2009 - CTF 출제문제..

 

Level : 1
Point : 100

http://221.143.48.96:8080/level1.jsp

 

문제풀이에 영향이 있을만한 오타가 하나 있어서

수정하였습니다.

 

쿠키값에 대한 글짜 수정이었습니다.

 

문제 풀이에 있어서 참고가 되었으면 합니다.

there is a typo on problem influenced solving point 100.

we already motify this typo about cookie value.

we hope that we want you to refer to this fact, in order to solve point 100 (web)

motify -> modify

 

Level : 2
Point : 100

find the password

you should translate key to md5 encoded value and verify it.
Download : newbie

문제 설명 내용이 Update 되었습니다.

 

updated!

Level : 2
Point : 100

find the password <you should translate key to md5 encoded value and verify it.>

Level : 3
Point : 200

This program is Encoder.
I encoded the plaintext And memo the encoded string.
But I fotget the plaintext!!!
SHIT, What the...!!!
I don't have decoder!
I hope you decode this string!

Level : 4
Point : 200

http://wowhacker.org/~chmod777/1sec2oo9/

Level : 5
Point : 200

find the key!
Download : ad464242428b76125b16c0dae5c84a9c

Level : 6
Point : 300

221.143.48.88
Download : blackhole

Level : 7
Point : 300

solve it
Download : ppaguri.bmp

Level : 8
Point : 300

 

http://221.143.48.78:8080

 

힌트의 개념으로, 공지안내.

 

전혀 관련없는 부분인 ftp 부분에 대한 필터링이 들어갔습니다.

ftp와는 관련이 없으므로 ftp 쪽으로 노리셨던분들에

대한 필터링 입니다.

 

(문제풀이와 전혀 연관성이 없으므로, 혹시 ftp를 노리셨던 분들은 ftp 필터링이 되었음을 중간에 알수

있겠습니다)

 

또하나, 많은 질문을 하셨던 부분으로 원격파일을 읽어드리는 것이 아니냐에 대한 질문은은

원격파일을 읽어드리는 것이 아닙니다. 라고 말씀드립니다.

we added filtering string about ftp, but it's not envolved with solving level8 problem.
the purpose of ftp filtering is to avoid to approach by wrong aspect. (it's like as hint!!)
so you shouldn't attempt to dig this aspect(as i told you, ftp is not envolved with level8 :)
thanks.

 

Level : 9
Point : 300

Get the key ! (Filename : "key")
sshd => ip: 221.143.48.88 port: 4600

Level : 10
Point : 400

Decrypt the key.txt using key
Download : question.zip

Level : 11
Point : 400

1010100010101110111010100011011111100111110010110000110001100001
1011101010111011111011110110110011111111111001100100110010001100
0111011110111010101000111011101011000111001001100001100111001100
0110010001110110001000010111011011010010110100101001110110011101

if you get plaintext with blank spaces, in order to verify key, you should remove blank spaces
Download : 739061fc15befef867d541d6020ef8de.exe

Level : 12
Point : 400

Get the key. 221.143.48.88:8909

Download : isec

level12의 데몬파일의 컴파일 형식이 바뀌었습니다. (statically -> dynamically)

문제 소스는 변화가 없으니, 이점 알라두셨으면 좋겠습니다.

지금 Level12 데몬이 열려있습니다!!!

 

level12's daemon file has been changed. (statically -> dynamically)

very Sorry! Problem-Source did not change.

"Level12's Daemon Startup!!!"
 

Level : 13
Point : 500

server : 221.143.48.78
port : 7777
Download : hksup

Level : 14
Point : 500

http://easy-capcha.wowhacker.com/L_oG_i__n.php

Level : 14
Point : 500

Administrator password is very simple and short..

http://easy-capcha.wowhacker.com/L_oG_i__n.php

the password, level 14 problem, consists of maximum 7 characters and key string is not complicated..
password has only normal characters.

 

Level : 15
Point : 202

?????
Download : 2009ISEC.apm

Level : 16
Point : 203

??????
Download : Fishing.exe

 

 

PS) 몇몇문제는 다 못풀고.. 시간 끝나서 푼 문제들도 있고..

시간이 곧 생명이다(?)

 

그나저나 마지막 피싱문제에서 풉~~!!!

ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