1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.security.tls;
import com.yahoo.security.TrustManagerUtils;
import com.yahoo.security.X509CertificateUtils;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.X509ExtendedTrustManager;
import java.net.Socket;
import java.security.KeyStore;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A {@link X509ExtendedTrustManager} that performs additional certificate verification through {@link PeerAuthorizer}.
*
* Implementation assumes that provided {@link X509ExtendedTrustManager} will throw {@link IllegalArgumentException}
* when chain is empty or null.
*
* @author bjorncs
*/
class PeerAuthorizerTrustManager extends X509ExtendedTrustManager {
static final String AUTH_CONTEXT_PROPERTY = "vespa.tls.auth.ctx";
private static final Logger log = Logger.getLogger(PeerAuthorizerTrustManager.class.getName());
private final PeerAuthorizer authorizer;
private final X509ExtendedTrustManager defaultTrustManager;
private final AuthorizationMode mode;
private final HostnameVerification hostnameVerification;
PeerAuthorizerTrustManager(AuthorizedPeers authorizedPeers, AuthorizationMode mode,
HostnameVerification hostnameVerification, X509ExtendedTrustManager defaultTrustManager) {
this.authorizer = new PeerAuthorizer(authorizedPeers);
this.mode = mode;
this.hostnameVerification = hostnameVerification;
this.defaultTrustManager = defaultTrustManager;
}
PeerAuthorizerTrustManager(AuthorizedPeers authorizedPeers, AuthorizationMode mode,
HostnameVerification hostnameVerification, KeyStore truststore) {
this(authorizedPeers, mode, hostnameVerification, TrustManagerUtils.createDefaultX509TrustManager(truststore));
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
defaultTrustManager.checkClientTrusted(chain, authType);
authorizePeer(chain, authType, true, null);
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
defaultTrustManager.checkServerTrusted(chain, authType);
authorizePeer(chain, authType, false, null);
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType, Socket socket) throws CertificateException {
defaultTrustManager.checkClientTrusted(chain, authType, socket);
authorizePeer(chain, authType, true, ((SSLSocket)socket).getHandshakeSession());
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType, Socket socket) throws CertificateException {
overrideHostnameVerificationForClient(socket);
defaultTrustManager.checkServerTrusted(chain, authType, socket);
authorizePeer(chain, authType, false, ((SSLSocket)socket).getHandshakeSession());
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType, SSLEngine sslEngine) throws CertificateException {
defaultTrustManager.checkClientTrusted(chain, authType, sslEngine);
authorizePeer(chain, authType, true, sslEngine.getHandshakeSession());
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType, SSLEngine sslEngine) throws CertificateException {
overrideHostnameVerificationForClient(sslEngine);
defaultTrustManager.checkServerTrusted(chain, authType, sslEngine);
authorizePeer(chain, authType, false, sslEngine.getHandshakeSession());
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return defaultTrustManager.getAcceptedIssuers();
}
private void authorizePeer(X509Certificate[] certChain, String authType, boolean isVerifyingClient,
SSLSession handshakeSessionOrNull) throws PeerAuthorizationFailedException {
log.fine(() -> "Verifying certificate: " + createInfoString(certChain[0], authType, isVerifyingClient));
ConnectionAuthContext result = mode != AuthorizationMode.DISABLE
? authorizer.authorizePeer(List.of(certChain))
: ConnectionAuthContext.defaultAllCapabilities(List.of(certChain));
if (handshakeSessionOrNull != null) {
handshakeSessionOrNull.putValue(AUTH_CONTEXT_PROPERTY, result);
} else {
log.log(Level.FINE,
() -> "Warning: unable to provide ConnectionAuthContext as no SSLSession is available");
}
if (result.authorized()) {
log.fine(() -> String.format("Verification result: %s", result));
} else {
String errorMessage = "Authorization failed: " + createInfoString(certChain[0], authType, isVerifyingClient);
log.warning(errorMessage);
if (mode == AuthorizationMode.ENFORCE) {
throw new PeerAuthorizationFailedException(errorMessage, List.of(certChain));
}
}
}
private String createInfoString(X509Certificate certificate, String authType, boolean isVerifyingClient) {
return String.format("DN='%s', SANs=%s, authType='%s', isVerifyingClient='%b', mode=%s",
certificate.getSubjectX500Principal(), X509CertificateUtils.getSubjectAlternativeNames(certificate),
authType, isVerifyingClient, mode);
}
private void overrideHostnameVerificationForClient(SSLEngine engine) {
SSLParameters params = engine.getSSLParameters();
if (overrideHostnameVerificationForClient(params)) {
engine.setSSLParameters(params);
}
}
private void overrideHostnameVerificationForClient(Socket socket) {
if (socket instanceof SSLSocket) {
SSLSocket sslSocket = (SSLSocket) socket;
SSLParameters params = sslSocket.getSSLParameters();
if (overrideHostnameVerificationForClient(params)) {
sslSocket.setSSLParameters(params);
}
}
}
// Overrides the endpoint identification algorithm specified in the ssl parameters of the ssl engine/socket.
// The underlying trust manager will perform hostname verification if endpoint identification algorithm is set to 'HTTPS'.
// Returns true if the parameter instance was modified
private boolean overrideHostnameVerificationForClient(SSLParameters params) {
String configuredAlgorithm = params.getEndpointIdentificationAlgorithm();
switch (hostnameVerification) {
case ENABLED:
if (!"HTTPS".equals(configuredAlgorithm)) {
params.setEndpointIdentificationAlgorithm("HTTPS");
return true;
}
return false;
case DISABLED:
if (configuredAlgorithm != null && !configuredAlgorithm.isEmpty()) {
params.setEndpointIdentificationAlgorithm(""); // disable any configured endpoint identification algorithm
return true;
}
return false;
default:
throw new IllegalStateException("Unknown host verification type: " + hostnameVerification);
}
}
}
|
