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更新日:2018/11/14
1
セッションハイジャック演習の進め方
2
セッションハイジャック演習の進め方
~準備編~
演習の準備をする①
3
「ファイル」->「ネットワーク再現」
より「LESSON_SH.xml」を
選択する.
すると仮想ネットワークが
表示されます
仮想ネットワークを構築する②
4
被害者用端末
攻撃者用端末
今回作成したネットワークは被害者がWebサーバに
ページをリクエスト・処理をするやり取りのパケットを
攻撃者が盗むということを想定しています
仮想ネットワークを構築する③
5
Webサーバの
コンソールより
パスワードは
「root」を
入力する
①
「被害者用端末」のアイコンを右クリックし
“VirtualBoxa起動”をクリックし起動する.
同様に,「攻撃者用端末」も行う.
②
仮想ネットワークを構築する④
6
攻撃者端末と被害者用端末へログイン
どちらもユーザID:「root」パスワード:「toor」
被害者用端末 攻撃者用端末
仮想ネットワークを構築する⑤
7
被害者用端末より「firefox」起動し
演習用Webサイト(192.168.10.254/web/index.html)
にアクセス
攻撃者用端末の
コンソールより
[$wireshark]と
コマンドを入力し
Wiresharkを起動する
8
これで演習の準備は完了です.
それではセッションハイジャック演習を
始めてみましょう!
9
セッションハイジャック演習の進め方
~演習編~
EditThisCookieの使い方
 EditThisCookie
GoogleChromeの拡張機能
クッキーの確認・追加・削除を行える
10
ブラウザの右上に表示
されているクッキーの
アイコンがEditThisCookie
演習の進め方
① 攻撃者用端末よりターゲットのパケットだけを
監視できるようにフィルタリングする
② 被害者用端末よりユーザ登録を行って
実際にログインしてみる
③ 演習用Webページのトップの管理者用項目から
ユーザ登録できているか確認する
11
次ページに続く
演習の進め方
④ 攻撃者用端末よりターゲットのパケットから
セッションIDを盗む
⑤ 攻撃者用端末よりGoogleChromeを使用し
ターゲットになりすましてログインする
12
13
課題を通して脆弱性のあるWebサイトに
攻撃者用端末からログインできることを
確認してみましょう
確認できたら次は対策演習機能で
対策を講じてみましょう

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Editor's Notes

  1. 仮想ネットワーク構築GUIの左上の「ファイル」->「ネットワークの再現」->「///.xml」->「開く」で,演習用の仮想ネットワークを作成できます.
  2. 今回の演習用の仮想ネットワークは Vbox1が被害者であり,被害者がwebサーバよりページをリクエストすることを想定しています. Vbox2は攻撃者であり,被害者とWebサーバ間のパケットを盗聴できる環境を用意しています.
  3. Webサーバへログイン
  4. Vbox1とvbox2の起動
  5. Vbox1でfireboxより192.160.10.254/index.htmlへアクセス ユーザ登録より仮にユーザを登録する ログインできるか確かめる
  6. 攻撃者端末のコマンドからwiresharkの起動をする Ipアドレスと通信プロトコルのフィルタリングを行う そこから,被害者のログインを行なったパケットのやりとりからクッキーを見つけセッションIDをコピーする 次の攻撃者の端末からグーグルクロムで192.168.10.254/index.htmlにアクセス Editcookieを用いてアクセス するとログインできてしまう