diff --git a/doc/api/errors.md b/doc/api/errors.md
index d5d8e1efa7ebe8..9d176d90480cdb 100644
--- a/doc/api/errors.md
+++ b/doc/api/errors.md
@@ -1869,6 +1869,14 @@ An unspecified or non-specific system error has occurred within the Node.js
process. The error object will have an `err.info` object property with
additional details.
+
+### `ERR_TLS_CERT_ALTNAME_FORMAT`
+
+This error is thrown by `checkServerIdentity` if a user-supplied
+`subjectaltname` property violates encoding rules. Certificate objects produced
+by Node.js itself always comply with encoding rules and will never cause
+this error.
+
### `ERR_TLS_CERT_ALTNAME_INVALID`
diff --git a/lib/_tls_common.js b/lib/_tls_common.js
index b7a3b70a240479..a2a74813f18173 100644
--- a/lib/_tls_common.js
+++ b/lib/_tls_common.js
@@ -23,6 +23,7 @@
const {
ArrayIsArray,
+ JSONParse,
ObjectCreate,
} = primordials;
@@ -323,6 +324,14 @@ exports.translatePeerCertificate = function translatePeerCertificate(c) {
// XXX: More key validation?
info.replace(/([^\n:]*):([^\n]*)(?:\n|$)/g, (all, key, val) => {
+ if (val.charCodeAt(0) === 0x22) {
+ // The translatePeerCertificate function is only
+ // used on internally created legacy certificate
+ // objects, and any value that contains a quote
+ // will always be a valid JSON string literal,
+ // so this should never throw.
+ val = JSONParse(val);
+ }
if (key in c.infoAccess)
c.infoAccess[key].push(val);
else
diff --git a/lib/internal/errors.js b/lib/internal/errors.js
index 2cf7df436b5e9f..cd7153ad1a0b02 100644
--- a/lib/internal/errors.js
+++ b/lib/internal/errors.js
@@ -1345,6 +1345,8 @@ E('ERR_STREAM_WRAP', 'Stream has StringDecoder set or is in objectMode', Error);
E('ERR_STREAM_WRITE_AFTER_END', 'write after end', Error);
E('ERR_SYNTHETIC', 'JavaScript Callstack', Error);
E('ERR_SYSTEM_ERROR', 'A system error occurred', SystemError);
+E('ERR_TLS_CERT_ALTNAME_FORMAT', 'Invalid subject alternative name string',
+ SyntaxError);
E('ERR_TLS_CERT_ALTNAME_INVALID', function(reason, host, cert) {
this.reason = reason;
this.host = host;
diff --git a/lib/tls.js b/lib/tls.js
index 2ccbe409c96c2d..cefb47d10f329f 100644
--- a/lib/tls.js
+++ b/lib/tls.js
@@ -24,11 +24,19 @@
const {
Array,
ArrayIsArray,
+ ArrayPrototypePush,
+ JSONParse,
ObjectDefineProperty,
ObjectFreeze,
+ RegExpPrototypeExec,
+ StringPrototypeIncludes,
+ StringPrototypeIndexOf,
+ StringPrototypeSplit,
+ StringPrototypeSubstring,
} = primordials;
const {
+ ERR_TLS_CERT_ALTNAME_FORMAT,
ERR_TLS_CERT_ALTNAME_INVALID,
ERR_OUT_OF_RANGE
} = require('internal/errors').codes;
@@ -207,6 +215,45 @@ function check(hostParts, pattern, wildcards) {
return true;
}
+// This pattern is used to determine the length of escaped sequences within
+// the subject alt names string. It allows any valid JSON string literal.
+// This MUST match the JSON specification (ECMA-404 / RFC8259) exactly.
+const jsonStringPattern =
+ // eslint-disable-next-line no-control-regex
+ /^"(?:[^"\\\u0000-\u001f]|\\(?:["\\/bfnrt]|u[0-9a-fA-F]{4}))*"/;
+
+function splitEscapedAltNames(altNames) {
+ const result = [];
+ let currentToken = '';
+ let offset = 0;
+ while (offset !== altNames.length) {
+ const nextSep = StringPrototypeIndexOf(altNames, ', ', offset);
+ const nextQuote = StringPrototypeIndexOf(altNames, '"', offset);
+ if (nextQuote !== -1 && (nextSep === -1 || nextQuote < nextSep)) {
+ // There is a quote character and there is no separator before the quote.
+ currentToken += StringPrototypeSubstring(altNames, offset, nextQuote);
+ const match = RegExpPrototypeExec(
+ jsonStringPattern, StringPrototypeSubstring(altNames, nextQuote));
+ if (!match) {
+ throw new ERR_TLS_CERT_ALTNAME_FORMAT();
+ }
+ currentToken += JSONParse(match[0]);
+ offset = nextQuote + match[0].length;
+ } else if (nextSep !== -1) {
+ // There is a separator and no quote before it.
+ currentToken += StringPrototypeSubstring(altNames, offset, nextSep);
+ ArrayPrototypePush(result, currentToken);
+ currentToken = '';
+ offset = nextSep + 2;
+ } else {
+ currentToken += StringPrototypeSubstring(altNames, offset);
+ offset = altNames.length;
+ }
+ }
+ ArrayPrototypePush(result, currentToken);
+ return result;
+}
+
let urlWarningEmitted = false;
exports.checkServerIdentity = function checkServerIdentity(hostname, cert) {
const subject = cert.subject;
@@ -218,7 +265,10 @@ exports.checkServerIdentity = function checkServerIdentity(hostname, cert) {
hostname = '' + hostname;
if (altNames) {
- for (const name of altNames.split(', ')) {
+ const splitAltNames = StringPrototypeIncludes(altNames, '"') ?
+ splitEscapedAltNames(altNames) :
+ StringPrototypeSplit(altNames, ', ');
+ for (const name of splitAltNames) {
if (name.startsWith('DNS:')) {
dnsNames.push(name.slice(4));
} else if (name.startsWith('URI:')) {
diff --git a/src/node_crypto_common.cc b/src/node_crypto_common.cc
index 74bc0a9756246b..53fbc576efcdf1 100644
--- a/src/node_crypto_common.cc
+++ b/src/node_crypto_common.cc
@@ -480,39 +480,320 @@ void AddFingerprintDigest(
}
}
-bool SafeX509ExtPrint(const BIOPointer& out, X509_EXTENSION* ext) {
- const X509V3_EXT_METHOD* method = X509V3_EXT_get(ext);
+static inline bool IsSafeAltName(const char* name, size_t length, bool utf8) {
+ for (size_t i = 0; i < length; i++) {
+ char c = name[i];
+ switch (c) {
+ case '"':
+ case '\\':
+ // These mess with encoding rules.
+ // Fall through.
+ case ',':
+ // Commas make it impossible to split the list of subject alternative
+ // names unambiguously, which is why we have to escape.
+ // Fall through.
+ case '\'':
+ // Single quotes are unlikely to appear in any legitimate values, but they
+ // could be used to make a value look like it was escaped (i.e., enclosed
+ // in single/double quotes).
+ return false;
+ default:
+ if (utf8) {
+ // In UTF8 strings, we require escaping for any ASCII control character,
+ // but NOT for non-ASCII characters. Note that all bytes of any code
+ // point that consists of more than a single byte have their MSB set.
+ if (static_cast(c) < ' ' || c == '\x7f') {
+ return false;
+ }
+ } else {
+ // Check if the char is a control character or non-ASCII character. Note
+ // that char may or may not be a signed type. Regardless, non-ASCII
+ // values will always be outside of this range.
+ if (c < ' ' || c > '~') {
+ return false;
+ }
+ }
+ }
+ }
+ return true;
+}
- if (method != X509V3_EXT_get_nid(NID_subject_alt_name))
- return false;
+static inline void PrintAltName(const BIOPointer& out, const char* name,
+ size_t length, bool utf8,
+ const char* safe_prefix) {
+ if (IsSafeAltName(name, length, utf8)) {
+ // For backward-compatibility, append "safe" names without any
+ // modifications.
+ if (safe_prefix != nullptr) {
+ BIO_printf(out.get(), "%s:", safe_prefix);
+ }
+ BIO_write(out.get(), name, length);
+ } else {
+ // If a name is not "safe", we cannot embed it without special
+ // encoding. This does not usually happen, but we don't want to hide
+ // it from the user either. We use JSON compatible escaping here.
