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Wireshark

Last updated at Posted at 2023-11-07

[picoCTF][Forensics][PcapPoisoning]

Writeup

  • pcapファイルなので、とりあえずWireshark。
    出力できるファイルも無さげ。
    仕方がないので、上から見ていく。
    IDとパスワードを送ってそうなパケットもある。
    メッセージっぽいパケットを発見。
    screenshot.png

  • Flag is close フラグは近くなのか。
    上から順に、Follow TCP Stream
    4番目を確認したら、フラグを発見
    screenshot 1.png
    screenshot 2.png

Writeup2

  • 大きいパケットなさそうだから、パケットサイズでSort。
    一番上のパケットに、フラグを発見。
    screenshot 3.png
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