open-vault/vault/diagnose/tls_verification_test.go
Hridoy Roy a8cc5e4557
TLS Verification Bugfixes (#11910)
* tls verification bugfix

* tls verification bugfix

* allow diagnose fail to report status when there are also warnings

* allow diagnose fail to report status when there are also warnings

* Update vault/diagnose/helpers_test.go

Co-authored-by: swayne275 <swayne275@gmail.com>

* comments

Co-authored-by: swayne275 <swayne275@gmail.com>
2021-06-24 10:43:49 -07:00

534 lines
20 KiB
Go

package diagnose
import (
"context"
"fmt"
"strings"
"testing"
"github.com/hashicorp/vault/internalshared/configutil"
)
// TestTLSValidCert is the positive test case to show that specifying a valid cert and key
// passes all checks.
func TestTLSValidCert(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/goodcertwithroot.pem",
TLSKeyFile: "./test-fixtures/goodkey.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
warnings, errs := ListenerChecks(context.Background(), listeners)
if errs != nil {
// The test failed -- we can just return one of the errors
t.Fatalf(errs[0].Error())
}
if warnings != nil {
t.Fatalf("warnings returned from good listener")
}
}
// TestTLSFakeCert simply ensures that the certificate file must contain PEM data.
func TestTLSFakeCert(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/fakecert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if len(errs) != 1 {
t.Fatalf("more than one error returned: %+v", errs)
}
if !strings.Contains(errs[0].Error(), "could not decode cert") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSTrailingData uses a certificate from:
// https://github.com/golang/go/issues/40545 that contains
// an extra DER sequence, and makes sure a trailing data error
// is returned.
func TestTLSTrailingData(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/trailingdatacert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "asn1: syntax error: trailing data") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSExpiredCert checks that an expired certificate fails TLS checks
// with an appropriate error.
func TestTLSExpiredCert(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/expiredcert.pem",
TLSKeyFile: "./test-fixtures/expiredprivatekey.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
warnings, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "certificate has expired or is not yet valid") {
t.Fatalf("Bad error message: %s", errs[0])
}
if warnings == nil || len(warnings) != 1 {
t.Fatalf("TLS Config check on fake certificate should warn")
}
if !strings.Contains(warnings[0], "expired or near expiry") {
t.Fatalf("Bad warning: %s", warnings[0])
}
}
// TestTLSMismatchedCryptographicInfo verifies that a cert and key of differing cryptographic
// types, when specified together, is met with a unique error message.
func TestTLSMismatchedCryptographicInfo(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./test-fixtures/ecdsa.key",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "tls: private key type does not match public key type") {
t.Fatalf("Bad error message: %s", errs[0])
}
listeners = []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/ecdsa.crt",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs = ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "tls: private key type does not match public key type") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSMultiKeys verifies that a unique error message is thrown when a key is specified twice.
func TestTLSMultiKeys(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/key.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "pem block does not parse to a certificate") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSCertAsKey verifies that a unique error message is thrown when a cert is specified twice.
func TestTLSCertAsKey(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/cert.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "found a certificate rather than a key in the PEM for the private key") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSInvalidRoot makes sure that the Verify call in tls.go checks the authority of
// the root. The root certificate used in this test is the Baltimore Cyber Trust root
// certificate, downloaded from: https://www.digicert.com/kb/digicert-root-certificates.htm
func TestTLSInvalidRoot(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./test-fixtures/goodcertbadroot.pem",
TLSKeyFile: "./test-fixtures/goodkey.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on fake certificate should fail")
}
if !strings.Contains(errs[0].Error(), "certificate signed by unknown authority") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSNoRoot ensures that a server certificate that is passed in without a root
// is still accepted by diagnose as valid. This is an acceptable, though less secure,
// server configuration.
func TestTLSNoRoot(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./test-fixtures/goodkey.pem",
TLSMinVersion: "tls10",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs != nil {
t.Fatalf("server certificate without root certificate is insecure, but still valid")
}
}
// TestTLSInvalidMinVersion checks that a listener with an invalid minimum configured
// version errors appropriately.
func TestTLSInvalidMinVersion(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMinVersion: "0",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on invalid 'tls_min_version' should fail")
}
if !strings.Contains(errs[0].Error(), fmt.Errorf(minVersionError, "0").Error()) {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSInvalidMaxVersion checks that a listener with an invalid maximum configured
