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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
Java

JAVA.MISC.SD.CACHE : Sensitive Data Cached (Java)

要旨

Potentially sensitive data is stored in a cache.

The following are considered sensitive system data.

プロパティ

クラス名 Sensitive Data Cached (Java)
日本語クラス名 Sensitive Data Cached (Java)
クラス分類 セキュリティ (security)
ニーモニック JAVA.MISC.SD.CACHE
カテゴリー
CWE CWE:524 Use of Cache Containing Sensitive Information
CERT-Java CERT-Java:DRD22 Do not cache sensitive information
OWASP-2017 OWASP-2017:A3 Sensitive data exposure
OWASP-2021 OWASP-2021:A1 Broken access control
OWASP-2025 OWASP-2025:A01 Broken Access Control
対応言語 Available for Java and Kotlin.
有効/無効設定 このワーニングクラスのチェックはデフォルトで無効になっています。チェックを有効にするにはプロジェクト設定ファイル （configuration file）に以下の WARNING_FILTER ルールを追加してください。 
WARNING_FILTER += allow class="Sensitive Data Cached (Java)"

例

In the following example, an IMEI (International Mobile Equipment Identity) is cached in three different locations. 

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

import java.util.Locale;

import android.app.Activity;
import android.content.ClipData;
import android.content.ClipDescription;
import android.content.ClipboardManager;
import android.content.Context;
import android.provider.UserDictionary;
import android.telephony.TelephonyManager;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

public class CacheLeak extends Activity {

  public void MyMethod()
  {
      TelephonyManager telephonyManager = (TelephonyManager) getSystemService(this.TELEPHONY_SERVICE); 
      String imei=telephonyManager.getDeviceId();
      UserDictionary.Words.addWord(this, imei, 100, "imei" , Locale.ITALY); /* "Sensitive Data Cached (Java)" 
                                      * warning issued here: IMEI can be accessed through spellchecker and word suggestions. 
                                      */ 
  }

  public void MyMethod2()
  {
      TelephonyManager telephonyManager = (TelephonyManager) getSystemService(this.TELEPHONY_SERVICE); 
      String imei=telephonyManager.getDeviceId();
      ClipboardManager cpManage =  (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
      cpManage.setText(imei);        /* "Sensitive Data Cached (Java)" 
                                      * warning issued here: IMEI can be accessed by pasting from clipboard. 
                                      */ 
  }

  public void MyMethod4()
  {
      TelephonyManager telephonyManager = (TelephonyManager) getSystemService(this.TELEPHONY_SERVICE); 
      String imei=telephonyManager.getDeviceId();
      SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
      Editor editor = sharedPref.edit();
      editor.putString("key", imei); // "Sensitive Data Cached (Java)" warning issued here
                                      * warning issued here: IMEI can be accessed preferences and the autocompiling fields. 
                                      */ 
      editor.commit();
  }
}

関連のある設定ファイルパラメータ

設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。

 

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