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    buuoj PWN ciscn_2019_c_1&ciscn_2019_en_2

    学习打卡区
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    • S
      scsh last edited by

      ciscn_2019_c_1
      9ee4d86c-69fc-4297-b153-d8962ea16d8a-image.png
      7916f494-263d-4edd-8f69-37b4834725fa-image.png 栈溢出
      输入的内容会被加密,有strlen函数,可以通过在payload开头放上 \0 来绕过加密;
      没有system函数,所以考虑libc;
      题目部署在Ubuntu18上调用system需要栈对齐,所以填充ret;
      exp627dc81d-858d-432f-aadb-8107020b3af4-image.png
      ef8abcd4-040a-4768-8bd8-71ff4cd3ce08-image.png

      ciscn_2019_en_2
      和上一题差不多,直接copy

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