+ BIO_write(out.get(), "\"", 1);
+ if (safe_prefix != nullptr) {
+ BIO_printf(out.get(), "%s:", safe_prefix);
+ }
+ for (size_t j = 0; j < length; j++) {
+ char c = static_cast(name[j]);
+ if (c == '\\') {
+ BIO_write(out.get(), "\\\\", 2);
+ } else if (c == '"') {
+ BIO_write(out.get(), "\\\"", 2);
+ } else if ((c >= ' ' && c != ',' && c <= '~') || (utf8 && (c & 0x80))) {
+ // Note that the above condition explicitly excludes commas, which means
+ // that those are encoded as Unicode escape sequences in the "else"
+ // block. That is not strictly necessary, and Node.js itself would parse
+ // it correctly either way. We only do this to account for third-party
+ // code that might be splitting the string at commas (as Node.js itself
+ // used to do).
+ BIO_write(out.get(), &c, 1);
+ } else {
+ // Control character or non-ASCII character. We treat everything as
+ // Latin-1, which corresponds to the first 255 Unicode code points.
+ const char hex[] = "0123456789abcdef";
+ char u[] = { '\\', 'u', '0', '0', hex[(c & 0xf0) >> 4], hex[c & 0x0f] };
+ BIO_write(out.get(), u, sizeof(u));
+ }
+ }
+ BIO_write(out.get(), "\"", 1);
+ }
+}
+
+static inline void PrintLatin1AltName(const BIOPointer& out,
+ const ASN1_IA5STRING* name,
+ const char* safe_prefix = nullptr) {
+ PrintAltName(out, reinterpret_cast(name->data), name->length,
+ false, safe_prefix);
+}
+
+static inline void PrintUtf8AltName(const BIOPointer& out,
+ const ASN1_UTF8STRING* name,
+ const char* safe_prefix = nullptr) {
+ PrintAltName(out, reinterpret_cast(name->data), name->length,
+ true, safe_prefix);
+}
+
+// This function currently emulates the behavior of i2v_GENERAL_NAME in a safer
+// and less ambiguous way.
+// TODO(tniessen): gradually improve the format in the next major version(s)
+static bool PrintGeneralName(const BIOPointer& out, const GENERAL_NAME* gen) {
+ if (gen->type == GEN_DNS) {
+ ASN1_IA5STRING* name = gen->d.dNSName;
+ BIO_write(out.get(), "DNS:", 4);
+ // Note that the preferred name syntax (see RFCs 5280 and 1034) with
+ // wildcards is a subset of what we consider "safe", so spec-compliant DNS
+ // names will never need to be escaped.
+ PrintLatin1AltName(out, name);
+ } else if (gen->type == GEN_EMAIL) {
+ ASN1_IA5STRING* name = gen->d.rfc822Name;
+ BIO_write(out.get(), "email:", 6);
+ PrintLatin1AltName(out, name);
+ } else if (gen->type == GEN_URI) {
+ ASN1_IA5STRING* name = gen->d.uniformResourceIdentifier;
+ BIO_write(out.get(), "URI:", 4);
+ // The set of "safe" names was designed to include just about any URI,
+ // with a few exceptions, most notably URIs that contains commas (see
+ // RFC 2396). In other words, most legitimate URIs will not require
+ // escaping.
+ PrintLatin1AltName(out, name);
+ } else if (gen->type == GEN_DIRNAME) {
+ // For backward compatibility, use X509_NAME_oneline to print the
+ // X509_NAME object. The format is non standard and should be avoided
+ // elsewhere, but conveniently, the function produces ASCII and the output
+ // is unlikely to contains commas or other characters that would require
+ // escaping. With that in mind, note that it SHOULD NOT produce ASCII
+ // output since an RFC5280 AttributeValue may be a UTF8String.
+ // TODO(tniessen): switch to RFC2253 rules in a major release
+ BIO_printf(out.get(), "DirName:");
+ char oline[256];
+ if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) != nullptr) {
+ PrintAltName(out, oline, strlen(oline), false, nullptr);
+ } else {
+ return false;
+ }
+ } else if (gen->type == GEN_IPADD) {
+ BIO_printf(out.get(), "IP Address:");
+ const ASN1_OCTET_STRING* ip = gen->d.ip;
+ const unsigned char* b = ip->data;
+ if (ip->length == 4) {
+ BIO_printf(out.get(), "%d.%d.%d.%d", b[0], b[1], b[2], b[3]);
+ } else if (ip->length == 16) {
+ for (unsigned int j = 0; j < 8; j++) {
+ uint16_t pair = (b[2 * j] << 8) | b[2 * j + 1];
+ BIO_printf(out.get(), (j == 0) ? "%X" : ":%X", pair);
+ }
+ } else {
+#if OPENSSL_VERSION_MAJOR >= 3
+ BIO_printf(out.get(), "", ip->length);
+#else
+ BIO_printf(out.get(), "");
+#endif
+ }
+ } else if (gen->type == GEN_RID) {
+ // TODO(tniessen): unlike OpenSSL's default implementation, never print the
+ // OID as text and instead always print its numeric representation, which is
+ // backward compatible in practice and more future proof (see OBJ_obj2txt).
+ char oline[256];
+ i2t_ASN1_OBJECT(oline, sizeof(oline), gen->d.rid);
+ BIO_printf(out.get(), "Registered ID:%s", oline);
+ } else if (gen->type == GEN_OTHERNAME) {
+ // TODO(tniessen): the format that is used here is based on OpenSSL's
+ // implementation of i2v_GENERAL_NAME (as of OpenSSL 3.0.1), mostly for
+ // backward compatibility. It is somewhat awkward, especially when passed to
+ // translatePeerCertificate, and should be changed in the future, probably
+ // to the format used by GENERAL_NAME_print (in a major release).
+ bool unicode = true;
+ const char* prefix = nullptr;
+ // OpenSSL 1.1.1 does not support othername in i2v_GENERAL_NAME and may not
+ // define these NIDs.
+#if OPENSSL_VERSION_MAJOR >= 3
+ int nid = OBJ_obj2nid(gen->d.otherName->type_id);
+ switch (nid) {
+ case NID_id_on_SmtpUTF8Mailbox:
+ prefix = " SmtpUTF8Mailbox:";
+ break;
+ case NID_XmppAddr:
+ prefix = " XmppAddr:";
+ break;
+ case NID_SRVName:
+ prefix = " SRVName:";
+ unicode = false;
+ break;
+ case NID_ms_upn:
+ prefix = " UPN:";
+ break;
+ case NID_NAIRealm:
+ prefix = " NAIRealm:";
+ break;
+ }
+#endif // OPENSSL_VERSION_MAJOR >= 3
+ int val_type = gen->d.otherName->value->type;
+ if (prefix == nullptr ||
+ (unicode && val_type != V_ASN1_UTF8STRING) ||
+ (!unicode && val_type != V_ASN1_IA5STRING)) {
+ BIO_printf(out.get(), "othername:");
+ } else {
+ BIO_printf(out.get(), "othername:");
+ if (unicode) {
+ PrintUtf8AltName(out, gen->d.otherName->value->value.utf8string,
+ prefix);
+ } else {
+ PrintLatin1AltName(out, gen->d.otherName->value->value.ia5string,
+ prefix);
+ }
+ }
+ } else if (gen->type == GEN_X400) {
+ // TODO(tniessen): this is what OpenSSL does, implement properly instead
+ BIO_printf(out.get(), "X400Name:");
+ } else if (gen->type == GEN_EDIPARTY) {
+ // TODO(tniessen): this is what OpenSSL does, implement properly instead
+ BIO_printf(out.get(), "EdiPartyName:");
+ } else {
+ // This is safe because X509V3_EXT_d2i would have returned nullptr in this
+ // case already.
