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[Backport 2.x] Allow skipping hot reload dn validation #4839

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merged 2 commits into from
Oct 28, 2024
Merged

[Backport 2.x] Allow skipping hot reload dn validation #4839

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16c5683
Allow skipping hot reload dn validation (#4752)
github-actions[bot] Oct 23, 2024
8397c41
Adapt disable dn verification on cert reload changes to SSL refactor …
cwperks Oct 28, 2024
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31 changes: 23 additions & 8 deletions src/main/java/org/opensearch/security/ssl/DefaultSecurityKeyStore.java
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Original file line number Diff line number Diff line change
Expand Up @@ -122,7 +122,9 @@ private void printJCEWarnings() {
public final SslProvider sslTransportServerProvider;
public final SslProvider sslTransportClientProvider;
private final boolean httpSSLEnabled;
private final boolean httpSSLEnforceCertReloadDnVerification;
private final boolean transportSSLEnabled;
private final boolean transportSSLEnforceCertReloadDnVerification;

private List<String> enabledHttpCiphersJDKProvider;
private List<String> enabledHttpCiphersOpenSSLProvider;
Expand Down Expand Up @@ -155,10 +157,18 @@ public DefaultSecurityKeyStore(final Settings settings, final Path configPath) {
SSLConfigConstants.SECURITY_SSL_HTTP_ENABLED,
SSLConfigConstants.SECURITY_SSL_HTTP_ENABLED_DEFAULT
);
httpSSLEnforceCertReloadDnVerification = settings.getAsBoolean(
SSLConfigConstants.SECURITY_SSL_HTTP_ENFORCE_CERT_RELOAD_DN_VERIFICATION,
true
);
transportSSLEnabled = settings.getAsBoolean(
SSLConfigConstants.SECURITY_SSL_TRANSPORT_ENABLED,
SSLConfigConstants.SECURITY_SSL_TRANSPORT_ENABLED_DEFAULT
);
transportSSLEnforceCertReloadDnVerification = settings.getAsBoolean(
SSLConfigConstants.SECURITY_SSL_TRANSPORT_ENFORCE_CERT_RELOAD_DN_VERIFICATION,
true
);
final boolean useOpenSSLForHttpIfAvailable = OpenSearchSecuritySSLPlugin.OPENSSL_SUPPORTED
&& settings.getAsBoolean(SSLConfigConstants.SECURITY_SSL_HTTP_ENABLE_OPENSSL_IF_AVAILABLE, true);
final boolean useOpenSSLForTransportIfAvailable = OpenSearchSecuritySSLPlugin.OPENSSL_SUPPORTED
Expand Down Expand Up @@ -411,7 +421,7 @@ public void initTransportSSLConfig() {
certFromTruststore = new CertFromTruststore(truststoreProps, truststoreAlias);
}

validateNewCerts(transportCerts, certFromKeystore.getCerts());
validateNewCerts(transportCerts, certFromKeystore.getCerts(), transportSSLEnforceCertReloadDnVerification);
transportServerSslContext = buildSSLServerContext(
certFromKeystore.getServerKey(),
certFromKeystore.getServerCert(),
Expand Down Expand Up @@ -462,7 +472,7 @@ public void initTransportSSLConfig() {
certFromFile = new CertFromFile(certProps);
}

validateNewCerts(transportCerts, certFromFile.getCerts());
validateNewCerts(transportCerts, certFromFile.getCerts(), transportSSLEnforceCertReloadDnVerification);
transportServerSslContext = buildSSLServerContext(
certFromFile.getServerPemKey(),
certFromFile.getServerPemCert(),
Expand Down Expand Up @@ -560,7 +570,7 @@ public void initHttpSSLConfig() {
certFromTruststore = new CertFromTruststore(truststoreProps, truststoreAlias);
}

validateNewCerts(httpCerts, certFromKeystore.getCerts());
validateNewCerts(httpCerts, certFromKeystore.getCerts(), httpSSLEnforceCertReloadDnVerification);
httpSslContext = buildSSLServerContext(
certFromKeystore.getServerKey(),
certFromKeystore.getServerCert(),
Expand Down Expand Up @@ -591,7 +601,7 @@ public void initHttpSSLConfig() {
);
CertFromFile certFromFile = new CertFromFile(certFileProps);

