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Fix: add length validation to prevent 500 error on invalid usercode #1309

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Fix: add length validation to prevent 500 error on invalid usercode #1309

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9e19fdd
Fix userCode validation
martinr0x Jul 20, 2023
12625ee
fix formatting and tests
martinr0x Jul 21, 2023
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2 changes: 1 addition & 1 deletion ...orization/web/authentication/OAuth2DeviceAuthorizationConsentAuthenticationConverter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,7 @@ public Authentication convert(HttpServletRequest request) {

// user_code (REQUIRED)
String userCode = parameters.getFirst(OAuth2ParameterNames.USER_CODE);
if (!StringUtils.hasText(userCode) ||
if (!OAuth2EndpointUtils.validateUserCode(userCode) ||
parameters.get(OAuth2ParameterNames.USER_CODE).size() != 1) {
OAuth2EndpointUtils.throwError(
OAuth2ErrorCodes.INVALID_REQUEST,
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4 changes: 1 addition & 3 deletions ...ver/authorization/web/authentication/OAuth2DeviceVerificationAuthenticationConverter.java
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Expand Up @@ -30,7 +30,6 @@
import org.springframework.security.oauth2.server.authorization.web.OAuth2DeviceVerificationEndpointFilter;
import org.springframework.security.web.authentication.AuthenticationConverter;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StringUtils;

/**
* Attempts to extract a user code from {@link HttpServletRequest} for the
Expand All @@ -49,7 +48,6 @@ public final class OAuth2DeviceVerificationAuthenticationConverter implements Au
private static final String ERROR_URI = "https://datatracker.ietf.org/doc/html/rfc6749#section-5.2";
private static final Authentication ANONYMOUS_AUTHENTICATION = new AnonymousAuthenticationToken(
"anonymous", "anonymousUser", AuthorityUtils.createAuthorityList("ROLE_ANONYMOUS"));

@Override
public Authentication convert(HttpServletRequest request) {
if (!("GET".equals(request.getMethod()) || "POST".equals(request.getMethod()))) {
Expand All @@ -64,7 +62,7 @@ public Authentication convert(HttpServletRequest request) {

// user_code (REQUIRED)
String userCode = parameters.getFirst(OAuth2ParameterNames.USER_CODE);
if (!StringUtils.hasText(userCode) ||
if (!OAuth2EndpointUtils.validateUserCode(userCode) ||
parameters.get(OAuth2ParameterNames.USER_CODE).size() != 1) {
OAuth2EndpointUtils.throwError(
OAuth2ErrorCodes.INVALID_REQUEST,
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3 changes: 3 additions & 0 deletions ...ramework/security/oauth2/server/authorization/web/authentication/OAuth2EndpointUtils.java
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Expand Up @@ -95,4 +95,7 @@ static String normalizeUserCode(String userCode) {
return sb.toString();
}

static boolean validateUserCode(String userCode) {
return userCode != null && userCode.toUpperCase().replaceAll("[^A-Z\\d]+", "").length() == 8;
}
}
16 changes: 16 additions & 0 deletions ...tion/web/authentication/OAuth2DeviceAuthorizationConsentAuthenticationConverterTests.java
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Expand Up @@ -147,6 +147,22 @@ public void convertWhenEmptyUserCodeThenInvalidRequestError() {
// @formatter:on
}

@Test
public void convertWhenInvalidUserCodeThenInvalidRequestError() {
MockHttpServletRequest request = createRequest();
request.addParameter(OAuth2ParameterNames.STATE, STATE);
request.addParameter(OAuth2ParameterNames.CLIENT_ID, CLIENT_ID);
request.addParameter(OAuth2ParameterNames.USER_CODE, "LONG-USER-CODE");
// @formatter:off
assertThatExceptionOfType(OAuth2AuthenticationException.class)
.isThrownBy(() -> this.converter.convert(request))
.withMessageContaining(OAuth2ParameterNames.USER_CODE)
.extracting(OAuth2AuthenticationException::getError)
.extracting(OAuth2Error::getErrorCode)
.isEqualTo(OAuth2ErrorCodes.INVALID_REQUEST);
// @formatter:on
}

@Test
public void convertWhenMultipleUserCodeParametersThenInvalidRequestError() {
MockHttpServletRequest request = createRequest();
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14 changes: 14 additions & 0 deletions ...uthorization/web/authentication/OAuth2DeviceVerificationAuthenticationConverterTests.java
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Expand Up @@ -94,6 +94,20 @@ public void convertWhenEmptyUserCodeParameterThenInvalidRequestError() {
// @formatter:on
}

@Test
public void convertWhenInvalidUserCodeParameterThenInvalidRequestError() {
MockHttpServletRequest request = createRequest();
request.addParameter(OAuth2ParameterNames.USER_CODE, "LONG-USER-CODE");
// @formatter:off
assertThatExceptionOfType(OAuth2AuthenticationException.class)
.isThrownBy(() -> this.converter.convert(request))
.withMessageContaining(OAuth2ParameterNames.USER_CODE)
.extracting(OAuth2AuthenticationException::getError)
.extracting(OAuth2Error::getErrorCode)
.isEqualTo(OAuth2ErrorCodes.INVALID_REQUEST);
// @formatter:on
}

@Test
public void convertWhenMultipleUserCodeParameterThenInvalidRequestError() {
MockHttpServletRequest request = createRequest();
Expand Down