Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Create jasonch1u #30

Merged
merged 1 commit into from
Sep 13, 2024
Merged
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
92 changes: 92 additions & 0 deletions jasonch1u
Original file line number Diff line number Diff line change
@@ -0,0 +1,92 @@
---
timezone: Asia/Shanghai
---

> 请在上边的 timezone 添加你的当地时区,这会有助于你的打卡状态的自动化更新,如果没有添加,默认为北京时间 UTC+8 时区
> 时区请参考以下列表,请移除 # 以后的内容

timezone: Pacific/Honolulu # 夏威夷-阿留申标准时间 (UTC-10)

timezone: America/Anchorage # 阿拉斯加夏令时间 (UTC-8)

timezone: America/Los_Angeles # 太平洋夏令时间 (UTC-7)

timezone: America/Denver # 山地夏令时间 (UTC-6)

timezone: America/Chicago # 中部夏令时间 (UTC-5)

timezone: America/New_York # 东部夏令时间 (UTC-4)

timezone: America/Halifax # 大西洋夏令时间 (UTC-3)

timezone: America/St_Johns # 纽芬兰夏令时间 (UTC-2:30)

timezone: Asia/Dubai # 海湾标准时间 (UTC+4)

timezone: Asia/Kolkata # 印度标准时间 (UTC+5:30)

timezone: Asia/Dhaka # 孟加拉国标准时间 (UTC+6)

timezone: Asia/Bangkok # 中南半岛时间 (UTC+7)

timezone: Asia/Shanghai # 中国标准时间 (UTC+8)

timezone: Asia/Tokyo # 日本标准时间 (UTC+9)

timezone: Australia/Sydney # 澳大利亚东部标准时间 (UTC+10)

---

# Jasonch1u

1. 自我介绍:一個參加完XREX Acamedy後,覺得區塊鍊技術很有趣的菜雞

2. 你认为你会完成本次残酷学习吗? 不好說

## Notes

<!-- Content_START -->

### 2024.09.23

學習內容:
- A 系列的 Ethernaut CTF, 之前做了差不多了. POC: [ethernaut-foundry-solutions](https://github.com/SunWeb3Sec/ethernaut-foundry-solutions)
- A 系列的 QuillAudit CTF 題目的網站關掉了, 幫大家收集了[題目](./Writeup/SunSec/src/QuillCTF/), 不過還是有幾題沒找到. 有找到題目的人可以在發出來.
- A 系列的 DamnVulnerableDeFi 有持續更新, 題目也不錯. [Damn Vulnerable DeFi](https://github.com/theredguild/damn-vulnerable-defi/tree/v4.0.0).
- 使用 [Foundry](https://book.getfoundry.sh/) 在本地解題目, 可以參考下面 RoadClosed 為例子
- ``forge test --match-teat testRoadClosedExploit -vvvv``
#### [QuillAudit CTF - RoadClosed](./Writeup/SunSec/src/QuillCTF/RoadClosed.sol)
```
function addToWhitelist(address addr) public {
require(!isContract(addr), "Contracts are not allowed");
whitelistedMinters[addr] = true;
}

function changeOwner(address addr) public {
require(whitelistedMinters[addr], "You are not whitelisted");
require(msg.sender == addr, "address must be msg.sender");
require(addr != address(0), "Zero address");
owner = addr;
}

function pwn(address addr) external payable {
require(!isContract(msg.sender), "Contracts are not allowed");
require(msg.sender == addr, "address must be msg.sender");
require(msg.sender == owner, "Must be owner");
hacked = true;
}

function pwn() external payable {
require(msg.sender == pwner);
hacked = true;
}
```
- 解決這個題目需要成為合約的 owner 和 hacked = true.
- On-chain: 可以透過 ``cast send`` 或是 forge script 來解.
- Local: 透過 forge test 通常是在local解題, 方便 debug.
- RoadClosed 為例子我寫了2個解題方式. testRoadClosedExploit 和 testRoadClosedContractExploit (因為題目有檢查msg.sender是不是合約, 所以可以透過constructor來繞過 isContract)
- [POC](./Writeup/SunSec/test/QuillCTF/RoadClosed.t.sol)

###

<!-- Content_END -->
Loading