag is set.
Add pertinent documentation, and touch up some stale text about
name checks and DANE.
Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Tim Hudson <tjh at openssl.org>
commit d02d80b2e80adfdde49f76cf7c7af4e013f45005
Author: Viktor Dukhovni <openssl-users at dukhovni.org>
Date: Tue May 15 23:41:20 2018 -0400
Limit scope of CN name constraints
Don't apply DNS name constraints to the subject CN when there's a
least one DNS-ID subjectAlternativeName.
Don't apply DNS name constraints to subject CN's that are sufficiently
unlike DNS names. Checked name must have at least two labels, with
all labels non-empty, no trailing '.' and all hyphens must be
internal in each label. In addition to the usual LDH characters,
we also allow "_", since some sites use these for hostnames despite
all the standards.
Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Tim Hudson <tjh at openssl.org>
-----------------------------------------------------------------------
Summary of changes:
crypto/asn1/a_strex.c | 50 ------------
crypto/include/internal/asn1_int.h | 1 -
crypto/x509/x509_vfy.c | 28 ++++++-
crypto/x509v3/v3_ncons.c | 134 ++++++++++++++++++++++++++-----
doc/man3/SSL_set1_host.pod | 2 +-
doc/man3/X509_VERIFY_PARAM_set_flags.pod | 21 ++++-
doc/man3/X509_check_host.pod | 7 +-
test/certs/alt1-cert.pem | 39 +++++----
test/certs/alt1-key.pem | 52 ++++++------
test/certs/badalt6-cert.pem | 35 ++++----
test/certs/badalt6-key.pem | 52 ++++++------
test/certs/badalt7-cert.pem | 33 ++++----
test/certs/badalt7-key.pem | 52 ++++++------
test/certs/badcn1-cert.pem | 20 +++++
test/certs/badcn1-key.pem | 28 +++++++
test/certs/goodcn1-cert.pem | 22 +++++
test/certs/goodcn1-key.pem | 28 +++++++
test/certs/setup.sh | 25 ++++--
test/recipes/25-test_verify.t | 8 +-
19 files changed, 418 insertions(+), 219 deletions(-)
create mode 100644 test/certs/badcn1-cert.pem
create mode 100644 test/certs/badcn1-key.pem
create mode 100644 test/certs/goodcn1-cert.pem
create mode 100644 test/certs/goodcn1-key.pem
diff --git a/crypto/asn1/a_strex.c b/crypto/asn1/a_strex.c
index 6a67bc8..ea4dd1c 100644
--- a/crypto/asn1/a_strex.c
+++ b/crypto/asn1/a_strex.c
@@ -624,53 +624,3 @@ int ASN1_STRING_to_UTF8(unsigned char **out, const ASN1_STRING *in)
*out = stmp.data;
return stmp.length;
}
-
-/* Return 1 if host is a valid hostname and 0 otherwise */
-int asn1_valid_host(const ASN1_STRING *host)
-{
- int hostlen = host->length;
- const unsigned char *hostptr = host->data;
- int type = host->type;
- int i;
- signed char width = -1;
- unsigned short chflags = 0, prevchflags;
-
- if (type > 0 && type < 31)
- width = tag2nbyte[type];
- if (width == -1 || hostlen == 0)
- return 0;
- /* Treat UTF8String as width 1 as any MSB set is invalid */
- if (width == 0)
- width = 1;
- for (i = 0 ; i < hostlen; i+= width) {
- prevchflags = chflags;
- /* Value must be <= 0x7F: check upper bytes are all zeroes */
- if (width == 4) {
- if (*hostptr++ != 0 || *hostptr++ != 0 || *hostptr++ != 0)
- return 0;
- } else if (width == 2) {
- if (*hostptr++ != 0)
- return 0;
- }
- if (*hostptr > 0x7f)
- return 0;
- chflags = char_type[*hostptr++];
- if (!(chflags & (CHARTYPE_HOST_ANY | CHARTYPE_HOST_WILD))) {
- /* Nothing else allowed at start or end of string */
- if (i == 0 || i == hostlen - 1)
- return 0;
- /* Otherwise invalid if not dot or hyphen */
