Codegate CTF 2011


CTF Archive

Welcome to Codegate CTF 2011

Original Date: Fri, 01 April 2011, 17:32 UTC — Sat, 02 April 2011, 17:32 UTC
Original URL: http://www.codegate.org/
CTFtime Entry: Codegate CTF Finals 2011
Organizing Team: Ministry of Science and ICT


Challenges

Use flagCheck to input the md5sum of a malicious file you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

Use flagCheck to input the flag you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

we are investigating an illegal online gambling site. To find any evidence to support for illegal gambling, we must access the oracle database with administrator privileges. The suspect says that he does not know the administrator password, but we know for sure that he is lying.

The password is estimated to be longer than 8 characters. However, we don't have enough time to apply a brute-force attack. In order to request an arrest warrant, we must find the evidence of illegal gambling before the YUT-Challenge is over.

By using social engineering, we were able to find various data about the suspect. By analyzing the data, the suspect always include last four digits('1024') of his phone number in his password. Hence, we may assume that his phone number is included in the administrator password for the database.

The given file is the dump file of sys.user$ table in oracle database. (The data file of system tablespace is too big to upload.)

Find the password of 'SYSTEM' account.

Use flagCheck to input the flag you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

Use flagCheck to input the flag you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

We have been trying to read Bob's emails for 5 years.
We sniffed all his traffic and reversed his POP3 encrypted protocol.
He is using a good block cipher, CBC mode and unique initialization vectors for each command.
We easily found Alice password and decrypted her mails but we never found the server key or his passwords.
Until one day when Bob had very bad luck and we were able to decrypt all his mails.
Get bobpop.cap, discover what happened and read his mails.


Note: This challenge has not been solved during the ctf.

Author: Ministry of Science and ICT

Note: This challenge has not been solved during the ctf.

Use flagCheck to input the flag you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

Note: This challenge has not been solved during the ctf.

Use flagCheck to input the flag you get from the challenge to get the actual flag


Author: Ministry of Science and ICT

Note: This challenge has not been solved during the ctf.

Author: Ministry of Science and ICT

Note: This challenge has not been solved during the ctf.

Author: Ministry of Science and ICT


30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

Rank Hacker Badges Score