+ UNREACHABLE();
+ }
+
+ return true;
+}
+
+bool SafeX509SubjectAltNamePrint(const BIOPointer& out, X509_EXTENSION* ext) {
+ const X509V3_EXT_METHOD* method = X509V3_EXT_get(ext);
+ CHECK(method == X509V3_EXT_get_nid(NID_subject_alt_name));
GENERAL_NAMES* names = static_cast(X509V3_EXT_d2i(ext));
if (names == nullptr)
return false;
+ bool ok = true;
+
for (int i = 0; i < sk_GENERAL_NAME_num(names); i++) {
GENERAL_NAME* gen = sk_GENERAL_NAME_value(names, i);
if (i != 0)
BIO_write(out.get(), ", ", 2);
- if (gen->type == GEN_DNS) {
- ASN1_IA5STRING* name = gen->d.dNSName;
-
- BIO_write(out.get(), "DNS:", 4);
- BIO_write(out.get(), name->data, name->length);
- } else {
- STACK_OF(CONF_VALUE)* nval = i2v_GENERAL_NAME(
- const_cast(method), gen, nullptr);
- if (nval == nullptr)
- return false;
- X509V3_EXT_val_prn(out.get(), nval, 0, 0);
- sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
+ if (!(ok = PrintGeneralName(out, gen))) {
+ break;
}
}
sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
- return true;
+ return ok;
+}
+
+bool SafeX509InfoAccessPrint(const BIOPointer& out, X509_EXTENSION* ext) {
+ const X509V3_EXT_METHOD* method = X509V3_EXT_get(ext);
+ CHECK(method == X509V3_EXT_get_nid(NID_info_access));
+
+ AUTHORITY_INFO_ACCESS* descs =
+ static_cast(X509V3_EXT_d2i(ext));
+ if (descs == nullptr)
+ return false;
+
+ bool ok = true;
+
+ for (int i = 0; i < sk_ACCESS_DESCRIPTION_num(descs); i++) {
+ ACCESS_DESCRIPTION* desc = sk_ACCESS_DESCRIPTION_value(descs, i);
+
+ if (i != 0)
+ BIO_write(out.get(), "\n", 1);
+
+ char objtmp[80];
+ i2t_ASN1_OBJECT(objtmp, sizeof(objtmp), desc->method);
+ BIO_printf(out.get(), "%s - ", objtmp);
+ if (!(ok = PrintGeneralName(out, desc->location))) {
+ break;
+ }
+ }
+ sk_ACCESS_DESCRIPTION_pop_free(descs, ACCESS_DESCRIPTION_free);
+
+#if OPENSSL_VERSION_MAJOR < 3
+ BIO_write(out.get(), "\n", 1);
+#endif
+
+ return ok;
+}
+
+v8::MaybeLocal GetSubjectAltNameString(
+ Environment* env,
+ const BIOPointer& bio,
+ X509* cert) {
+ int index = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
+ if (index < 0)
+ return Undefined(env->isolate());
+
+ X509_EXTENSION* ext = X509_get_ext(cert, index);
+ CHECK_NOT_NULL(ext);
+
+ if (!SafeX509SubjectAltNamePrint(bio, ext)) {
+ USE(BIO_reset(bio.get()));
+ return v8::Null(env->isolate());
+ }
+
+ return ToV8Value(env, bio);
+}
+
+v8::MaybeLocal GetInfoAccessString(
+ Environment* env,
+ const BIOPointer& bio,
+ X509* cert) {
+ int index = X509_get_ext_by_NID(cert, NID_info_access, -1);
+ if (index < 0)
+ return Undefined(env->isolate());
+
+ X509_EXTENSION* ext = X509_get_ext(cert, index);
+ CHECK_NOT_NULL(ext);
+
+ if (!SafeX509InfoAccessPrint(bio, ext)) {
+ USE(BIO_reset(bio.get()));
+ return v8::Null(env->isolate());
+ }
+
+ return ToV8Value(env, bio);
}
MaybeLocal GetFingerprintDigest(
@@ -628,27 +909,6 @@ MaybeLocal GetModulusString(
return ToV8Value(env, bio);
}
-template
-MaybeLocal GetInfoString(
- Environment* env,
- const BIOPointer& bio,
- X509* cert) {
- int index = X509_get_ext_by_NID(cert, nid, -1);
- if (index < 0)
- return Undefined(env->isolate());
-
- X509_EXTENSION* ext = X509_get_ext(cert, index);
- CHECK_NOT_NULL(ext);
-
- if (!SafeX509ExtPrint(bio, ext) &&
- X509V3_EXT_print(bio.get(), ext, 0, 0) != 1) {
- USE(BIO_reset(bio.get()));
- return Null(env->isolate());
- }
-
- return ToV8Value(env, bio);
-}
-
MaybeLocal GetIssuerString(
Environment* env,
const BIOPointer& bio,
@@ -917,11 +1177,11 @@ MaybeLocal X509ToObject(Environment* env, X509* cert) {
!Set(context,
info,
env->subjectaltname_string(),
- GetInfoString(env, bio, cert)) ||
+ GetSubjectAltNameString(env, bio, cert)) ||
!Set(context,
info,
env->infoaccess_string(),
- GetInfoString(env, bio, cert))) {
+ GetInfoAccessString(env, bio, cert))) {
return MaybeLocal();
}
diff --git a/test/common/index.js b/test/common/index.js
index 8cd984152702d5..98b586cafd41f5 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -51,6 +51,11 @@ const noop = () => {};
const hasCrypto = Boolean(process.versions.openssl) &&
!process.env.NODE_SKIP_CRYPTO;
+const hasOpenSSL3 = hasCrypto &&
+ require('crypto').constants.OPENSSL_VERSION_NUMBER >= 805306368;
+
+const hasQuic = hasCrypto && !!process.config.variables.openssl_quic;
+
// Check for flags. Skip this for workers (both, the `cluster` module and
// `worker_threads`) and child processes.
// If the binary was built without-ssl then the crypto flags are
@@ -714,6 +719,8 @@ const common = {
getTTYfd,
hasIntl,
hasCrypto,
+ hasOpenSSL3,
+ hasQuic,
hasMultiLocalhost,
invalidArgTypeHelper,
isAIX,
diff --git a/test/fixtures/keys/Makefile b/test/fixtures/keys/Makefile
index 824704c7241b0a..49cc29ad1c4b43 100644
--- a/test/fixtures/keys/Makefile
+++ b/test/fixtures/keys/Makefile
@@ -75,6 +75,8 @@ all: \
ed448_public.pem \
x448_private.pem \
x448_public.pem \
+ incorrect_san_correct_subject-cert.pem \
+ incorrect_san_correct_subject-key.pem \
#
# Create Certificate Authority: ca1
@@ -733,6 +735,18 @@ x448_private.pem:
x448_public.pem: x448_private.pem
openssl pkey -in x448_private.pem -pubout -out x448_public.pem
+incorrect_san_correct_subject-cert.pem: incorrect_san_correct_subject-key.pem
+ openssl req -x509 \
+ -key incorrect_san_correct_subject-key.pem \
+ -out incorrect_san_correct_subject-cert.pem \
+ -sha256 \
+ -days 3650 \
+ -subj "/CN=good.example.com" \
+ -addext "subjectAltName = DNS:evil.example.com"
+
+incorrect_san_correct_subject-key.pem:
+ openssl ecparam -name prime256v1 -genkey -noout -out incorrect_san_correct_subject-key.pem
+
clean:
rm -f *.pfx *.pem *.srl ca2-database.txt ca2-serial fake-startcom-root-serial *.print *.old fake-startcom-root-issued-certs/*.pem
@> fake-startcom-root-database.txt
diff --git a/test/fixtures/keys/incorrect_san_correct_subject-cert.pem b/test/fixtures/keys/incorrect_san_correct_subject-cert.pem
new file mode 100644
index 00000000000000..787d9f113511d6
--- /dev/null
+++ b/test/fixtures/keys/incorrect_san_correct_subject-cert.pem
@@ -0,0 +1,11 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/keys/incorrect_san_correct_subject-key.pem b/test/fixtures/keys/incorrect_san_correct_subject-key.pem
new file mode 100644
index 00000000000000..f7f51253a8f7ed
--- /dev/null
+++ b/test/fixtures/keys/incorrect_san_correct_subject-key.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
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+-----END EC PRIVATE KEY-----
diff --git a/test/fixtures/x509-escaping/.gitignore b/test/fixtures/x509-escaping/.gitignore
new file mode 100644
index 00000000000000..504afef81fbadc
--- /dev/null
+++ b/test/fixtures/x509-escaping/.gitignore
@@ -0,0 +1,2 @@
+node_modules/
+package-lock.json
diff --git a/test/fixtures/x509-escaping/alt-0-cert.pem b/test/fixtures/x509-escaping/alt-0-cert.pem
new file mode 100644
index 00000000000000..30e6fa6c3fa83a
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-0-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-1-cert.pem b/test/fixtures/x509-escaping/alt-1-cert.pem
new file mode 100644
index 00000000000000..63883c2bbf7f91
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-1-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-10-cert.pem b/test/fixtures/x509-escaping/alt-10-cert.pem
new file mode 100644
index 00000000000000..14bec45d284e26
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-10-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-11-cert.pem b/test/fixtures/x509-escaping/alt-11-cert.pem
new file mode 100644
index 00000000000000..694cb7e9d8d879
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-11-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-12-cert.pem b/test/fixtures/x509-escaping/alt-12-cert.pem
new file mode 100644
index 00000000000000..7e48ebdf052c94
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-12-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-13-cert.pem b/test/fixtures/x509-escaping/alt-13-cert.pem