// version errors appropriately.
func TestTLSInvalidMaxVersion(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "0",
TLSDisableClientCerts: true,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on invalid 'tls_max_version' should fail")
}
if !strings.Contains(errs[0].Error(), fmt.Errorf(maxVersionError, "0").Error()) {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestDisabledClientCertsAndDisabledTLSClientCAVerfiy checks that a listener works properly when both
// TLSRequireAndVerifyClientCert and TLSDisableClientCerts are false
func TestDisabledClientCertsAndDisabledTLSClientCAVerfiy(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: false,
TLSDisableClientCerts: false,
},
}
status, _ := TLSMutualExclusionCertCheck(listeners[0])
if status != 0 {
t.Fatalf("TLS config failed when both TLSRequireAndVerifyClientCert and TLSDisableClientCerts are false")
}
}
// TestTLSClientCAVerfiy checks that a listener which has TLS client certs checks enabled works as expected
func TestTLSClientCAVerfiy(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
status, err := TLSMutualExclusionCertCheck(listeners[0])
if status != 0 {
t.Fatalf("TLS config check failed with %s", err)
}
}
// TestTLSClientCAVerfiySkip checks that TLS client cert checks are skipped if TLSDisableClientCerts is true
// regardless of the value for TLSRequireAndVerifyClientCert
func TestTLSClientCAVerfiySkip(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: false,
TLSDisableClientCerts: true,
},
}
status, err := TLSMutualExclusionCertCheck(listeners[0])
if status != 0 {
t.Fatalf("TLS config check did not skip verification and failed with %s", err)
}
}
// TestTLSClientCAVerfiyMutualExclusion checks that TLS client cert checks are skipped if TLSDisableClientCerts is true
// regardless of the value for TLSRequireAndVerifyClientCert
func TestTLSClientCAVerfiyMutualExclusion(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: true,
},
}
status, err := TLSMutualExclusionCertCheck(listeners[0])
if status == 0 {
t.Fatalf("TLS config check should have failed when both 'tls_disable_client_certs' and 'tls_require_and_verify_client_cert' are true")
}
if !strings.Contains(err, "the tls_disable_client_certs and tls_require_and_verify_client_cert fields in the "+
"listener stanza of the vault server config are mutually exclusive fields") {
t.Fatalf("Bad error message: %s", err)
}
}
// TestTLSClientCAVerfiy checks that a listener which has TLS client certs checks enabled works as expected
func TestTLSClientCAFileCheck(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./../../api/test-fixtures/root/rootcacert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
warnings, errs := ListenerChecks(context.Background(), listeners)
if errs != nil {
t.Fatalf("TLS config check failed while a good ClientCAFile was used")
}
if warnings != nil {
t.Fatalf("TLS config check return warning while a good ClientCAFile was used")
}
}
// TestTLSLeafCertInClientCAFile checks if a leafCert exist in TLSClientCAFile
func TestTLSLeafCertInClientCAFile(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./test-fixtures/goodcertbadroot.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on bad ClientCAFile certificate should fail")
}
if !strings.Contains(errs[0].Error(), "Found at least one leafCert in a root CA cert.") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSNoRootInClientCAFile checks if no Root cert exist in TLSClientCAFile
func TestTLSNoRootInClientCAFile(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./test-fixtures/intermediateCert.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil {
t.Fatalf("TLS Config check on bad ClientCAFile certificate should fail")
}
if !strings.Contains(errs[0].Error(), "No root cert found!") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSIntermediateCertInClientCAFile checks if an intermediate cert is included in TLSClientCAFile
func TestTLSIntermediateCertInClientCAFile(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./test-fixtures/chain.crt.pem",
TLSMaxVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil || len(errs) != 1 {
t.Fatalf("TLS Config check on bad ClientCAFile certificate should fail")
}
if !strings.Contains(errs[0].Error(), "Found at least one intermediate cert in a root CA cert.") {
t.Fatalf("Bad error message: %s", errs[0])
}
}
// TestTLSMultipleRootInClietCACert checks if multiple roots included in TLSClientCAFile
func TestTLSMultipleRootInClietCACert(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "./test-fixtures/twoRootCA.pem",
TLSMinVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
warnings, errs := ListenerChecks(context.Background(), listeners)
if errs != nil {
t.Fatalf("TLS Config check on valid certificate should not fail")
}
if warnings == nil {
t.Fatalf("TLS Config check on valid but bad certificate should warn")
}
if !strings.Contains(warnings[0], "Found Multiple rootCerts instead of just one!") {
t.Fatalf("Bad warning: %s", warnings[0])
}
}
// TestTLSSelfSignedCerts tests invalid self-signed cert as TLSClientCAFile
func TestTLSSelfSignedCert(t *testing.T) {
listeners := []*configutil.Listener{
{
Type: "tcp",
Address: "127.0.0.1:443",
ClusterAddress: "127.0.0.1:8201",
TLSCertFile: "./../../api/test-fixtures/keys/cert.pem",
TLSKeyFile: "./../../api/test-fixtures/keys/key.pem",
TLSClientCAFile: "test-fixtures/selfSignedCert.pem",
TLSMinVersion: "tls10",
TLSRequireAndVerifyClientCert: true,
TLSDisableClientCerts: false,
},
}
_, errs := ListenerChecks(context.Background(), listeners)
if errs == nil {
t.Fatalf("Self-signed certificate is insecure")
}
if !strings.Contains(errs[0].Error(), "No root cert found!") {
t.Fatalf("Bad error message: %s", errs[0])
}
}