> For the complete documentation index, see [llms.txt](https://docs.cooku222.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cooku222.kr/security/web-hacking/lord-of-sql-injection/lord-of-sqlinjection-giant.md).
# \[Lord Of SQLInjection] giant
여기서 살펴봐야할 코드는 다음과 같다.
```
if(strlen($_GET[shit])>1) exit("No Hack ~_~");
```
→ shit의 길이가 1보다 크면 뚫을 수 없게 해놨다.
```
$query = "select 1234 from{$_GET[shit]}prob_giant where 1";
```
그리고 from과 prob\_giant가 붙어있다 = 공백이 없음
```
if(preg_match('/|\\n|\\r|\\t/i', $_GET[shit])) exit("HeHe");
```
→ 여기서 필터링 되는 구문들이 몇 개 있다.
우선 공백을 넣는 방법은 대표적으로 다섯개 존재한다.
%09 (tab \t)
%0a (linefeed \n)
%0b (vertical tab)
%0c (form feed)
%0d (carriage return \r)
⇒ 여기서 %0b와 %0c만 필터링 안 된다는 것을 알 수 있다.
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