JAVA.IO.TAINT.VULN : Tainted Data in Vulnerable Method (Java)

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CodeSonar^® 9.2p0

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Java

JAVA.IO.TAINT.VULN : Tainted Data in Vulnerable Method (Java)

Summary

Tainted external data might flow into a vulnerable point.

Properties

Class Name

Tainted Data in Vulnerable Method (Java)

Significance

security

Mnemonic

JAVA.IO.TAINT.VULN

Categories

CWE	CWE:74	Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
	CWE:349	Acceptance of Extraneous Untrusted Data With Trusted Data
OWASP-2017	OWASP-2017:A1	Injection
	OWASP-2017:A5	Broken access control
OWASP-2021	OWASP-2021:A1	Broken access control
	OWASP-2021:A3	Injection
	OWASP-2021:A8	Software and data integrity failures
OWASP-2025	OWASP-2025:A05	Injection
	OWASP-2025:A08	Software or Data Integrity Failures

Availability

Available for Java and Kotlin.

Android Only. Warnings of this class will only be reported in Android code: that is, code that uses the Android API.

Enabling

Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += discard class="Tainted Data in Vulnerable Method (Java)"

Example

package com.juliasoft.julia.tests.checks.useOfUncontrolledExternalData;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;

import android.webkit.WebView;

public class UncontrolledActivity extends Activity
{
  WebView mWebView;
      
  protected void onCreate(Bundle paramBundle)  {
      super.onCreate(paramBundle);
      BroadcastReceiver receiver = new BroadcastReceiver() {
          public void onReceive(Context arg0, Intent intent) {
          String s = intent.getStringExtra("url");
          Intent i = new Intent(Intent.ACTION_VIEW);
          i = i.setAction(s);
          startActivity(i);   // "Tainted Data in Vulnerable Method (Java)" warning issued here 
          }
      };
  }
}

The warning is relative to external intent and its data. An external intent with external data could lead to security issues, because could be executed activity with untrusted data.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

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