new file mode 100644
index 00000000000000..574ad1ca8f3cf9
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-13-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-14-cert.pem b/test/fixtures/x509-escaping/alt-14-cert.pem
new file mode 100644
index 00000000000000..0265b5992c1dbc
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-14-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-15-cert.pem b/test/fixtures/x509-escaping/alt-15-cert.pem
new file mode 100644
index 00000000000000..70a98fb90bb96f
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-15-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-16-cert.pem b/test/fixtures/x509-escaping/alt-16-cert.pem
new file mode 100644
index 00000000000000..64f852ceebb476
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-16-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-17-cert.pem b/test/fixtures/x509-escaping/alt-17-cert.pem
new file mode 100644
index 00000000000000..f09f41b91841d5
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-17-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-18-cert.pem b/test/fixtures/x509-escaping/alt-18-cert.pem
new file mode 100644
index 00000000000000..341ac0b7cec24d
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-18-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-19-cert.pem b/test/fixtures/x509-escaping/alt-19-cert.pem
new file mode 100644
index 00000000000000..f16318420442e2
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-19-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-2-cert.pem b/test/fixtures/x509-escaping/alt-2-cert.pem
new file mode 100644
index 00000000000000..6ae58f56360276
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-2-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-20-cert.pem b/test/fixtures/x509-escaping/alt-20-cert.pem
new file mode 100644
index 00000000000000..eca176f2df0c28
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-20-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-21-cert.pem b/test/fixtures/x509-escaping/alt-21-cert.pem
new file mode 100644
index 00000000000000..16d5e7265bc3f5
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-21-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-22-cert.pem b/test/fixtures/x509-escaping/alt-22-cert.pem
new file mode 100644
index 00000000000000..5f89b00dfdce1f
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-22-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-23-cert.pem b/test/fixtures/x509-escaping/alt-23-cert.pem
new file mode 100644
index 00000000000000..5cd6795cded659
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-23-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-24-cert.pem b/test/fixtures/x509-escaping/alt-24-cert.pem
new file mode 100644
index 00000000000000..2a858dd39a2db9
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-24-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-25-cert.pem b/test/fixtures/x509-escaping/alt-25-cert.pem
new file mode 100644
index 00000000000000..695b8ebba88ceb
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-25-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-26-cert.pem b/test/fixtures/x509-escaping/alt-26-cert.pem
new file mode 100644
index 00000000000000..1204d95a8a5793
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-26-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-27-cert.pem b/test/fixtures/x509-escaping/alt-27-cert.pem
new file mode 100644
index 00000000000000..268abdd300914f
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-27-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-28-cert.pem b/test/fixtures/x509-escaping/alt-28-cert.pem
new file mode 100644
index 00000000000000..147fba3aff2fae
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-28-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-29-cert.pem b/test/fixtures/x509-escaping/alt-29-cert.pem
new file mode 100644
index 00000000000000..434bda3e8e7988
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-29-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-3-cert.pem b/test/fixtures/x509-escaping/alt-3-cert.pem
new file mode 100644
index 00000000000000..59185b64a4dc5d
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-3-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-30-cert.pem b/test/fixtures/x509-escaping/alt-30-cert.pem
new file mode 100644
index 00000000000000..1b67d1f7823ad1
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-30-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-4-cert.pem b/test/fixtures/x509-escaping/alt-4-cert.pem
new file mode 100644
index 00000000000000..086af8e02e2c19
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-4-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-5-cert.pem b/test/fixtures/x509-escaping/alt-5-cert.pem
new file mode 100644
index 00000000000000..04a918008c67b8
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-5-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/test/fixtures/x509-escaping/alt-6-cert.pem b/test/fixtures/x509-escaping/alt-6-cert.pem
new file mode 100644
index 00000000000000..664351995793fb
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-6-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-7-cert.pem b/test/fixtures/x509-escaping/alt-7-cert.pem
new file mode 100644
index 00000000000000..6c0f287a1be1f7
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-7-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
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+FK6yA1q3Z2500lmloQWcUFBX48DViG3bsTJ9wmQ28aPqHVd5gTmTm/7W2iRGx36N
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+jSUtNHUCJaC3E9yTaIDc8jMli9s5/ElDZRkPxRP8o4VOt9KcLvU=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-8-cert.pem b/test/fixtures/x509-escaping/alt-8-cert.pem
new file mode 100644
index 00000000000000..201b520f8bf976
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-8-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
+MIIExDCCAqygAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
+LmV4YW1wbGUuY29tMB4XDTIxMTIyMDE0NTczNVoXDTMxMTIxODE0NTczNVowGzEZ
+MBcGA1UEAxMQZXZpbC5leGFtcGxlLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIP
+ADCCAgoCggIBALERZ3TS70T1P+SjpZwIqOFnu2Od9XKWcDszQQc7C92K+APjp4Bv
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+ZnYcXkgAatWwp4Cbsv4H7LMNisKjrcY+r+MpaYYIpTRNp/s/P5bMCIVt07yosePg
+m9VWy03+hQJmD4/THeJsjuczPSBtsoJiKoTJ5TndmpFaG6J6lBVvpXJhoiW/QIgX
+u2QIb8Z6bRK/eQ8UVYm0/ZQLN+OOzYiQfm0AFbFpYhl46o6QNZ03P6GRLshv+N3E
+CX66ucPLd4QJitUy39LZjMlC0YxTZUry
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/alt-9-cert.pem b/test/fixtures/x509-escaping/alt-9-cert.pem
new file mode 100644
index 00000000000000..660e65b8ed7ebd
--- /dev/null
+++ b/test/fixtures/x509-escaping/alt-9-cert.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
+MIIExDCCAqygAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
+LmV4YW1wbGUuY29tMB4XDTIxMTIyMDE0NTczNVoXDTMxMTIxODE0NTczNVowGzEZ
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+KVIPlr+/0zIhzDjNbN0TMgqv/Yz4/wCUjsmCPJu21C3+BP2O5ZD2e4hYe/X9kuhC
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+/7wXhGudHCwm6j2H5/tbsREeYInl3mv4
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/create-certs.js b/test/fixtures/x509-escaping/create-certs.js
new file mode 100644
index 00000000000000..b84547e1d0aef9
--- /dev/null
+++ b/test/fixtures/x509-escaping/create-certs.js
@@ -0,0 +1,502 @@
+'use strict';
+
+const asn1 = require('asn1.js');
+const crypto = require('crypto');
+const { writeFileSync } = require('fs');
+const rfc5280 = require('asn1.js-rfc5280');
+const BN = asn1.bignum;
+
+const oid = {
+ commonName: [2, 5, 4, 3],
+ countryName: [2, 5, 4, 6],
+ localityName: [2, 5, 4, 7],
+ rsaEncryption: [1, 2, 840, 113549, 1, 1, 1],
+ sha256WithRSAEncryption: [1, 2, 840, 113549, 1, 1, 11],
