// Tests that a critical extension not in the id-ce or id-pe arcs (which is
// thus unknown to us) is detected and that verification fails with the
// appropriate error.
TEST_F(pkix_cert_extensions, UnknownCriticalExtension)
{
static const uint8_t unknownCriticalExtensionBytes[] = {
0x30, 0x19, // SEQUENCE (length = 25)
0x06, 0x12, // OID (length = 18)
// 1.3.6.1.4.1.13769.666.666.666.1.500.9.3
0x2b, 0x06, 0x01, 0x04, 0x01, 0xeb, 0x49, 0x85, 0x1a,
0x85, 0x1a, 0x85, 0x1a, 0x01, 0x83, 0x74, 0x09, 0x03,
0x01, 0x01, 0xff, // BOOLEAN (length = 1) TRUE
0x04, 0x00 // OCTET STRING (length = 0)
};
static const SECItem unknownCriticalExtension = {
siBuffer,
const_cast<unsigned char*>(unknownCriticalExtensionBytes),
sizeof(unknownCriticalExtensionBytes)
};
const char* certCN = "CN=Cert With Unknown Critical Extension";
ScopedSECKEYPrivateKey key;
ScopedCERTCertificate cert;
ASSERT_TRUE(CreateCert(arena.get(), certCN, &unknownCriticalExtension, key,
cert));
ScopedCERTCertList results;
ASSERT_SECFailure(SEC_ERROR_UNKNOWN_CRITICAL_EXTENSION,
BuildCertChain(trustDomain, cert.get(),
now, EndEntityOrCA::MustBeEndEntity,
0, // key usage
KeyPurposeId::anyExtendedKeyUsage,
CertPolicyId::anyPolicy,
nullptr, // stapled OCSP response
results));
}
// Creates a self-signed certificate with the given extension.
static bool
CreateCert(PLArenaPool* arena, const char* subjectStr,
const SECItem* extension,
/*out*/ ScopedSECKEYPrivateKey& subjectKey,
/*out*/ ScopedCERTCertificate& subjectCert)
{
static long serialNumberValue = 0;
++serialNumberValue;
const SECItem* serialNumber(CreateEncodedSerialNumber(arena,
serialNumberValue));
if (!serialNumber) {
return false;
}
const SECItem* issuerDER(ASCIIToDERName(arena, subjectStr));
if (!issuerDER) {
return false;
}
const SECItem* subjectDER(ASCIIToDERName(arena, subjectStr));
if (!subjectDER) {
return false;
}
const SECItem* extensions[2] = { extension, nullptr };
SECItem* certDER(CreateEncodedCertificate(arena, v3, SEC_OID_SHA256,
serialNumber, issuerDER,
PR_Now() - ONE_DAY,
PR_Now() + ONE_DAY,
subjectDER, extensions,
nullptr, SEC_OID_SHA256,
subjectKey));
if (!certDER) {
return false;
}
subjectCert = CERT_NewTempCertificate(CERT_GetDefaultCertDB(), certDER,
nullptr, false, true);
return subjectCert.get() != nullptr;
}
NS_IMETHODIMP
nsNSSCertificateDB::ImportUserCertificate(uint8_t *data, uint32_t length, nsIInterfaceRequestor *ctx)
{
if (!NS_IsMainThread()) {
NS_ERROR("nsNSSCertificateDB::ImportUserCertificate called off the main thread");
return NS_ERROR_NOT_SAME_THREAD;
}
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return NS_ERROR_NOT_AVAILABLE;
}
ScopedPK11SlotInfo slot;
nsAutoCString nickname;
nsresult rv = NS_ERROR_FAILURE;
int numCACerts;
SECItem *CACerts;
CERTDERCerts * collectArgs;
PLArenaPool *arena;
ScopedCERTCertificate cert;
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (!arena) {
goto loser;
}
collectArgs = getCertsFromPackage(arena, data, length, locker);
if (!collectArgs) {
goto loser;
}
cert = CERT_NewTempCertificate(CERT_GetDefaultCertDB(), collectArgs->rawCerts,
nullptr, false, true);
if (!cert) {
goto loser;
}
slot = PK11_KeyForCertExists(cert.get(), nullptr, ctx);
if (!slot) {
nsCOMPtr<nsIX509Cert> certToShow = nsNSSCertificate::Create(cert.get());
DisplayCertificateAlert(ctx, "UserCertIgnoredNoPrivateKey", certToShow, locker);
goto loser;
}
slot = nullptr;
/* pick a nickname for the cert */
if (cert->nickname) {
/* sigh, we need a call to look up other certs with this subject and
* identify nicknames from them. We can no longer walk down internal
* database structures rjr */
nickname = cert->nickname;
}
else {
get_default_nickname(cert.get(), ctx, nickname, locker);
}
/* user wants to import the cert */
{
char *cast_const_away = const_cast<char*>(nickname.get());
slot = PK11_ImportCertForKey(cert.get(), cast_const_away, ctx);
}
if (!slot) {
goto loser;
}
slot = nullptr;
{
nsCOMPtr<nsIX509Cert> certToShow = nsNSSCertificate::Create(cert.get());
DisplayCertificateAlert(ctx, "UserCertImported", certToShow, locker);
}
rv = NS_OK;
numCACerts = collectArgs->numcerts - 1;
if (numCACerts) {
CACerts = collectArgs->rawCerts+1;
rv = ImportValidCACerts(numCACerts, CACerts, ctx, locker);
}
loser:
if (arena) {
PORT_FreeArena(arena, false);
}
return rv;
}
SECItemArray *