validateNewCerts(httpCerts, certFromFile.getCerts());
validateNewCerts(httpCerts, certFromFile.getCerts(), httpSSLEnforceCertReloadDnVerification);
httpSslContext = buildSSLServerContext(
certFromFile.getServerPemKey(),
certFromFile.getServerPemCert(),
Expand Down Expand Up @@ -622,11 +632,16 @@ public void initHttpSSLConfig() {
* If the current and new certificates are same, skip remaining checks.
* For new X509 cert to be valid Issuer, Subject DN must be the same and
* new certificates should expire after current ones.
* @param currentX509Certs Array of current x509 certificates
* @param newX509Certs Array of x509 certificates which will replace our current cert
* @param currentX509Certs Array of current x509 certificates
* @param newX509Certs Array of x509 certificates which will replace our current cert
* @param verifyValidDNs Whether to verify that new certs have valid IssuerDN, SubjectDN and SAN
* @throws Exception if certificate is invalid
*/
private void validateNewCerts(final X509Certificate[] currentX509Certs, final X509Certificate[] newX509Certs) throws Exception {
private void validateNewCerts(
final X509Certificate[] currentX509Certs,
final X509Certificate[] newX509Certs,
final boolean verifyValidDNs
) throws Exception {

// First time we init certs ignore validity check
if (currentX509Certs == null) {
Expand All @@ -643,7 +658,7 @@ private void validateNewCerts(final X509Certificate[] currentX509Certs, final X5
}

// Check if new X509 certs have valid IssuerDN, SubjectDN or SAN
if (!hasValidDNs(currentX509Certs, newX509Certs)) {
if (verifyValidDNs && !hasValidDNs(currentX509Certs, newX509Certs)) {
throw new Exception("New Certs do not have valid Issuer DN, Subject DN or SAN.");
}
}
Expand Down
17 changes: 17 additions & 0 deletions src/main/java/org/opensearch/security/ssl/OpenSearchSecuritySSLPlugin.java
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Original file line number Diff line number Diff line change
Expand Up @@ -634,6 +634,23 @@ public List<Setting<?>> getSettings() {
Setting.longSetting(SSLConfigConstants.SECURITY_SSL_HTTP_CRL_VALIDATION_DATE, -1, -1, Property.NodeScope, Property.Filtered)
);

settings.add(
Setting.boolSetting(
SSLConfigConstants.SECURITY_SSL_HTTP_ENFORCE_CERT_RELOAD_DN_VERIFICATION,
true,
Property.NodeScope,
Property.Filtered
)
);
settings.add(
Setting.boolSetting(
SSLConfigConstants.SECURITY_SSL_TRANSPORT_ENFORCE_CERT_RELOAD_DN_VERIFICATION,
true,
Property.NodeScope,
Property.Filtered
)
);

return settings;
}

Expand Down
4 changes: 4 additions & 0 deletions src/main/java/org/opensearch/security/ssl/util/SSLConfigConstants.java
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,8 @@ public final class SSLConfigConstants {
public static final String SECURITY_SSL_HTTP_TRUSTSTORE_ALIAS = "plugins.security.ssl.http.truststore_alias";
public static final String SECURITY_SSL_HTTP_TRUSTSTORE_FILEPATH = "plugins.security.ssl.http.truststore_filepath";
public static final String SECURITY_SSL_HTTP_TRUSTSTORE_TYPE = "plugins.security.ssl.http.truststore_type";
public static final String SECURITY_SSL_HTTP_ENFORCE_CERT_RELOAD_DN_VERIFICATION =
"plugins.security.ssl.http.enforce_cert_reload_dn_verification";
public static final String SECURITY_SSL_TRANSPORT_ENABLE_OPENSSL_IF_AVAILABLE =
"plugins.security.ssl.transport.enable_openssl_if_available";
public static final String SECURITY_SSL_TRANSPORT_ENABLED = "plugins.security.ssl.transport.enabled";
Expand All @@ -91,6 +93,8 @@ public final class SSLConfigConstants {
public static final String SECURITY_SSL_TRANSPORT_ENFORCE_HOSTNAME_VERIFICATION_RESOLVE_HOST_NAME =
"plugins.security.ssl.transport.resolve_hostname";

public static final String SECURITY_SSL_TRANSPORT_ENFORCE_CERT_RELOAD_DN_VERIFICATION =
"plugins.security.ssl.transport.enforce_cert_reload_dn_verification";
public static final String SECURITY_SSL_TRANSPORT_KEYSTORE_ALIAS = "plugins.security.ssl.transport.keystore_alias";
public static final String SECURITY_SSL_TRANSPORT_SERVER_KEYSTORE_ALIAS = "plugins.security.ssl.transport.server.keystore_alias";
public static final String SECURITY_SSL_TRANSPORT_CLIENT_KEYSTORE_ALIAS = "plugins.security.ssl.transport.client.keystore_alias";
Expand Down
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