ISCTF2025 WP

比赛的时候就做了几道题

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1 min
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CTF
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writeupcvesstiisctf
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  1. WEB
  2. b@by n0t1ce b0ard
  3. 难过的bottle
  4. 题3

WEB

b@by n0t1ce b0ard

image-20251201232147878

文章提示很明显:CVE-2024-12233

官方:https://github.com/LamentXU123/cve/blob/main/RCE1.md

image-20251201232241485

根据poc解题

  1. 注册账号
  2. 上传一句话
  3. 访问/images/xx@xx.com/xx.php?cmd=xxx;

image-20251201232322551

难过的bottle

源码:

image-20251201235713293

查看源码发现,只剩a,f,g,l以及(),{}能用

这里可以通过全角字符绕过

{{ open('/flag').read() }}

image-20251201235959745

这里开全角符号:

image-20251202000309530

压缩成zip,上传即可得到flag

题3

Author
YU030X
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Images are sourced from the internet. Please contact me for removal if necessary.

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