GetOCSPResponseForType(OCSPResponseType aORT, CERTCertificate *aCert,
PLArenaPool *aArena, const char *aAdditionalCertName)
{
if (aORT == ORTNone) {
if (gDebugLevel >= DEBUG_WARNINGS) {
fprintf(stderr, "GetOCSPResponseForType called with type ORTNone, "
"which makes no sense.\n");
}
return nullptr;
}
if (aORT == ORTEmpty) {
SECItemArray* arr = SECITEM_AllocArray(aArena, nullptr, 1);
arr->items[0].data = nullptr;
arr->items[0].len = 0;
return arr;
}
PRTime now = PR_Now();
PRTime oneDay = 60*60*24 * (PRTime)PR_USEC_PER_SEC;
PRTime oldNow = now - (8 * oneDay);
OCSPResponseContext context(aArena, aCert, now);
if (aORT == ORTGoodOtherCert) {
context.cert = PK11_FindCertFromNickname(aAdditionalCertName, nullptr);
if (!context.cert) {
PrintPRError("PK11_FindCertFromNickname failed");
return nullptr;
}
}
// XXX CERT_FindCertIssuer uses the old, deprecated path-building logic
ScopedCERTCertificate issuerCert(CERT_FindCertIssuer(aCert, now,
certUsageSSLCA));
if (!issuerCert) {
PrintPRError("CERT_FindCertIssuer failed");
return nullptr;
}
context.issuerNameDER = &issuerCert->derSubject;
context.issuerSPKI = &issuerCert->subjectPublicKeyInfo;
ScopedCERTCertificate signerCert;
if (aORT == ORTGoodOtherCA || aORT == ORTDelegatedIncluded ||
aORT == ORTDelegatedIncludedLast || aORT == ORTDelegatedMissing ||
aORT == ORTDelegatedMissingMultiple) {
signerCert = PK11_FindCertFromNickname(aAdditionalCertName, nullptr);
if (!signerCert) {
PrintPRError("PK11_FindCertFromNickname failed");
return nullptr;
}
}
const SECItem* certs[5] = { nullptr, nullptr, nullptr, nullptr, nullptr };
if (aORT == ORTDelegatedIncluded) {
certs[0] = &signerCert->derCert;
context.certs = certs;
}
if (aORT == ORTDelegatedIncludedLast || aORT == ORTDelegatedMissingMultiple) {
certs[0] = &issuerCert->derCert;
certs[1] = &context.cert->derCert;
certs[2] = &issuerCert->derCert;
if (aORT != ORTDelegatedMissingMultiple) {
certs[3] = &signerCert->derCert;
}
context.certs = certs;
}
switch (aORT) {
case ORTMalformed:
context.responseStatus = 1;
break;
case ORTSrverr:
context.responseStatus = 2;
break;
case ORTTryLater:
context.responseStatus = 3;
break;
case ORTNeedsSig:
context.responseStatus = 5;
break;
case ORTUnauthorized:
context.responseStatus = 6;
break;
default:
// context.responseStatus is 0 in all other cases, and it has
// already been initialized in the constructor.
break;
}
if (aORT == ORTSkipResponseBytes) {
context.skipResponseBytes = true;
}
if (aORT == ORTExpired || aORT == ORTExpiredFreshCA) {
context.thisUpdate = oldNow;
context.nextUpdate = oldNow + 10 * PR_USEC_PER_SEC;
}
if (aORT == ORTRevoked) {
context.certStatus = 1;
}
if (aORT == ORTUnknown) {
context.certStatus = 2;
}
if (aORT == ORTBadSignature) {
context.badSignature = true;
}
OCSPResponseExtension extension;
if (aORT == ORTCriticalExtension || aORT == ORTNoncriticalExtension) {
SECItem oidItem = {
siBuffer,
nullptr,
0
};
// 1.3.6.1.4.1.13769.666.666.666 is the root of Mozilla's testing OID space
static const char* testExtensionOID = "1.3.6.1.4.1.13769.666.666.666.1.500.9.2";
if (SEC_StringToOID(aArena, &oidItem, testExtensionOID,
PL_strlen(testExtensionOID)) != SECSuccess) {
return nullptr;
}
DERTemplate oidTemplate[2] = { { DER_OBJECT_ID, 0 }, { 0 } };
extension.id.data = nullptr;
extension.id.len = 0;
if (DER_Encode(aArena, &extension.id, oidTemplate, &oidItem)
!= SECSuccess) {
return nullptr;
}
extension.critical = (aORT == ORTCriticalExtension);
static const uint8_t value[2] = { 0x05, 0x00 };
extension.value.data = const_cast<uint8_t*>(value);
extension.value.len = PR_ARRAY_SIZE(value);
extension.next = nullptr;
context.extensions = &extension;
}
if (aORT == ORTEmptyExtensions) {
context.includeEmptyExtensions = true;
}
if (!signerCert) {
signerCert = CERT_DupCertificate(issuerCert.get());
}
context.signerPrivateKey = PK11_FindKeyByAnyCert(signerCert.get(), nullptr);
if (!context.signerPrivateKey) {
PrintPRError("PK11_FindKeyByAnyCert failed");
return nullptr;
}
SECItem* response = CreateEncodedOCSPResponse(context);
if (!response) {
PrintPRError("CreateEncodedOCSPResponse failed");
return nullptr;
}
SECItemArray* arr = SECITEM_AllocArray(aArena, nullptr, 1);
if (!arr) {
PrintPRError("SECITEM_AllocArray failed");
return nullptr;
}
arr->items[0].data = response->data;
arr->items[0].len = response->len;
return arr;
}
