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出给第一届华师暨大招新赛XSCTF的题目

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预期:3解

实际:0解

题目附件在 release 目录

XS Club

Title: XS Club

Intro: XS-Club今天开业啦,冲冲冲!(记得带上你的会员邀请码哦 ^_^)

Flag: flag{Trance_House___Ra1s3_y0ur_h4nd5_up}

Hint:

  1. sub_CF6函数是一次base64编码
  2. printf打印字符串可以连带泄露栈上数据
  3. 测信道(逐字节爆破)
  4. 利用strcmp返回值控制rax
  5. 注意gets读入时遇到换行符截断(检查payload是否包含换行符)

Attachment: ./release/club

#!/bin/sh cd ./ctf_xinetd docker build -t "club" . docker run -d -p <pub_port>:9999 -h "club" --name="club" club

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