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🔒 Update supported TLS cipher suites 

The list of cipher suites included in this commit are consistent with
the values and precedence in the [Golang TLS documentation](https://golang.org/src/crypto/tls/cipher_suites.go).

> **Note:** Cipher suites with RC4 are still included within the list
> of accepted values for compatibility, but **these cipher suites are
> not safe to use** and should be deprecated with warnings and
> subsequently removed. Support for RC4 ciphers has already been
> removed or disabled by default in many prominent browsers and tools,
> including Golang.
>
> **References:**
>
>  * [RC4 on Wikipedia](https://en.wikipedia.org/wiki/RC4)
>  * [Mozilla Security Blog](https://blog.mozilla.org/security/2015/09/11/deprecating-the-rc4-cipher/)
This commit is contained in:
Devin Canterberry 2018-03-13 09:50:41 -07:00
parent 844a5fe8c0
commit c901307a47
No known key found for this signature in database
GPG Key ID: 46A3228937AB74EC
4 changed files with 73 additions and 43 deletions
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31
agent/config/runtime.go
View File

@ -1107,23 +1107,28 @@ type RuntimeConfig struct {
// //
// The values should be a list of the following values: // The values should be a list of the following values:
// //
// TLS_RSA_WITH_RC4_128_SHA // TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
// TLS_RSA_WITH_3DES_EDE_CBC_SHA // TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
// TLS_RSA_WITH_AES_128_CBC_SHA
// TLS_RSA_WITH_AES_256_CBC_SHA
// TLS_RSA_WITH_AES_128_GCM_SHA256
// TLS_RSA_WITH_AES_256_GCM_SHA384
// TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
// TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
// TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
// TLS_ECDHE_RSA_WITH_RC4_128_SHA
// TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
// TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
// TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
// TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 // TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
// TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 // TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
// TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 // TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
// TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 // TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
// TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
// TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
// TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
// TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
// TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
// TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
// TLS_RSA_WITH_AES_128_GCM_SHA256
// TLS_RSA_WITH_AES_256_GCM_SHA384
// TLS_RSA_WITH_AES_128_CBC_SHA256
// TLS_RSA_WITH_AES_128_CBC_SHA
// TLS_RSA_WITH_AES_256_CBC_SHA
// TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
// TLS_RSA_WITH_3DES_EDE_CBC_SHA
// TLS_RSA_WITH_RC4_128_SHA
// TLS_ECDHE_RSA_WITH_RC4_128_SHA
// TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
// //
// todo(fs): IMHO, we should also support the raw 0xNNNN values from // todo(fs): IMHO, we should also support the raw 0xNNNN values from
// todo(fs): https://golang.org/pkg/crypto/tls/#pkg-constants // todo(fs): https://golang.org/pkg/crypto/tls/#pkg-constants

2
agent/config/runtime_test.go
View File

@ -2581,7 +2581,7 @@ func TestFullConfig(t *testing.T) {
"statsd_address": "drce87cy", "statsd_address": "drce87cy",
"statsite_address": "HpFwKB8R" "statsite_address": "HpFwKB8R"
}, },
"tls_cipher_suites": "TLS_RSA_WITH_RC4_128_SHA,TLS_RSA_WITH_3DES_EDE_CBC_SHA", "tls_cipher_suites": "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"tls_min_version": "pAOWafkR", "tls_min_version": "pAOWafkR",
"tls_prefer_server_cipher_suites": true, "tls_prefer_server_cipher_suites": true,
"translate_wan_addrs": true, "translate_wan_addrs": true,

31
tlsutil/config.go
View File

@ -361,23 +361,28 @@ func ParseCiphers(cipherStr string) ([]uint16, error) {
ciphers := strings.Split(cipherStr, ",") ciphers := strings.Split(cipherStr, ",")
cipherMap := map[string]uint16{ cipherMap := map[string]uint16{
"TLS_RSA_WITH_RC4_128_SHA": tls.TLS_RSA_WITH_RC4_128_SHA, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
"TLS_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
"TLS_RSA_WITH_AES_128_CBC_SHA": tls.TLS_RSA_WITH_AES_128_CBC_SHA,
"TLS_RSA_WITH_AES_256_CBC_SHA": tls.TLS_RSA_WITH_AES_256_CBC_SHA,
"TLS_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
"TLS_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_RSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
"TLS_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
"TLS_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
"TLS_RSA_WITH_AES_128_CBC_SHA256": tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
"TLS_RSA_WITH_AES_128_CBC_SHA": tls.TLS_RSA_WITH_AES_128_CBC_SHA,
"TLS_RSA_WITH_AES_256_CBC_SHA": tls.TLS_RSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
"TLS_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
"TLS_RSA_WITH_RC4_128_SHA": tls.TLS_RSA_WITH_RC4_128_SHA,
"TLS_ECDHE_RSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
} }
for _, cipher := range ciphers { for _, cipher := range ciphers {
if v, ok := cipherMap[cipher]; ok { if v, ok := cipherMap[cipher]; ok {

52
tlsutil/config_test.go
View File

@ -513,32 +513,52 @@ func TestConfig_IncomingTLS_TLSMinVersion(t *testing.T) {
func TestConfig_ParseCiphers(t *testing.T) { func TestConfig_ParseCiphers(t *testing.T) {
testOk := strings.Join([]string{ testOk := strings.Join([]string{
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA", "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
"TLS_RSA_WITH_AES_128_CBC_SHA", "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_128_GCM_SHA256", "TLS_RSA_WITH_AES_128_GCM_SHA256",
"TLS_RSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_256_GCM_SHA384", "TLS_RSA_WITH_AES_256_GCM_SHA384",
"TLS_RSA_WITH_AES_128_CBC_SHA256",
"TLS_RSA_WITH_AES_128_CBC_SHA",
"TLS_RSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
"TLS_RSA_WITH_3DES_EDE_CBC_SHA",
"TLS_RSA_WITH_RC4_128_SHA",
"TLS_ECDHE_RSA_WITH_RC4_128_SHA",
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"
}, ",") }, ",")
ciphers := []uint16{ ciphers := []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_RSA_WITH_AES_128_CBC_SHA, tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_GCM_SHA384, tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
} }
v, err := ParseCiphers(testOk) v, err := ParseCiphers(testOk)
if err != nil { if err != nil {