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Make lesson csrf-7 stricter (do not allow invalid JSON, e.g. trailing =)

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This commit is contained in:
Matthias Grundmann 2019-07-12 16:49:57 +02:00 committed by Nanne Baars
parent 924a53c22a
commit 139651615e
2 changed files with 8 additions and 0 deletions
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1
pom.xml
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@ -126,6 +126,7 @@
<commons-io.version>2.6</commons-io.version>
<guava.version>18.0</guava.version>
<hsqldb.version>2.3.4</hsqldb.version>
<jackson.version>2.9.9</jackson.version>
<junit.version>4.12</junit.version>
<lombok.version>1.18.4</lombok.version>
<maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>

7
webgoat-lessons/csrf/src/main/java/org/owasp/webgoat/plugin/CSRFFeedback.java
View File

@ -1,5 +1,6 @@
package org.owasp.webgoat.plugin;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;
@ -38,6 +39,12 @@ public class CSRFFeedback extends AssignmentEndpoint {
@ResponseBody
public AttackResult completed(HttpServletRequest request, @RequestBody String feedback) {
try {
objectMapper.enable(DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES);
objectMapper.enable(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES);
objectMapper.enable(DeserializationFeature.FAIL_ON_NUMBERS_FOR_ENUMS);
objectMapper.enable(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY);
objectMapper.enable(DeserializationFeature.FAIL_ON_MISSING_CREATOR_PROPERTIES);
objectMapper.enable(DeserializationFeature.FAIL_ON_TRAILING_TOKENS);
objectMapper.readValue(feedback.getBytes(), Map.class);
} catch (IOException e) {
return failed().feedback(ExceptionUtils.getStackTrace(e)).build();