- if (!(chflags & (CHARTYPE_HOST_DOT | CHARTYPE_HOST_HYPHEN)))
- return 0;
- /*
- * If previous is dot or hyphen then illegal unless both
- * are hyphens: as .- -. .. are all illegal
- */
- if (prevchflags & (CHARTYPE_HOST_DOT | CHARTYPE_HOST_HYPHEN)
- && ((prevchflags & CHARTYPE_HOST_DOT)
- || (chflags & CHARTYPE_HOST_DOT)))
- return 0;
- }
- }
- return 1;
-}
diff --git a/crypto/include/internal/asn1_int.h b/crypto/include/internal/asn1_int.h
index fdd5f1e..962c3c6 100644
--- a/crypto/include/internal/asn1_int.h
+++ b/crypto/include/internal/asn1_int.h
@@ -107,5 +107,4 @@ struct asn1_pctx_st {
unsigned long str_flags;
} /* ASN1_PCTX */ ;
-int asn1_valid_host(const ASN1_STRING *host);
int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb);
diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c
index 447f5e0..3a60d41 100644
--- a/crypto/x509/x509_vfy.c
+++ b/crypto/x509/x509_vfy.c
@@ -560,6 +560,27 @@ static int check_chain_extensions(X509_STORE_CTX *ctx)
return 1;
}
+static int has_san_id(X509 *x, int gtype)
+{
+ int i;
+ int ret = 0;
+ GENERAL_NAMES *gs = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
+
+ if (gs == NULL)
+ return 0;
+
+ for (i = 0; i < sk_GENERAL_NAME_num(gs); i++) {
+ GENERAL_NAME *g = sk_GENERAL_NAME_value(gs, i);
+
+ if (g->type == gtype) {
+ ret = 1;
+ break;
+ }
+ }
+ GENERAL_NAMES_free(gs);
+ return ret;
+}
+
static int check_name_constraints(X509_STORE_CTX *ctx)
{
int i;
@@ -658,7 +679,12 @@ static int check_name_constraints(X509_STORE_CTX *ctx)
int rv = NAME_CONSTRAINTS_check(x, nc);
/* If EE certificate check commonName too */
- if (rv == X509_V_OK && i == 0)
+ if (rv == X509_V_OK && i == 0
+ && (ctx->param->hostflags
+ & X509_CHECK_FLAG_NEVER_CHECK_SUBJECT) == 0
+ && ((ctx->param->hostflags
+ & X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT) != 0
+ || !has_san_id(x, GEN_DNS)))
rv = NAME_CONSTRAINTS_check_CN(x, nc);
switch (rv) {
diff --git a/crypto/x509v3/v3_ncons.c b/crypto/x509v3/v3_ncons.c
index 1f1996b..dea6c6c 100644
--- a/crypto/x509v3/v3_ncons.c
+++ b/crypto/x509v3/v3_ncons.c
@@ -297,48 +297,140 @@ int NAME_CONSTRAINTS_check(X509 *x, NAME_CONSTRAINTS *nc)
}
+static int cn2dnsid(ASN1_STRING *cn, unsigned char **dnsid, size_t *idlen)
+{
+ int utf8_length;
+ unsigned char *utf8_value;
+ int i;
+ int isdnsname = 0;
+
+ /* Don't leave outputs uninitialized */
+ *dnsid = NULL;
+ *idlen = 0;
+
+ /*-
+ * Per RFC 6125, DNS-IDs representing internationalized domain names appear
+ * in certificates in A-label encoded form:
+ *
+ * https://tools.ietf.org/html/rfc6125#section-6.4.2
+ *
+ * The same applies to CNs which are intended to represent DNS names.
+ * However, while in the SAN DNS-IDs are IA5Strings, as CNs they may be
+ * needlessly encoded in 16-bit Unicode. We perform a conversion to UTF-8
+ * to ensure that we get an ASCII representation of any CNs that are
+ * representable as ASCII, but just not encoded as ASCII. The UTF-8 form
+ * may contain some non-ASCII octets, and that's fine, such CNs are not
+ * valid legacy DNS names.
+ *
+ * Note, 'int' is the return type of ASN1_STRING_to_UTF8() so that's what
+ * we must use for 'utf8_length'.
+ */
+ if ((utf8_length = ASN1_STRING_to_UTF8(&utf8_value, cn)) < 0)
+ return X509_V_ERR_OUT_OF_MEM;
+
+ /*
+ * Some certificates have had names that include a *trailing* NUL byte.
