Linux-Kernel-analyze-pipe
2025-10-24 10 words 1 min

Linux-Kernel-analyze-pipe

先記錄在這https://hackmd.io/@naup96321/HkS86zu_ex
steam-DRM
2025-10-24 6 words 1 min

steam-DRM

Here's something encrypted, password is required to continue reading.
speed-run-r1rn-kernel-challenge
2025-10-24 8.1k words 43 mins

speed-run-r1rn-kernel-challenge

Speed Run r1rn kernel challenge noteCross-Cache Attackslub 相關的知識可以參考這https://hackmd.io/@naup96321/BkeiK5Kexl 這邊簡單在介紹一次 我們可以知道，整個 OS 有相當多的 kmem_cache 這種 memory pool他會嘗試去找對應大小 object 的 kmem_cache其拿取的順序會從 kmem_cache_cpu 的 freelist，然後 active slab freelist，partial然後去 kmem_cache_node partial最後如果都沒有可用的，就
2025-AEGIS-CTF-writeup
2025-10-24 1.8k words 10 mins

2025-AEGIS-CTF-writeup

2025 神盾杯 Qual - writeup Author: 堇姬 Naup 跟 CakeisTheFake 拿了第三名 高速 speedrun writeup HiProxyACL rules 擋下了訪問 admin直接 urlencode bypasscurl -i https://aegis2025-web-ha.chals.io/%61dmin AEGIS{H77P_r3QU357_5MU6611N6_5UCC355} n2analyzemain function 提供了三個功能，add、backup_and_delete、show 12345678910111
2025-HITCON-CTF-Writeup
2025-10-24 2.4k words 15 mins

2025-HITCON-CTF-Writeup

2025 HITCON CTF - writeup Author : 堇姬 Naup Note some cool challenge which i meet Final scoreboard Pholyglot! - 🍊12345678910111213141516171819202122<?php $sandbox = '/www/sandbox/' . md5("orange" . $_SERVER['REMOTE_ADDR']); @mkdir($sandbox); @chdir($sand
Sekai CTF 2025 - Learning OOP
2025-08-18 1.9k words 11 mins

Sekai CTF 2025 - Learning OOP

Sekai CTF 2025 - Learning OOP Author: naup96321 analyzeThis is one cpp pwn challenge. 123456789101112131415161718192021222324252627282930313233343536373839int main(int argc, char *argv[]) { init(); int choice = 0; while(1) { menu(); std::cin >> choice;
AIS3 2025 - 助教 & KoH 心得
2025-08-04 3.7k words 15 mins

AIS3 2025 - 助教 & KoH 心得

AIS3 2025 - 助教 & KoH 出題心得 Author: 堇姬Naup 目前已經 open source 了 KoH，各位可以載下來玩https://github.com/Naupjjin/2025-AIS3-KoH AD & KoH 直播https://www.youtube.com/watch?v=y3PbmYq9bcQhttps://www.youtube.com/live/nNU9_lUObsMhttps://www.youtube.com/live/vXpJXz2uPZA 起源這次是擔任 CTF 組 (進階資安攻防競技) 的助教，那時候時間是 7&#x2F
Linux Kernel - Page Table - Virtual address to physical address
2025-07-24 1.3k words 6 mins

Linux Kernel - Page Table - Virtual address to physical address

Page Table - Virtual address to physical address Author: 堇姬Naup 前言把之前寫到一半的完善好了，丟上來https://hackmd.io/@naup96321/H1gx5xJDle qemu monitorhttps://qemu-project.gitlab.io/qemu/system/monitor.html可以用他來讀寫物理記憶體或是做很多事情把 Qemu 加上 -monitor unix:/tmp/qemu-monitor.sock,server,nowait 後 load 這支https://github.co
2025-downunderCTF-writeup
2025-07-20 1.1k words 6 mins

2025-downunderCTF-writeup

2025 DownUnder CTF - Writeup Author: 堇姬 NaupCTFteam: Squid Proxy LoversRank: 8th 前言I was quite busy during this competition, so I only solved two challenges (I’ll just write more interesting one challenge — It is kernel pwn). This was also my first time playing a CTF together with SPL. It looks s
2025 CryptoCTF - writeup
2025-07-20 27 words 1 min

2025 CryptoCTF - writeup

2025 Crypto CTF - writeup Author : 堇姬 NaupTeam: NullCipherRank: All 23rd & Taiwan 2nd Writeup 可以直接看這裡https://hackmd.io/@naup96321/Hk7XLVf8le