+ xmppAddr: [1, 3, 6, 1, 5, 5, 7, 8, 5],
+ srvName: [1, 3, 6, 1, 5, 5, 7, 8, 7],
+ ocsp: [1, 3, 6, 1, 5, 5, 7, 48, 1],
+ caIssuers: [1, 3, 6, 1, 5, 5, 7, 48, 2],
+ privateUnrecognized: [1, 3, 9999, 12, 34]
+};
+
+const digest = 'SHA256';
+
+const { privateKey, publicKey } = crypto.generateKeyPairSync('rsa', {
+ modulusLength: 4096,
+ publicKeyEncoding: {
+ type: 'pkcs1',
+ format: 'der'
+ }
+});
+
+writeFileSync('server-key.pem', privateKey.export({
+ type: 'pkcs8',
+ format: 'pem'
+}));
+
+const now = Date.now();
+const days = 3650;
+
+function utilType(name, fn) {
+ return asn1.define(name, function() {
+ this[fn]();
+ });
+}
+
+const Null_ = utilType('Null_', 'null_');
+const null_ = Null_.encode('der');
+
+const IA5String = utilType('IA5String', 'ia5str');
+const PrintableString = utilType('PrintableString', 'printstr');
+const UTF8String = utilType('UTF8String', 'utf8str');
+
+const subjectCommonName = PrintableString.encode('evil.example.com', 'der');
+
+const sans = [
+ { type: 'dNSName', value: 'good.example.com, DNS:evil.example.com' },
+ { type: 'uniformResourceIdentifier', value: 'http://example.com/' },
+ { type: 'uniformResourceIdentifier', value: 'http://example.com/?a=b&c=d' },
+ { type: 'uniformResourceIdentifier', value: 'http://example.com/a,b' },
+ { type: 'uniformResourceIdentifier', value: 'http://example.com/a%2Cb' },
+ {
+ type: 'uniformResourceIdentifier',
+ value: 'http://example.com/a, DNS:good.example.com'
+ },
+ { type: 'dNSName', value: Buffer.from('exämple.com', 'latin1') },
+ { type: 'dNSName', value: '"evil.example.com"' },
+ { type: 'iPAddress', value: Buffer.from('08080808', 'hex') },
+ { type: 'iPAddress', value: Buffer.from('08080404', 'hex') },
+ { type: 'iPAddress', value: Buffer.from('0008080404', 'hex') },
+ { type: 'iPAddress', value: Buffer.from('000102030405', 'hex') },
+ {
+ type: 'iPAddress',
+ value: Buffer.from('0a0b0c0d0e0f0000000000007a7b7c7d', 'hex')
+ },
+ { type: 'rfc822Name', value: 'foo@example.com' },
+ { type: 'rfc822Name', value: 'foo@example.com, DNS:good.example.com' },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('Hannover', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('München', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('Berlin, DNS:good.example.com', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('Berlin, DNS:good.example.com\0evil.example.com', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode(
+ 'Berlin, DNS:good.example.com\\\0evil.example.com', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('Berlin\r\n', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'directoryName',
+ value: {
+ type: 'rdnSequence',
+ value: [
+ [
+ {
+ type: oid.countryName,
+ value: PrintableString.encode('DE', 'der')
+ }
+ ],
+ [
+ {
+ type: oid.localityName,
+ value: UTF8String.encode('Berlin/CN=good.example.com', 'der')
+ }
+ ]
+ ]
+ }
+ },
+ {
+ type: 'registeredID',
+ value: oid.sha256WithRSAEncryption
+ },
+ {
+ type: 'registeredID',
+ value: oid.privateUnrecognized
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.xmppAddr,
+ value: UTF8String.encode('abc123', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.xmppAddr,
+ value: UTF8String.encode('abc123, DNS:good.example.com', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.xmppAddr,
+ value: UTF8String.encode('good.example.com\0abc123', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.privateUnrecognized,
+ value: UTF8String.encode('abc123', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.srvName,
+ value: IA5String.encode('abc123', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.srvName,
+ value: UTF8String.encode('abc123', 'der')
+ }
+ },
+ {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.srvName,
+ value: IA5String.encode('abc\0def', 'der')
+ }
+ }
+];
+
+for (let i = 0; i < sans.length; i++) {
+ const san = sans[i];
+
+ const tbs = {
+ version: 'v3',
+ serialNumber: new BN('01', 16),
+ signature: {
+ algorithm: oid.sha256WithRSAEncryption,
+ parameters: null_
+ },
+ issuer: {
+ type: 'rdnSequence',
+ value: [
+ [
+ { type: oid.commonName, value: subjectCommonName }
+ ]
+ ]
+ },
+ validity: {
+ notBefore: { type: 'utcTime', value: now },
+ notAfter: { type: 'utcTime', value: now + days * 86400000 }
+ },
+ subject: {
+ type: 'rdnSequence',
+ value: [
+ [
+ { type: oid.commonName, value: subjectCommonName }
+ ]
+ ]
+ },
+ subjectPublicKeyInfo: {
+ algorithm: {
+ algorithm: oid.rsaEncryption,
+ parameters: null_
+ },
+ subjectPublicKey: {
+ unused: 0,
+ data: publicKey
+ }
+ },
+ extensions: [
+ {
+ extnID: 'subjectAlternativeName',
+ critical: false,
+ extnValue: [san]
+ }
+ ]
+ };
+
+ // Self-sign the certificate.
+ const tbsDer = rfc5280.TBSCertificate.encode(tbs, 'der');
+ const signature = crypto.createSign(digest).update(tbsDer).sign(privateKey);
+
+ // Construct the signed certificate.
+ const cert = {
+ tbsCertificate: tbs,
+ signatureAlgorithm: {
+ algorithm: oid.sha256WithRSAEncryption,
+ parameters: null_
+ },
+ signature: {
+ unused: 0,
+ data: signature
+ }
+ };
+
+ // Store the signed certificate.
+ const pem = rfc5280.Certificate.encode(cert, 'pem', {
+ label: 'CERTIFICATE'
+ });
+ writeFileSync(`./alt-${i}-cert.pem`, `${pem}\n`);
+}
+
+const infoAccessExtensions = [
+ [
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'uniformResourceIdentifier',
+ value: 'http://good.example.com/\nOCSP - URI:http://evil.example.com/',
+ },
+ },
+ ],
+ [
+ {
+ accessMethod: oid.caIssuers,
+ accessLocation: {
+ type: 'uniformResourceIdentifier',
+ value: 'http://ca.example.com/\nOCSP - URI:http://evil.example.com',
+ },
+ },
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'dNSName',
+ value: 'good.example.com\nOCSP - URI:http://ca.nodejs.org/ca.cert',
+ },
+ },
+ ],
+ [
+ {
+ accessMethod: oid.privateUnrecognized,
+ accessLocation: {
+ type: 'uniformResourceIdentifier',
+ value: 'http://ca.example.com/',
+ },
+ },
+ ],
+ [
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.xmppAddr,
+ value: UTF8String.encode('good.example.com', 'der'),
+ },
+ },
+ },
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.privateUnrecognized,
+ value: UTF8String.encode('abc123', 'der')
+ },
+ },
+ },
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.srvName,
+ value: IA5String.encode('abc123', 'der')
+ }
+ }
+ },
+ ],
+ [
+ {
+ accessMethod: oid.ocsp,
+ accessLocation: {
+ type: 'otherName',
+ value: {
+ 'type-id': oid.xmppAddr,
+ value: UTF8String.encode('good.example.com\0abc123', 'der'),
+ },
+ },
+ },
+ ],
+];
+
+for (let i = 0; i < infoAccessExtensions.length; i++) {
+ const infoAccess = infoAccessExtensions[i];
+
+ const tbs = {
+ version: 'v3',
+ serialNumber: new BN('01', 16),
+ signature: {
+ algorithm: oid.sha256WithRSAEncryption,
+ parameters: null_
+ },
+ issuer: {
+ type: 'rdnSequence',
+ value: [
+ [
+ { type: oid.commonName, value: subjectCommonName }
+ ]
+ ]
+ },
+ validity: {
+ notBefore: { type: 'utcTime', value: now },
+ notAfter: { type: 'utcTime', value: now + days * 86400000 }
+ },
+ subject: {
+ type: 'rdnSequence',
+ value: [
+ [
+ { type: oid.commonName, value: subjectCommonName }
+ ]
+ ]
+ },
+ subjectPublicKeyInfo: {
+ algorithm: {
+ algorithm: oid.rsaEncryption,
+ parameters: null_
+ },
+ subjectPublicKey: {
+ unused: 0,
+ data: publicKey
+ }
+ },
+ extensions: [
+ {
+ extnID: 'authorityInformationAccess',
+ critical: false,
+ extnValue: infoAccess
+ }
+ ]
+ };
+
+ // Self-sign the certificate.
+ const tbsDer = rfc5280.TBSCertificate.encode(tbs, 'der');
+ const signature = crypto.createSign(digest).update(tbsDer).sign(privateKey);
+
+ // Construct the signed certificate.
+ const cert = {
+ tbsCertificate: tbs,
+ signatureAlgorithm: {
+ algorithm: oid.sha256WithRSAEncryption,
+ parameters: null_
+ },
+ signature: {
+ unused: 0,
+ data: signature
+ }
+ };
+
+ // Store the signed certificate.