+ * Remove these harmless NUL characters. They would otherwise yield false
+ * alarms with the following embedded NUL check.
+ */
+ while (utf8_length > 0 && utf8_value[utf8_length - 1] == '\0')
+ --utf8_length;
+
+ /* Reject *embedded* NULs */
+ if ((size_t)utf8_length != strlen((char *)utf8_value)) {
+ OPENSSL_free(utf8_value);
+ return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
+ }
+
+ /*
+ * XXX: Deviation from strict DNS name syntax, also check names with '_'
+ * Check DNS name syntax, any '-' or '.' must be internal,
+ * and on either side of each '.' we can't have a '-' or '.'.
+ *
+ * If the name has just one label, we don't consider it a DNS name. This
+ * means that "CN=sometld" cannot be precluded by DNS name constraints, but
+ * that is not a problem.
+ */
+ for (i = 0; i < utf8_length; ++i) {
+ unsigned char c = utf8_value[i];
+
+ if ((c >= 'a' && c <= 'z')
+ || (c >= 'A' && c <= 'Z')
+ || (c >= '0' && c <= '9')
+ || c == '_')
+ continue;
+
+ /* Dot and hyphen cannot be first or last. */
+ if (i > 0 && i < utf8_length - 1) {
+ if (c == '-')
+ continue;
+ /*
+ * Next to a dot the preceding and following characters must not be
+ * another dot or a hyphen. Otherwise, record that the name is
+ * plausible, since it has two or more labels.
+ */
+ if (c == '.'
+ && utf8_value[i + 1] != '.'
+ && utf8_value[i - 1] != '-'
+ && utf8_value[i + 1] != '-') {
+ isdnsname = 1;
+ continue;
+ }
+ }
+ isdnsname = 0;
+ break;
+ }
+
+ if (isdnsname) {
+ *dnsid = utf8_value;
+ *idlen = (size_t)utf8_length;
+ return X509_V_OK;
+ }
+ OPENSSL_free(utf8_value);
+ return X509_V_OK;
+}
+
+/*
+ * Check CN against DNS-ID name constraints.
+ */
int NAME_CONSTRAINTS_check_CN(X509 *x, NAME_CONSTRAINTS *nc)
{
int r, i;
- X509_NAME *nm;
-
+ X509_NAME *nm = X509_get_subject_name(x);
ASN1_STRING stmp;
GENERAL_NAME gntmp;
+
stmp.flags = 0;
stmp.type = V_ASN1_IA5STRING;
gntmp.type = GEN_DNS;
gntmp.d.dNSName = &stmp;
- nm = X509_get_subject_name(x);
-
/* Process any commonName attributes in subject name */
for (i = -1;;) {
X509_NAME_ENTRY *ne;
- ASN1_STRING *hn;
+ ASN1_STRING *cn;
+ unsigned char *idval;
+ size_t idlen;
i = X509_NAME_get_index_by_NID(nm, NID_commonName, i);
if (i == -1)
break;
ne = X509_NAME_get_entry(nm, i);
- hn = X509_NAME_ENTRY_get_data(ne);
- /* Only process attributes that look like host names */
- if (asn1_valid_host(hn)) {
- unsigned char *h;
- int hlen = ASN1_STRING_to_UTF8(&h, hn);
- if (hlen <= 0)
- return X509_V_ERR_OUT_OF_MEM;
+ cn = X509_NAME_ENTRY_get_data(ne);
- stmp.length = hlen;
- stmp.data = h;
-
- r = nc_match(&gntmp, nc);
-
- OPENSSL_free(h);
+ /* Only process attributes that look like host names */
+ if ((r = cn2dnsid(cn, &idval, &idlen)) != X509_V_OK)
+ return r;
+ if (idlen == 0)
+ continue;
- if (r != X509_V_OK)
- return r;
- }
+ stmp.length = idlen;
+ stmp.data = idval;
+ r = nc_match(&gntmp, nc);
+ OPENSSL_free(idval);
+ if (r != X509_V_OK)
+ return r;
}
return X509_V_OK;
}
diff --git a/doc/man3/SSL_set1_host.pod b/doc/man3/SSL_set1_host.pod
index 9e0210d..b4d7d5e 100644
--- a/doc/man3/SSL_set1_host.pod
+++ b/doc/man3/SSL_set1_host.pod
@@ -56,7 +56,7 @@ is cleared or freed, or a renegotiation takes place. Applications
must not free the return value.
