使用phpstudy搭建滲透測試靶場環境???????????

目錄

1.Low級別

2.mediun級別

3.high級別

4.impossible級別

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1.Low級別

文件源代碼：

<?phpif( isset( $_GET[ 'Login' ] ) ) {// Get username$user = $_GET[ 'username' ];// Get password$pass = $_GET[ 'password' ];$pass = md5( $pass );// Check the database$query = "SELECT * FROM `users` WHERE user = '$user' AND password = '$pass';";$result = mysqli_query($GLOBALS["___mysqli_ston"], $query ) or die( '<pre>' . ((is_object($GLOBALS["___mysqli_ston"])) ? mysqli_error($GLOBALS["___mysqli_ston"]) : (($___mysqli_res = mysqli_connect_error()) ? $___mysqli_res : false)) . '</pre>' );if( $result && mysqli_num_rows( $result ) == 1 ) {// Get users details$row = mysqli_fetch_assoc( $result );$avatar = $row["avatar"];// Login successfulecho "<p>Welcome to the password protected area {$user}</p>";echo "<img src=\"{$avatar}\" />";}else {// Login failedecho "<pre><br />Username and/or password incorrect.</pre>";}((is_null($___mysqli_res = mysqli_close($GLOBALS["___mysqli_ston"]))) ? false : $___mysqli_res); }?>

分析可得沒有過濾，直接萬能密碼。

使用admin' or '1'='1后，密碼為空，拼接后的內容：

$query = "SELECT * FROM `users` WHERE user = 'admin' or '1'='1' AND password = 'd41d8cd98f00b204e9800998ecf8427e';";

成功

2.mediun級別

分析其源碼可見特殊字符會被函數轉義，那就試試暴力破解。

使用burpsuite抓包：

選中不確定項（節約時間建議只選password）

?在lntruder爆破

如果來真的自然是漫長的等待

?不過實驗還是自己寫個密碼本吧，清空，再重新加入自己寫的密碼

[]~(￣▽￣)~*

?

搞定

3.high級別

抓包可見，登錄驗證時提交了四個參數：username、password、Login以及user_token。

設置線程

?然后就老樣子，節約時間，password以及user_token參數設置為變量，攻擊類型選擇pitchfork。

?

?先點R額fetchresponse獲取信息，再將token選中后復制確認

?

?

?打出

4.impossible級別

源代碼

<?phpif( isset( $_POST[ 'Login' ] ) && isset ($_POST['username']) && isset ($_POST['password']) ) {// Check Anti-CSRF tokencheckToken( $_REQUEST[ 'user_token' ], $_SESSION[ 'session_token' ], 'index.php' );// Sanitise username input$user = $_POST[ 'username' ];$user = stripslashes( $user );$user = ((isset($GLOBALS["___mysqli_ston"]) && is_object($GLOBALS["___mysqli_ston"])) ? mysqli_real_escape_string($GLOBALS["___mysqli_ston"], $user ) : ((trigger_error("[MySQLConverterToo] Fix the mysql_escape_string() call! This code does not work.", E_USER_ERROR)) ? "" : ""));// Sanitise password input$pass = $_POST[ 'password' ];$pass = stripslashes( $pass );$pass = ((isset($GLOBALS["___mysqli_ston"]) && is_object($GLOBALS["___mysqli_ston"])) ? mysqli_real_escape_string($GLOBALS["___mysqli_ston"], $pass ) : ((trigger_error("[MySQLConverterToo] Fix the mysql_escape_string() call! This code does not work.", E_USER_ERROR)) ? "" : ""));$pass = md5( $pass );// Default values$total_failed_login = 3;$lockout_time = 15;$account_locked = false;// Check the database (Check user information)$data = $db->prepare( 'SELECT failed_login, last_login FROM users WHERE user = (:user) LIMIT 1;' );$data->bindParam( ':user', $user, PDO::PARAM_STR );$data->execute();$row = $data->fetch();// Check to see if the user has been locked out.if( ( $data->rowCount() == 1 ) && ( $row[ 'failed_login' ] >= $total_failed_login ) ) {// User locked out. Note, using this method would allow for user enumeration!//echo "<pre><br />This account has been locked due to too many incorrect logins.</pre>";// Calculate when the user would be allowed to login again$last_login = strtotime( $row[ 'last_login' ] );$timeout = $last_login + ($lockout_time * 60);$timenow = time();/*print "The last login was: " . date ("h:i:s", $last_login) . "<br />";print "The timenow is: " . date ("h:i:s", $timenow) . "<br />";print "The timeout is: " . date ("h:i:s", $timeout) . "<br />";*/// Check to see if enough time has passed, if it hasn't locked the accountif( $timenow < $timeout ) {$account_locked = true;// print "The account is locked<br />";}}// Check the database (if username matches the password)$data = $db->prepare( 'SELECT * FROM users WHERE user = (:user) AND password = (:password) LIMIT 1;' );$data->bindParam( ':user', $user, PDO::PARAM_STR);$data->bindParam( ':password', $pass, PDO::PARAM_STR );$data->execute();$row = $data->fetch();// If its a valid login...if( ( $data->rowCount() == 1 ) && ( $account_locked == false ) ) {// Get users details$avatar = $row[ 'avatar' ];$failed_login = $row[ 'failed_login' ];$last_login = $row[ 'last_login' ];// Login successfulecho "<p>Welcome to the password protected area <em>{$user}</em></p>";echo "<img src=\"{$avatar}\" />";// Had the account been locked out since last login?if( $failed_login >= $total_failed_login ) {echo "<p><em>Warning</em>: Someone might of been brute forcing your account.</p>";echo "<p>Number of login attempts: <em>{$failed_login}</em>.<br />Last login attempt was at: <em>${last_login}</em>.</p>";}// Reset bad login count$data = $db->prepare( 'UPDATE users SET failed_login = "0" WHERE user = (:user) LIMIT 1;' );$data->bindParam( ':user', $user, PDO::PARAM_STR );$data->execute();} else {// Login failedsleep( rand( 2, 4 ) );// Give the user some feedbackecho "<pre><br />Username and/or password incorrect.<br /><br/>Alternative, the account has been locked because of too many failed logins.<br />If this is the case, <em>please try again in {$lockout_time} minutes</em>.</pre>";// Update bad login count$data = $db->prepare( 'UPDATE users SET failed_login = (failed_login + 1) WHERE user = (:user) LIMIT 1;' );$data->bindParam( ':user', $user, PDO::PARAM_STR );$data->execute();}// Set the last login time$data = $db->prepare( 'UPDATE users SET last_login = now() WHERE user = (:user) LIMIT 1;' );$data->bindParam( ':user', $user, PDO::PARAM_STR );$data->execute(); }// Generate Anti-CSRF token generateSessionToken();?>

? Impossible級別的代碼加入了可靠的防爆破機制，當檢測到錯誤登錄3次后將會鎖定賬戶15s，系統會將賬戶鎖定，爆破也就無法繼續同時采用了更為安全的PDO（PHP Data Object）機制。簡單來說輸入錯誤會進入等待時間

總結

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