+ const pem = rfc5280.Certificate.encode(cert, 'pem', {
+ label: 'CERTIFICATE'
+ });
+ writeFileSync(`./info-${i}-cert.pem`, `${pem}\n`);
+}
diff --git a/test/fixtures/x509-escaping/google/intermediate.pem b/test/fixtures/x509-escaping/google/intermediate.pem
new file mode 100644
index 00000000000000..9d2aeb32c4e5e5
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/intermediate.pem
@@ -0,0 +1,11 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/key.pem b/test/fixtures/x509-escaping/google/key.pem
new file mode 100644
index 00000000000000..102a9d8816cd63
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/key.pem
@@ -0,0 +1,5 @@
+-----BEGIN PRIVATE KEY-----
+MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgaNbpDxJET5xVHxd/
+ig5x2u2KUIe0jaCVWqarpIN/582hRANCAAR7DaOQvpvA47q2XxjMqxJVf/FvZm2f
+tiFRXNJMe/fhSlDh2CybdkFIw2mE5g4ShW5UBJe+sohqy5V9WRkYtM/B
+-----END PRIVATE KEY-----
diff --git a/test/fixtures/x509-escaping/google/leaf0.pem b/test/fixtures/x509-escaping/google/leaf0.pem
new file mode 100644
index 00000000000000..ce19dc96994ac0
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/leaf0.pem
@@ -0,0 +1,10 @@
+-----BEGIN CERTIFICATE-----
+MIIBajCCARCgAwIBAgIBAzAKBggqhkjOPQQDAjAXMRUwEwYDVQQDEwxJbnRlcm1l
+ZGlhdGUwIBcNMDAwMTAxMDAwMDAwWhgPMjA5OTAxMDEwMDAwMDBaMA8xDTALBgNV
+BAMTBExlYWYwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAR7DaOQvpvA47q2XxjM
+qxJVf/FvZm2ftiFRXNJMe/fhSlDh2CybdkFIw2mE5g4ShW5UBJe+sohqy5V9WRkY
+tM/Bo1MwUTAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFCUZxhtiiFordL5cZ6oJ
+OLgssd4tMCAGA1UdEQQZMBeCFWJsYWguYXR0YWNrZXIuZXhhbXBsZTAKBggqhkjO
+PQQDAgNIADBFAiEA4NgHDxVrBjNW+So4MrRZMwDknvjRaBsB4j2IwVRKl4sCIDpg
+Bhm4ZdHwlUYrALkXa3dFBy8kXBkVumY7UJpbB2mO
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/leaf1.pem b/test/fixtures/x509-escaping/google/leaf1.pem
new file mode 100644
index 00000000000000..0b45056656cab1
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/leaf1.pem
@@ -0,0 +1,10 @@
+-----BEGIN CERTIFICATE-----
+MIIBdTCCARygAwIBAgIBBDAKBggqhkjOPQQDAjAXMRUwEwYDVQQDEwxJbnRlcm1l
+ZGlhdGUwIBcNMDAwMTAxMDAwMDAwWhgPMjA5OTAxMDEwMDAwMDBaMA8xDTALBgNV
+BAMTBExlYWYwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAR7DaOQvpvA47q2XxjM
+qxJVf/FvZm2ftiFRXNJMe/fhSlDh2CybdkFIw2mE5g4ShW5UBJe+sohqy5V9WRkY
+tM/Bo18wXTAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFCUZxhtiiFordL5cZ6oJ
+OLgssd4tMCwGA1UdEQQlMCOCCm5vZGVqcy5vcmeCFWJsYWguYXR0YWNrZXIuZXhh
+bXBsZTAKBggqhkjOPQQDAgNHADBEAiAOFFOCfA6c/iZWxbDn5QMjNdtZbtJPBcRv
+uEgSqWrGTAIgK5RK0xGK8UZb2aM2VjGNTYozlcwKaLgQukA+UnKrrJg=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/leaf2.pem b/test/fixtures/x509-escaping/google/leaf2.pem
new file mode 100644
index 00000000000000..9cf03fae7d2ae6
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/leaf2.pem
@@ -0,0 +1,10 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/leaf3.pem b/test/fixtures/x509-escaping/google/leaf3.pem
new file mode 100644
index 00000000000000..55a64fdc898929
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/leaf3.pem
@@ -0,0 +1,10 @@
+-----BEGIN CERTIFICATE-----
+MIIBZzCCAQ2gAwIBAgIBBjAKBggqhkjOPQQDAjAXMRUwEwYDVQQDEwxJbnRlcm1l
+ZGlhdGUwIBcNMDAwMTAxMDAwMDAwWhgPMjA5OTAxMDEwMDAwMDBaMA8xDTALBgNV
+BAMTBExlYWYwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAR7DaOQvpvA47q2XxjM
+qxJVf/FvZm2ftiFRXNJMe/fhSlDh2CybdkFIw2mE5g4ShW5UBJe+sohqy5V9WRkY
+tM/Bo1AwTjAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFCUZxhtiiFordL5cZ6oJ
+OLgssd4tMB0GA1UdEQQWMBSGEmh0dHBzOi8vbm9kZWpzLm9yZzAKBggqhkjOPQQD
+AgNIADBFAiEArZgaxFBuPYFWCXeFTkXhV57MKxG/tIJ2Z3Wzts2Im7QCICoukuRf
+EsQN7g6h30fRuLOIdbfCCduc7YVpkkSlwe99
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/leaf4.pem b/test/fixtures/x509-escaping/google/leaf4.pem
new file mode 100644
index 00000000000000..668a659f45b540
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/leaf4.pem
@@ -0,0 +1,10 @@
+-----BEGIN CERTIFICATE-----
+MIIBdTCCARugAwIBAgIBBzAKBggqhkjOPQQDAjAXMRUwEwYDVQQDEwxJbnRlcm1l
+ZGlhdGUwIBcNMDAwMTAxMDAwMDAwWhgPMjA5OTAxMDEwMDAwMDBaMDwxHzAdBgNV
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+f/FvZm2ftiFRXNJMe/fhSlDh2CybdkFIw2mE5g4ShW5UBJe+sohqy5V9WRkYtM/B
+ozEwLzAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFCUZxhtiiFordL5cZ6oJOLgs
+sd4tMAoGCCqGSM49BAMCA0gAMEUCIQCpchwik2NT0v8ifDT8aMqOLv5YwqB7oeOu
+LincYQYMagIgZc2U7DBrdEAWNfuAJx4I+ZkluIcswcdnOhbriOrTSHg=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/google/root.pem b/test/fixtures/x509-escaping/google/root.pem
new file mode 100644
index 00000000000000..68eb00ae862fbb
--- /dev/null
+++ b/test/fixtures/x509-escaping/google/root.pem
@@ -0,0 +1,9 @@
+-----BEGIN CERTIFICATE-----
+MIIBQTCB56ADAgECAgEBMAoGCCqGSM49BAMCMA8xDTALBgNVBAMTBFJvb3QwIBcN
+MDAwMTAxMDAwMDAwWhgPMjA5OTAxMDEwMDAwMDBaMA8xDTALBgNVBAMTBFJvb3Qw
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+GFoCIQD1DpNg6m5ZaogRW1mY1wmR5HFIr3gG8PYDRimQogXUxg==
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/info-0-cert.pem b/test/fixtures/x509-escaping/info-0-cert.pem
new file mode 100644
index 00000000000000..6872b9870a6cab
--- /dev/null
+++ b/test/fixtures/x509-escaping/info-0-cert.pem
@@ -0,0 +1,30 @@
+-----BEGIN CERTIFICATE-----
+MIIFDTCCAvWgAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
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+xLdnq2GTtdghwdkF9DYK0ZekDlk1XWbP0tR5Cevo6WlMx+cbEBG+OSfNd8/dFrkd
+aw==
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/info-1-cert.pem b/test/fixtures/x509-escaping/info-1-cert.pem
new file mode 100644
index 00000000000000..05247873d85981
--- /dev/null
+++ b/test/fixtures/x509-escaping/info-1-cert.pem
@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
+MIIFVTCCAz2gAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
+LmV4YW1wbGUuY29tMB4XDTIxMTIyMDE0NTczNVoXDTMxMTIxODE0NTczNVowGzEZ
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+6egKc6L755SlqZRMT03txH2UCBizLz1gjA==
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/info-2-cert.pem b/test/fixtures/x509-escaping/info-2-cert.pem
new file mode 100644
index 00000000000000..06212d4e12a5da
--- /dev/null
+++ b/test/fixtures/x509-escaping/info-2-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
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+O+jFfYToPtE=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/info-3-cert.pem b/test/fixtures/x509-escaping/info-3-cert.pem
new file mode 100644
index 00000000000000..1825949bd38193
--- /dev/null
+++ b/test/fixtures/x509-escaping/info-3-cert.pem
@@ -0,0 +1,30 @@
+-----BEGIN CERTIFICATE-----
+MIIFMDCCAxigAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
+LmV4YW1wbGUuY29tMB4XDTIxMTIyMDE0NTczNVoXDTMxMTIxODE0NTczNVowGzEZ
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+jFemE8otKfog84vNGbPFl/AHwxjKCeCA/MaNJz3y3RYVsZn6
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/info-4-cert.pem b/test/fixtures/x509-escaping/info-4-cert.pem
new file mode 100644
index 00000000000000..8f1e69afec7510
--- /dev/null
+++ b/test/fixtures/x509-escaping/info-4-cert.pem
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIE9jCCAt6gAwIBAgIBATANBgkqhkiG9w0BAQsFADAbMRkwFwYDVQQDExBldmls
+LmV4YW1wbGUuY29tMB4XDTIxMTIyMDE0NTczNVoXDTMxMTIxODE0NTczNVowGzEZ