SSL clients are advised to use these functions in preference to
-explicitly calling L<X509_check_host(3)>. Hostname checks are out
+explicitly calling L<X509_check_host(3)>. Hostname checks may be out
of scope with the RFC7671 DANE-EE(3) certificate usage, and the
internal check will be suppressed as appropriate when DANE is
enabled.
diff --git a/doc/man3/X509_VERIFY_PARAM_set_flags.pod b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
index 7765029..61b52ef 100644
--- a/doc/man3/X509_VERIFY_PARAM_set_flags.pod
+++ b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
@@ -133,14 +133,29 @@ B<name> clearing any previously specified host name or names. If
B<name> is NULL, or empty the list of hostnames is cleared, and
name checks are not performed on the peer certificate. If B<name>
is NUL-terminated, B<namelen> may be zero, otherwise B<namelen>
-must be set to the length of B<name>. When a hostname is specified,
+must be set to the length of B<name>.
+
+When a hostname is specified,
certificate verification automatically invokes L<X509_check_host(3)>
with flags equal to the B<flags> argument given to
X509_VERIFY_PARAM_set_hostflags() (default zero). Applications
are strongly advised to use this interface in preference to explicitly
-calling L<X509_check_host(3)>, hostname checks are out of scope
+calling L<X509_check_host(3)>, hostname checks may be out of scope
with the DANE-EE(3) certificate usage, and the internal check will
-be suppressed as appropriate when DANE support is added to OpenSSL.
+be suppressed as appropriate when DANE verification is enabled.
+
+When the subject CommonName will not be ignored, whether as a result of the
+B<X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT> host flag, or because no DNS subject
+alternative names are present in the certificate, any DNS name constraints in
+issuer certificates apply to the subject CommonName as well as the subject
+alternative name extension.
+
+When the subject CommonName will be ignored, whether as a result of the
+B<X509_CHECK_FLAG_NEVER_CHECK_SUBJECT> host flag, or because some DNS subject
+alternative names are present in the certificate, DNS name constraints in
+issuer certificates will not be applied to the subject DN.
+As described in X509_check_host(3) the B<X509_CHECK_FLAG_NEVER_CHECK_SUBJECT>
+flag takes precendence over the B<X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT> flag.
X509_VERIFY_PARAM_get_hostflags() returns any host flags previously set via a
call to X509_VERIFY_PARAM_set_hostflags().
diff --git a/doc/man3/X509_check_host.pod b/doc/man3/X509_check_host.pod
index 7b96b7c..dba6a69 100644
--- a/doc/man3/X509_check_host.pod
+++ b/doc/man3/X509_check_host.pod
@@ -93,6 +93,9 @@ consider the subject DN even if the certificate contains no subject alternative
names of the right type (DNS name or email address as appropriate); the default
is to use the subject DN when no corresponding subject alternative names are
present.
+If both B<X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT> and
+B<X509_CHECK_FLAG_NEVER_CHECK_SUBJECT> are specified, the latter takes
+precedence and the subject DN is not checked for matching names.
If set, B<X509_CHECK_FLAG_NO_WILDCARDS> disables wildcard
expansion; this only applies to B<X509_check_host>.
@@ -128,9 +131,9 @@ NULs.
Applications are encouraged to use X509_VERIFY_PARAM_set1_host()
rather than explicitly calling L<X509_check_host(3)>. Host name
-checks are out of scope with the DANE-EE(3) certificate usage,
+checks may be out of scope with the DANE-EE(3) certificate usage,
and the internal checks will be suppressed as appropriate when
-DANE support is added to OpenSSL.
+DANE support is enabled.
