Boston Key Party CTF 2014 - VM

this vm needs a license to run. we don’t have the license!
http://bostonkeyparty.net/challenges/vm-2fbed3f5a894d56be6b2ba328f9e2411

這幾天有點時間,解了幾題去年 Boston Key Party CTF 的題目,做個紀錄

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No cON Name CTF Quals 2014 - eXPLicit

Make me eXPLode! Hint: maybe you want to give a look at the binary…
https://ctf.noconname.org/chdownloads/explicit
Url: 88.87.208.163:7070
Points: 500

題目是個猜數字遊戲:

$ nc 88.87.208.163 7070
Welcome to Guess The Number Online!

Pick a number between 0 and 20:
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No cON Name CTF Quals 2014: inBINcible

Get the key. The flag is: “NcN_” + sha1sum(key)
https://ctf.noconname.org/chdownloads/inbincible
Points: 400

題目為 ELF 32bit ELF,執行後只會顯示 Nope! 訊息
從程式中的函數名稱 _rt0_go() 可以看出是 Go 的執行檔

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No cON Name CTF Quals 2014 - imMISCible

No hints :( Just go and get the flag.
https://ctf.noconname.org/chdownloads/immiscible
Points: 200

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HITCON CTF 2014 - G8LA

The flag format is HITCON{md5(PASSWORD).lower()}.
https://raw.githubusercontent.com/hitcon2014ctf/ctf/master/ggyy-99b3ed3ed5e2a293c697784ac94ee8c6.pcap
https://www.dropbox.com/s/d6bpgcsk1flbfyt/ggyy-99b3ed3ed5e2a293c697784ac94ee8c6.pcap

給了個 pcap ,提示說要取得 FLAG 這個 User 的密碼

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