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Check for Null Issuer

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Closes gh-16989
This commit is contained in:
Josh Cummings 2025-04-28 11:18:32 -06:00
parent db48d4ca50
commit 5354e4d2c5
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GPG Key ID: 869B37A20E876129
2 changed files with 20 additions and 4 deletions
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13
saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/authentication/OpenSaml4AuthenticationProvider.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2024 the original author or authors.
* Copyright 2002-2025 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -391,7 +391,7 @@ public final class OpenSaml4AuthenticationProvider implements AuthenticationProv
String inResponseTo = response.getInResponseTo();
result = result.concat(validateInResponseTo(token.getAuthenticationRequest(), inResponseTo));
String issuer = response.getIssuer().getValue();
String issuer = issuer(response);
String destination = response.getDestination();
String location = token.getRelyingPartyRegistration().getAssertionConsumerServiceLocation();
if (StringUtils.hasText(destination) && !destination.equals(location)) {
@ -414,6 +414,13 @@ public final class OpenSaml4AuthenticationProvider implements AuthenticationProv
};
}
private static String issuer(Response response) {
if (response.getIssuer() == null) {
return null;
}
return response.getIssuer().getValue();
}
private static List<String> getStatusCodes(Response response) {
if (response.getStatus() == null) {
return List.of(StatusCode.SUCCESS);
@ -576,7 +583,7 @@ public final class OpenSaml4AuthenticationProvider implements AuthenticationProv
}
private void process(Saml2AuthenticationToken token, Response response) {
String issuer = response.getIssuer().getValue();
String issuer = issuer(response);
this.logger.debug(LogMessage.format("Processing SAML response from %s", issuer));
boolean responseSigned = response.isSigned();

11
saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/authentication/OpenSaml4AuthenticationProviderTests.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2024 the original author or authors.
* Copyright 2002-2025 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -861,6 +861,15 @@ public class OpenSaml4AuthenticationProviderTests {
provider.authenticate(token);
}
// gh-16989
@Test
public void authenticateWhenNullIssuerThenNoNullPointer() {
OpenSaml4AuthenticationProvider provider = new OpenSaml4AuthenticationProvider();
Response response = TestOpenSamlObjects.signedResponseWithOneAssertion((r) -> r.setIssuer(null));
Saml2AuthenticationToken token = token(response, verifying(registration()));
assertThatExceptionOfType(Saml2AuthenticationException.class).isThrownBy(() -> provider.authenticate(token));
}
private <T extends XMLObject> T build(QName qName) {
return (T) XMLObjectProviderRegistrySupport.getBuilderFactory().getBuilder(qName).buildObject(qName);
}