=head1 SEE ALSO
diff --git a/test/certs/alt1-cert.pem b/test/certs/alt1-cert.pem
index b94d0ea..d68b0e5 100644
--- a/test/certs/alt1-cert.pem
+++ b/test/certs/alt1-cert.pem
@@ -1,22 +1,21 @@
-----BEGIN CERTIFICATE-----
-MIIDlTCCAn2gAwIBAgIBAjANBgkqhkiG9w0BAQsFADAXMRUwEwYDVQQDDAxUZXN0
-IE5DIENBIDEwIBcNMTYwNzA5MTQ0ODExWhgPMjExNjA3MTAxNDQ4MTFaMGgxIzAh
-BgNVBAoMGkdvb2QgTkMgVGVzdCBDZXJ0aWZpY2F0ZSAxMRUwEwYDVQQDDAx3d3cu
-Z29vZC5vcmcxEzARBgNVBAMMCkpvZSBCbG9nZ3MxFTATBgNVBAMMDGFueS5nb29k
-LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALAv1X8S8uUpnjTa
-3bv7m1jJbbX7bC9w7k4TfxiU5XL/m3EhN//EUBJSoamy6vFC6oy/6jA8XmptlVrY
-Sp3ZKFdjdZh+CyYZKcrv4JReF2lfRIINn6d6EgcAobGTNwdcv67xuNtMi0meAvmK
-gLjOa/IhCHNC+l8vNDJx/a+7mxH+yNxPL6lC/kJMja6oaYndx74WJpPC22LJ/cCp
-xspKKsoPYYjk0BX9RvbKO8s4b86Wjzzntht+NpQ4LLh9XwPZog11qGE4UIrsV8XA
-YxJrMGQNZd69cnCOz8vnOVCszFOa4qVvXeAGr0iFlZAXbQJevpiiXaXHMEt8C1qH
-xpcW8DcCAwEAAaOBmDCBlTAdBgNVHQ4EFgQUw8nB25NP0gUaFCrOwAO5KzllnREw
-HwYDVR0jBBgwFoAUCNGb+ebVZHCg8Wsanu1S2t31UEMwCQYDVR0TBAIwADBIBgNV
-HREEQTA/ggx3d3cuZ29vZC5vcmeCDGFueS5nb29kLmNvbYENZ29vZEBnb29kLm9y
-Z4EMYW55QGdvb2QuY29thwTAqAABMA0GCSqGSIb3DQEBCwUAA4IBAQBUnDMrg1py
-8/iYXzs11Qbw7bBhc/HQDpu5QVgriaX2zDUpTLSEUV7qZFSHmwWm91ILw2VA1Xni
-ua2sF19o/tJT0ZHpapkfqGpfsym2H04NDMKy0l0fSZhlCB5Kv5wpiFt9hBUrxS/2
-Dd6Kg+Ka02nD5QBXSAk/xz0FmgezzGGCLjg85/Sfe9Y7tNhQXh3HuGXuJizYccdQ
-Fh1IAFYW3DZoDKS7dDTCltvDEma/2IE684+CRJiA6PH9rYfJ1CCUfAMpyA85CxKT
-P68GDKI++WoUgM8LDfxS0KOL7A9cqcpM2L27hjyEgnqIBPHFfm9fxztBotuCTl5L
-vRlTFVjv65nn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-----END CERTIFICATE-----
diff --git a/test/certs/alt1-key.pem b/test/certs/alt1-key.pem
index b5d4d32..6df050a 100644
--- a/test/certs/alt1-key.pem
+++ b/test/certs/alt1-key.pem
@@ -1,28 +1,28 @@
-----BEGIN PRIVATE KEY-----
-MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQCwL9V/EvLlKZ40
-2t27+5tYyW21+2wvcO5OE38YlOVy/5txITf/xFASUqGpsurxQuqMv+owPF5qbZVa
-2Eqd2ShXY3WYfgsmGSnK7+CUXhdpX0SCDZ+nehIHAKGxkzcHXL+u8bjbTItJngL5
-ioC4zmvyIQhzQvpfLzQycf2vu5sR/sjcTy+pQv5CTI2uqGmJ3ce+FiaTwttiyf3A
-qcbKSirKD2GI5NAV/Ub2yjvLOG/Olo8857YbfjaUOCy4fV8D2aINdahhOFCK7FfF
-wGMSazBkDWXevXJwjs/L5zlQrMxTmuKlb13gBq9IhZWQF20CXr6Yol2lxzBLfAta
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-----END PRIVATE KEY-----
diff --git a/test/certs/badalt6-cert.pem b/test/certs/badalt6-cert.pem
index fbe040b..f41568f 100644
--- a/test/certs/badalt6-cert.pem
+++ b/test/certs/badalt6-cert.pem
@@ -1,22 +1,21 @@
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
diff --git a/test/certs/badalt6-key.pem b/test/certs/badalt6-key.pem
index 203a4c7..782d693 100644
--- a/test/certs/badalt6-key.pem
+++ b/test/certs/badalt6-key.pem
@@ -1,28 +1,28 @@
