今天看一個(gè)項(xiàng)目代碼，文件不多，不過每個(gè)文件中都N多注入，一個(gè)一個(gè)看實(shí)在太累，索性花了點(diǎn)時(shí)間，弄了個(gè)正則表達(dá)式，搜索出來，然后再將安全的篩選出去。省了不少時(shí)間的說。 1.查找select、update、delete語(yǔ)句
((select|SELECT|update|UPDATE|delete|DELETE) .*(from|FROM|set|SET) .*(where|WHERE) .*) 查詢語(yǔ)句,對(duì)于沒有條件判斷的基本不存在注入問題，因而僅搜索此語(yǔ)句即可
例子：
select * from user where 2.簡(jiǎn)單的數(shù)字型注入
((select|SELECT|update|UPDATE|delete|DELETE) .*(from|FROM|set|SET) .*(where|WHERE) .*=[ ]?["]?["]?\$) 能找到select、update delete三種語(yǔ)句，5種格式的整形注入，如：
直接變量傳入
select * from guess where id=$subject_id
update guess set is_valid=0 where id=$subject_id
delete from guess where id=$subject_id
=與變量之間存在空格
select * from guess where id= $subject_id
update guess set is_valid=0 where id= $subject_id
delete from guess where id= $subject_id
變量雙引號(hào)
select * from guess where id="$subject_id"
update guess set is_valid=0 where id="$subject_id"
delete from guess where id="$subject_id"
=與雙引號(hào)之間存在空格
select * from guess where id= "$subject_id"
update guess set is_valid=0 where id= "$subject_id"
delete from guess where id= "$subject_id"
=與引號(hào)、雙引號(hào)之間存在空格
select * from guess where id= " $subject_id"
update guess set is_valid=0 where id= " $subject_id"
delete from guess where id= " $subject_id"

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