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update(ciscnxccb2025): add ccb final pictures
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source/_posts/ciscnxccb2025/ccb.ez_orw.md

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title: 长城杯 2025 决赛 - orw
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date: 2025/08/03 17:48:00
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updated: 2025/08/03 17:48:00
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updated: 2025/08/03 18:43:00
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tags:
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- protobuf
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- shellcode
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- tricks
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- offline
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thumbnail: /assets/ciscnxccb2025/pbpt.png
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excerpt: 利用 **protobuf-pwn-tool** 还原结构体,分析错误RC4实现与无效seccomp,构造可打印shellcode绕过检查获取shell。
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## 参考
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1. [Rea1Atomic/protobuf-pwn-tool](https://github.com/Rea1Atomic/protobuf-pwn-tool)
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## 回顾
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决赛跑到福建比赛了,主办方有协议酒店,然后我们选了那个温泉酒店。奇葩的是酒店离场地非常远,
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有20+km,会有专车接送。场地挺大,采光很好,中饭是盒饭。
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pwn喜提爆0,最后28名,三等奖保底了。
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{% folding blue::一些照片 %}
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<img src="/assets/ciscnxccb2025/ccb.room.jpg" width="50%">
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<center><em>酒店房间玻璃上有弹孔😨</em></center>
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<img src="/assets/ciscnxccb2025/ccb.dinner.jpg" width="50%">
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<center><em>去的那天晚上酒店提供晚饭,结果没想到是盒饭</em></center>
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<img src="/assets/ciscnxccb2025/ccb.hotel.jpg" width="50%">
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<center><em>酒店正门照</em></center>
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<img src="/assets/ciscnxccb2025/ccb.gift.jpg" width="50%">
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<center><em>参赛礼😋</em></center>
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<img src="/assets/ciscnxccb2025/ccb.live.jpg" width="50%">
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<center><em>比赛现场</em></center>
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{% endfolding %}
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{% folding green::一些平台界面截图 %}
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和半决赛差不多
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![platform](/assets/ciscnxccb2025/ccb-ctf.png)
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<center><em>CTF界面</em></center>
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![challenge](/assets/ciscnxccb2025/ccb-chal.png)
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<center><em>题目界面</em></center>
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![category](/assets/ciscnxccb2025/ccb-category.png)
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<center><em>总共分CTF和渗透两个赛道</em></center>
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{% endfolding %}
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