-----BEGIN PRIVATE KEY-----
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+m1rTfab8O+tOOGKGyzfouD2A
-----END PRIVATE KEY-----
diff --git a/test/certs/badalt7-cert.pem b/test/certs/badalt7-cert.pem
index b515ba4..4fa81b3 100644
--- a/test/certs/badalt7-cert.pem
+++ b/test/certs/badalt7-cert.pem
@@ -1,23 +1,22 @@
-----BEGIN CERTIFICATE-----
-MIID1DCCArygAwIBAgIBAjANBgkqhkiG9w0BAQsFADAXMRUwEwYDVQQDDAxUZXN0
-IE5DIENBIDEwIBcNMTYwNzA5MTQ0ODExWhgPMjExNjA3MTAxNDQ4MTFaMIGmMTsw
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-----END CERTIFICATE-----
diff --git a/test/certs/badalt7-key.pem b/test/certs/badalt7-key.pem
index 50557e8..b453f1f 100644
--- a/test/certs/badalt7-key.pem
+++ b/test/certs/badalt7-key.pem
@@ -1,28 +1,28 @@
-----BEGIN PRIVATE KEY-----
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-----END PRIVATE KEY-----
diff --git a/test/certs/badcn1-cert.pem b/test/certs/badcn1-cert.pem
new file mode 100644
index 0000000..3b3bad6
--- /dev/null
+++ b/test/certs/badcn1-cert.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
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+yXZFsQ//q7ATwlcHyB81B+X16AI=
+-----END CERTIFICATE-----
diff --git a/test/certs/badcn1-key.pem b/test/certs/badcn1-key.pem
new file mode 100644
index 0000000..dbcf4b5
--- /dev/null
+++ b/test/certs/badcn1-key.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
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+8PbOMUy3oK6j+GMP/xRNI76RtA==
+-----END PRIVATE KEY-----
diff --git a/test/certs/goodcn1-cert.pem b/test/certs/goodcn1-cert.pem
new file mode 100644
index 0000000..d9205e0
--- /dev/null
+++ b/test/certs/goodcn1-cert.pem
@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
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+u7nhn7s=
+-----END CERTIFICATE-----
diff --git a/test/certs/goodcn1-key.pem b/test/certs/goodcn1-key.pem
new file mode 100644
index 0000000..2ad660c
--- /dev/null
+++ b/test/certs/goodcn1-key.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDDigxInlYVjHtr
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+PkP+MP5UbVGWE+uUw821mgKsjNSpGKcjhwM8uXBjAoGAFEU3O8gQXfocVB8lxUeU
+c0inLdAIgiw/36NPuW4NwKxzLOmHzlmvn7C98ihnbnGoQ0XBRfLw8siTbD3INgHY
+NA0JeK8Qrt56b6wK14w9RzLQTu9gy1pULW21p1wswdNK4tlxfnnnozISZAYxeqAx
+YMTtYZN77nb+yY4oE6XEugQ=
+-----END PRIVATE KEY-----
diff --git a/test/certs/setup.sh b/test/certs/setup.sh
index 98bac02..aa69de1 100755
--- a/test/certs/setup.sh
+++ b/test/certs/setup.sh
@@ -241,15 +241,30 @@ NC="$NC excluded;DNS:bad.ok.good.com"
NC=$NC ./mkcert.sh genca "Test NC sub CA" ncca3-key ncca3-cert \
ncca1-key ncca1-cert
-# all subjectAltNames allowed by CA1.
+# all subjectAltNames allowed by CA1. Some CNs are not!