+MBcGA1UEAxMQZXZpbC5leGFtcGxlLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIP
+ADCCAgoCggIBALERZ3TS70T1P+SjpZwIqOFnu2Od9XKWcDszQQc7C92K+APjp4Bv
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+dvCwwV4OwLwPliPAvwYfVEI41Dv3mF4fN7k=
+-----END CERTIFICATE-----
diff --git a/test/fixtures/x509-escaping/package.json b/test/fixtures/x509-escaping/package.json
new file mode 100644
index 00000000000000..37d9f2a9385c46
--- /dev/null
+++ b/test/fixtures/x509-escaping/package.json
@@ -0,0 +1,12 @@
+{
+ "name": "x509-escaping",
+ "version": "1.0.0",
+ "description": "create certificates for x509-escaping test",
+ "main": "createCert.js",
+ "license": "SEE LICENSE IN ../../../LICENSE",
+ "private": true,
+ "dependencies": {
+ "asn1.js": "^5.4.1",
+ "asn1.js-rfc5280": "^3.0.0"
+ }
+}
diff --git a/test/fixtures/x509-escaping/server-key.pem b/test/fixtures/x509-escaping/server-key.pem
new file mode 100644
index 00000000000000..db1d2652d0b76d
--- /dev/null
+++ b/test/fixtures/x509-escaping/server-key.pem
@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQCxEWd00u9E9T/k
+o6WcCKjhZ7tjnfVylnA7M0EHOwvdivgD46eAb1omsonLagiVrZrG7EpYuMhtz+g3
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+rzDDHjLJWwxyAWzdGdkhtMGPd6B9i4TtF/PU3J3nbpLn5XfEBFu4jJ+w+5Wvk5a6
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++6K2vcclZN7aga1S7wTsrX+k9C/OQuj8ONMWQHCxryp5RAmgtArTBrJZq8el1lcG
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+aGHeICXvgvpalUL+2dGwASlOvPa52ekcOPd2+qKWyss0zA4ksI7mNE2vjFUcOr+S
+n9QSNvu3E8dYAjzSIsizcQbPTlk6A/TmytNJ4x67ZVGCmKXw1ZzzSrxSbAIdY254
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+jLYljIkIbt+nB1c8HeNvARmBa6M2pxB9f72oRMVqFdUUc5AxXuWP9v6xk227EuCq
+TBORAafu9WxKVwUsHa1rE1uGgNEfRJ8=
+-----END PRIVATE KEY-----
diff --git a/test/parallel/test-tls-0-dns-altname.js b/test/parallel/test-tls-0-dns-altname.js
index 4bc87e44cb60c1..e5cb8e3d487af1 100644
--- a/test/parallel/test-tls-0-dns-altname.js
+++ b/test/parallel/test-tls-0-dns-altname.js
@@ -44,7 +44,7 @@ const server = tls.createServer({
}, common.mustCall(() => {
const cert = c.getPeerCertificate();
assert.strictEqual(cert.subjectaltname,
- 'DNS:good.example.org\0.evil.example.com, ' +
+ 'DNS:"good.example.org\\u0000.evil.example.com", ' +
'DNS:just-another.example.com, ' +
'IP Address:8.8.8.8, ' +
'IP Address:8.8.4.4, ' +
diff --git a/test/parallel/test-x509-escaping.js b/test/parallel/test-x509-escaping.js
new file mode 100644
index 00000000000000..4e0f82767d022e
--- /dev/null
+++ b/test/parallel/test-x509-escaping.js
@@ -0,0 +1,349 @@
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto)
+ common.skip('missing crypto');
+
+const assert = require('assert');
+const tls = require('tls');
+const fixtures = require('../common/fixtures');
+
+const { hasOpenSSL3 } = common;
+
+// Test that all certificate chains provided by the reporter are rejected.
+{
+ const rootPEM = fixtures.readSync('x509-escaping/google/root.pem');
+ const intermPEM = fixtures.readSync('x509-escaping/google/intermediate.pem');
+ const keyPEM = fixtures.readSync('x509-escaping/google/key.pem');
+
+ const numLeaves = 5;
+
+ for (let i = 0; i < numLeaves; i++) {
+ // TODO(tniessen): this test case requires proper handling of URI SANs,
+ // which node currently does not implement.
+ if (i === 3) continue;
+
+ const name = `x509-escaping/google/leaf${i}.pem`;
+ const leafPEM = fixtures.readSync(name, 'utf8');
+
+ const server = tls.createServer({
+ key: keyPEM,
+ cert: leafPEM + intermPEM,
+ }, common.mustNotCall()).listen(common.mustCall(() => {
+ const { port } = server.address();
+ const socket = tls.connect(port, {
+ ca: rootPEM,
+ servername: 'nodejs.org',
+ }, common.mustNotCall());
+ socket.on('error', common.mustCall());
+ })).unref();
+ }
+}
+
+// Test escaping rules for subject alternative names.
+{
+ const expectedSANs = [
+ 'DNS:"good.example.com\\u002c DNS:evil.example.com"',
+ // URIs should not require escaping.
+ 'URI:http://example.com/',
+ 'URI:http://example.com/?a=b&c=d',
+ // Unless they contain commas.
+ 'URI:"http://example.com/a\\u002cb"',
+ // Percent encoding should not require escaping.
+ 'URI:http://example.com/a%2Cb',
+ // Malicious attempts should be escaped.
+ 'URI:"http://example.com/a\\u002c DNS:good.example.com"',
+ // Non-ASCII characters in DNS names should be treated as Latin-1.
+ 'DNS:"ex\\u00e4mple.com"',
+ // It should not be possible to cause unescaping without escaping.
+ 'DNS:"\\"evil.example.com\\""',
+ // IPv4 addresses should be represented as usual.
+ 'IP Address:8.8.8.8',
+ 'IP Address:8.8.4.4',
+ // For backward-compatibility, include invalid IP address lengths.
+ hasOpenSSL3 ? 'IP Address:' : 'IP Address:',
+ hasOpenSSL3 ? 'IP Address:' : 'IP Address:',
+ // IPv6 addresses are represented as OpenSSL does.
+ 'IP Address:A0B:C0D:E0F:0:0:0:7A7B:7C7D',
+ // Regular email addresses don't require escaping.
+ 'email:foo@example.com',
+ // ... but should be escaped if they contain commas.
+ 'email:"foo@example.com\\u002c DNS:good.example.com"',
+ 'DirName:/C=DE/L=Hannover',
+ // TODO(tniessen): support UTF8 in DirName
+ 'DirName:"/C=DE/L=M\\\\xC3\\\\xBCnchen"',
+ 'DirName:"/C=DE/L=Berlin\\u002c DNS:good.example.com"',
+ 'DirName:"/C=DE/L=Berlin\\u002c DNS:good.example.com\\\\x00' +
+ 'evil.example.com"',
+ 'DirName:"/C=DE/L=Berlin\\u002c DNS:good.example.com\\\\\\\\x00' +
+ 'evil.example.com"',
+ // These next two tests might be surprising. OpenSSL applies its own rules
+ // first, which introduce backslashes, which activate node's escaping.
+ // Unfortunately, there are also differences between OpenSSL 1.1.1 and 3.0.
+ 'DirName:"/C=DE/L=Berlin\\\\x0D\\\\x0A"',
+ hasOpenSSL3 ?
+ 'DirName:"/C=DE/L=Berlin\\\\/CN=good.example.com"' :
+ 'DirName:/C=DE/L=Berlin/CN=good.example.com',
+ // TODO(tniessen): even OIDs that are well-known (such as the following,
+ // which is sha256WithRSAEncryption) should be represented numerically only.
+ 'Registered ID:sha256WithRSAEncryption',
+ // This is an OID that will likely never be assigned to anything, thus
+ // OpenSSL should not know it.
+ 'Registered ID:1.3.9999.12.34',
+ hasOpenSSL3 ?
+ 'othername: XmppAddr::abc123' :
+ 'othername:',
+ hasOpenSSL3 ?
+ 'othername:" XmppAddr::abc123\\u002c DNS:good.example.com"' :
+ 'othername:',
+ hasOpenSSL3 ?
+ 'othername:" XmppAddr::good.example.com\\u0000abc123"' :
+ 'othername:',
+ // This is unsupported because the OID is not recognized.
+ 'othername:',
+ hasOpenSSL3 ? 'othername: SRVName::abc123' : 'othername:',
+ // This is unsupported because it is an SRVName with a UTF8String value,
+ // which is not allowed for SRVName.
+ 'othername:',
+ hasOpenSSL3 ?
+ 'othername:" SRVName::abc\\u0000def"' :
+ 'othername:',
+ ];
+
+ const serverKey = fixtures.readSync('x509-escaping/server-key.pem', 'utf8');
+
+ for (let i = 0; i < expectedSANs.length; i++) {
+ const pem = fixtures.readSync(`x509-escaping/alt-${i}-cert.pem`, 'utf8');
+
+ // X509Certificate interface is not supported in v12.x & v14.x. Disable
+ // checks for subjectAltName with expectedSANs. The testcase is ported
+ // from v17.x
+ //
+ // Test the subjectAltName property of the X509Certificate API.
