POC
题型属于Qunie构造形注入(payload===password)
构造挺麻烦的,所以我写了一个脚本
解这道题的过程
首先查看网页源码,得知
得到网站源码如下
<?php
include_once("lib.php");
function alertMes($mes,$url){
die("<script>alert('{$mes}');location.href='{$url}';</script>");
}
function checkSql($s) {
if(preg_match("/regexp|between|in|flag|=|>|<|and|\||right|left|reverse|update|extractvalue|floor|substr|&|;|\\\$|0x|sleep|\ /i",$s)){
alertMes('hacker', 'index.php');
}
}
if (isset($_POST['username']) && $_POST['username'] != '' && isset($_POST['password']) && $_POST['password'] != '') {
$username=$_POST['username'];
$password=$_POST['password'];
if ($username !== 'admin') {
alertMes('only admin can login', 'index.php');
}
checkSql($password);
$sql="SELECT password FROM users WHERE username='admin' and password='$password';";
$user_result=mysqli_query($con,$sql);
$row = mysqli_fetch_array($user_result);
if (!$row) {
alertMes("something wrong",'index.php');
}
if ($row['password'] === $password) {
die($FLAG);
} else {
alertMes("wrong password",'index.php');
}
}
if(isset($_GET['source'])){
show_source(__FILE__);
die;
}
?>
<!-- /?source -->
<html>
<body>
<form action="/index.php" method="post">
<input type="text" name="username" placeholder="账号"><br/>
<input type="password" name="password" placeholder="密码"><br/>
<input type="submit" / value="登录">
</form>
</body>
</html>
仔细审阅后,发现有回现,报错,盲注基本上都不行,实际上可以用like进行盲注,但我不会
这题就是让来构造Qunie的
EXP
直接上我写好的脚本跑一下就行了