./mkcert.sh req alt1-key "O = Good NC Test Certificate 1" \
- "1.CN=www.good.org" "2.CN=Joe Bloggs" "3.CN=any.good.com" | \
+ "1.CN=www.example.net" "2.CN=Joe Bloggs" | \
./mkcert.sh geneealt alt1-key alt1-cert ncca1-key ncca1-cert \
"DNS.1 = www.good.org" "DNS.2 = any.good.com" \
"email.1 = good at good.org" "email.2 = any at good.com" \
"IP = 127.0.0.1" "IP = 192.168.0.1"
+# all DNS-like CNs allowed by CA1, no DNS SANs.
+
+./mkcert.sh req goodcn1-key "O = Good NC Test Certificate 1" \
+ "1.CN=www.good.org" "2.CN=any.good.com" \
+ "3.CN=not..dns" "4.CN=not at dns" "5.CN=not-.dns" "6.CN=not.dns." | \
+ ./mkcert.sh geneealt goodcn1-key goodcn1-cert ncca1-key ncca1-cert \
+ "IP = 127.0.0.1" "IP = 192.168.0.1"
+
+# Some DNS-like CNs not permitted by CA1, no DNS SANs.
+
+./mkcert.sh req badcn1-key "O = Good NC Test Certificate 1" \
+ "1.CN=www.good.org" "3.CN=bad.net" | \
+ ./mkcert.sh geneealt badcn1-key badcn1-cert ncca1-key ncca1-cert \
+ "IP = 127.0.0.1" "IP = 192.168.0.1"
+
# no subjectAltNames excluded by CA2.
./mkcert.sh req alt2-key "O = Good NC Test Certificate 2" | \
@@ -293,19 +308,17 @@ NC=$NC ./mkcert.sh genca "Test NC sub CA" ncca3-key ncca3-cert \
"email.1 = good at good.org" "email.2 = any at good.com" \
"IP = 127.0.0.2"
-# all subject alt names OK but subject CN not allowed by CA1.
+# No DNS-ID SANs and subject CN not allowed by CA1.
./mkcert.sh req badalt6-key "O = Bad NC Test Certificate 6" \
"1.CN=other.good.org" "2.CN=Joe Bloggs" "3.CN=any.good.com" | \
./mkcert.sh geneealt badalt6-key badalt6-cert ncca1-key ncca1-cert \
- "DNS.1 = www.good.org" "DNS.2 = any.good.com" \
"email.1 = good at good.org" "email.2 = any at good.com" \
"IP = 127.0.0.1" "IP = 192.168.0.1"
-# all subject alt names OK but subject CN not allowed by CA1, BMPSTRING
+# No DNS-ID SANS and subject CN not allowed by CA1, BMPSTRING
REQMASK=MASK:0x800 ./mkcert.sh req badalt7-key "O = Bad NC Test Certificate 7" \
"1.CN=other.good.org" "2.CN=Joe Bloggs" "3.CN=any.good.com" | \
./mkcert.sh geneealt badalt7-key badalt7-cert ncca1-key ncca1-cert \
- "DNS.1 = www.good.org" "DNS.2 = any.good.com" \
"email.1 = good at good.org" "email.2 = any at good.com" \
"IP = 127.0.0.1" "IP = 192.168.0.1"
diff --git a/test/recipes/25-test_verify.t b/test/recipes/25-test_verify.t
index a196129..a85fe0f 100644
--- a/test/recipes/25-test_verify.t
+++ b/test/recipes/25-test_verify.t
@@ -27,7 +27,7 @@ sub verify {
run(app([@args]));
}
-plan tests => 132;
+plan tests => 134;
# Canonical success
ok(verify("ee-cert", "sslserver", ["root-cert"], ["ca-cert"]),
@@ -300,6 +300,12 @@ ok(verify("alt2-cert", "sslserver", ["root-cert"], ["ncca2-cert"], ),
ok(verify("alt3-cert", "sslserver", ["root-cert"], ["ncca1-cert", "ncca3-cert"], ),
"Name Constraints nested test all permitted");
+ok(verify("goodcn1-cert", "sslserver", ["root-cert"], ["ncca1-cert"], ),
+ "Name Constraints CNs permitted");
+
+ok(!verify("badcn1-cert", "sslserver", ["root-cert"], ["ncca1-cert"], ),
+ "Name Constraints CNs not permitted");
+
ok(!verify("badalt1-cert", "sslserver", ["root-cert"], ["ncca1-cert"], ),
"Name Constraints hostname not permitted");
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