+ // const cert = new X509Certificate(pem);
+ // assert.strictEqual(cert.subjectAltName, expectedSANs[i]);
+
+ // Test that the certificate obtained by checkServerIdentity has the correct
+ // subjectaltname property.
+ const server = tls.createServer({
+ key: serverKey,
+ cert: pem,
+ }, common.mustCall((conn) => {
+ conn.destroy();
+ server.close();
+ })).listen(common.mustCall(() => {
+ const { port } = server.address();
+ tls.connect(port, {
+ ca: pem,
+ servername: 'example.com',
+ checkServerIdentity: (hostname, peerCert) => {
+ assert.strictEqual(hostname, 'example.com');
+ assert.strictEqual(peerCert.subjectaltname, expectedSANs[i]);
+ },
+ }, common.mustCall());
+ }));
+ }
+}
+
+// Test escaping rules for authority info access.
+{
+ const expectedInfoAccess = [
+ {
+ text: 'OCSP - URI:"http://good.example.com/\\u000a' +
+ 'OCSP - URI:http://evil.example.com/"',
+ legacy: {
+ 'OCSP - URI': [
+ 'http://good.example.com/\nOCSP - URI:http://evil.example.com/',
+ ],
+ },
+ },
+ {
+ text: 'CA Issuers - URI:"http://ca.example.com/\\u000a' +
+ 'OCSP - URI:http://evil.example.com"\n' +
+ 'OCSP - DNS:"good.example.com\\u000a' +
+ 'OCSP - URI:http://ca.nodejs.org/ca.cert"',
+ legacy: {
+ 'CA Issuers - URI': [
+ 'http://ca.example.com/\nOCSP - URI:http://evil.example.com',
+ ],
+ 'OCSP - DNS': [
+ 'good.example.com\nOCSP - URI:http://ca.nodejs.org/ca.cert',
+ ],
+ },
+ },
+ {
+ text: '1.3.9999.12.34 - URI:http://ca.example.com/',
+ legacy: {
+ '1.3.9999.12.34 - URI': [
+ 'http://ca.example.com/',
+ ],
+ },
+ },
+ hasOpenSSL3 ? {
+ text: 'OCSP - othername: XmppAddr::good.example.com\n' +
+ 'OCSP - othername:\n' +
+ 'OCSP - othername: SRVName::abc123',
+ legacy: {
+ 'OCSP - othername': [
+ ' XmppAddr::good.example.com',
+ '',
+ ' SRVName::abc123',
+ ],
+ },
+ } : {
+ text: 'OCSP - othername:\n' +
+ 'OCSP - othername:\n' +
+ 'OCSP - othername:',
+ legacy: {
+ 'OCSP - othername': [
+ '',
+ '',
+ '',
+ ],
+ },
+ },
+ hasOpenSSL3 ? {
+ text: 'OCSP - othername:" XmppAddr::good.example.com\\u0000abc123"',
+ legacy: {
+ 'OCSP - othername': [
+ ' XmppAddr::good.example.com\0abc123',
+ ],
+ },
+ } : {
+ text: 'OCSP - othername:',
+ legacy: {
+ 'OCSP - othername': [
+ '',
+ ],
+ },
+ },
+ ];
+
+ const serverKey = fixtures.readSync('x509-escaping/server-key.pem', 'utf8');
+
+ for (let i = 0; i < expectedInfoAccess.length; i++) {
+ const pem = fixtures.readSync(`x509-escaping/info-${i}-cert.pem`, 'utf8');
+ const expected = expectedInfoAccess[i];
+
+ // X509Certificate interface is not supported in v12.x & v14.x. Disable
+ // checks for cert.infoAccess with expected text. The testcase is ported
+ // from v17.x
+ // Test the subjectAltName property of the X509Certificate API.
+ // const cert = new X509Certificate(pem);
+ // assert.strictEqual(cert.infoAccess,
+ // `${expected.text}${hasOpenSSL3 ? '' : '\n'}`);
+
+ // Test that the certificate obtained by checkServerIdentity has the correct
+ // subjectaltname property.
+ const server = tls.createServer({
+ key: serverKey,
+ cert: pem,
+ }, common.mustCall((conn) => {
+ conn.destroy();
+ server.close();
+ })).listen(common.mustCall(() => {
+ const { port } = server.address();
+ tls.connect(port, {
+ ca: pem,
+ servername: 'example.com',
+ checkServerIdentity: (hostname, peerCert) => {
+ assert.strictEqual(hostname, 'example.com');
+ assert.deepStrictEqual(peerCert.infoAccess,
+ Object.assign(Object.create(null),
+ expected.legacy));
+ },
+ }, common.mustCall());
+ }));
+ }
+}
+
+// The internal parsing logic must match the JSON specification exactly.
+{
+ // This list is partially based on V8's own JSON tests.
+ const invalidJSON = [
+ '"\\a invalid escape"',
+ '"\\v invalid escape"',
+ '"\\\' invalid escape"',
+ '"\\x42 invalid escape"',
+ '"\\u202 invalid escape"',
+ '"\\012 invalid escape"',
+ '"Unterminated string',
+ '"Unterminated string\\"',
+ '"Unterminated string\\\\\\"',
+ '"\u0000 control character"',
+ '"\u001e control character"',
+ '"\u001f control character"',
+ ];
+
+ for (const invalidStringLiteral of invalidJSON) {
+ // Usually, checkServerIdentity returns an error upon verification failure.
+ // In this case, however, it should throw an error since this is not a
+ // verification error. Node.js itself will never produce invalid JSON string
+ // literals, so this can only happen when users construct invalid subject
+ // alternative name strings (that do not follow escaping rules).
+ assert.throws(() => {
+ tls.checkServerIdentity('example.com', {
+ subjectaltname: `DNS:${invalidStringLiteral}`,
+ });
+ }, {
+ code: 'ERR_TLS_CERT_ALTNAME_FORMAT',
+ message: 'Invalid subject alternative name string'
+ });
+ }
+}
+
+// While node does not produce commas within SAN entries, it should parse them
+// correctly (i.e., not simply split at commas).
+{
+ // Regardless of the quotes, splitting this SAN string at commas would
+ // cause checkServerIdentity to see 'DNS:b.example.com' and thus to accept
+ // the certificate for b.example.com.
+ const san = 'DNS:"a.example.com, DNS:b.example.com, DNS:c.example.com"';
+
+ // This is what node used to do, and which is not correct!
+ const hostname = 'b.example.com';
+ assert.strictEqual(san.split(', ')[1], `DNS:${hostname}`);
+
+ // The new implementation should parse the string correctly.
+ const err = tls.checkServerIdentity(hostname, { subjectaltname: san });
+ assert(err);
+ assert.strictEqual(err.code, 'ERR_TLS_CERT_ALTNAME_INVALID');
+ assert.strictEqual(err.message, 'Hostname/IP does not match certificate\'s ' +
+ 'altnames: Host: b.example.com. is not in ' +
+ 'the cert\'s altnames: DNS:"a.example.com, ' +
+ 'DNS:b.example.com, DNS:c.example.com"');
+}
+
+// The subject MUST be ignored if a dNSName subject alternative name exists.
+{
+ const key = fixtures.readKey('incorrect_san_correct_subject-key.pem');
+ const cert = fixtures.readKey('incorrect_san_correct_subject-cert.pem');
+
+ // The hostname is the CN, but not a SAN entry.
+ const servername = 'good.example.com';
+
+ // X509Certificate interface is not supported in v12.x & v14.x. Disable
+ // checks for certX509.subject and certX509.subjectAltName with expected
+ // value. The testcase is ported from v17.x
+ //
+ // const certX509 = new X509Certificate(cert);
+ // assert.strictEqual(certX509.subject, `CN=${servername}`);
+ // assert.strictEqual(certX509.subjectAltName, 'DNS:evil.example.com');
+
+ // Try connecting to a server that uses the self-signed certificate.
+ const server = tls.createServer({ key, cert }, common.mustNotCall());
+ server.listen(common.mustCall(() => {
+ const { port } = server.address();
+ const socket = tls.connect(port, {
+ ca: cert,
+ servername,
+ }, common.mustNotCall());
+ socket.on('error', common.mustCall((err) => {
+ assert.strictEqual(err.code, 'ERR_TLS_CERT_ALTNAME_INVALID');
+ assert.strictEqual(err.message, 'Hostname/IP does not match ' +
+ "certificate's altnames: Host: " +
+ "good.example.com. is not in the cert's" +
+ ' altnames: DNS:evil.example.com');
+ }));
+ })).unref();
+}