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83 lines
5.8 KiB
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83 lines
5.8 KiB
Markdown
# SOME - Same Origin Method Execution
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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### [WhiteIntel](https://whiteintel.io)
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<figure><img src="../../.gitbook/assets/image (1227).png" alt=""><figcaption></figcaption></figure>
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[**WhiteIntel**](https://whiteintel.io) is a **dark-web** fueled search engine that offers **free** functionalities to check if a company or its customers have been **compromised** by **stealer malwares**.
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Their primary goal of WhiteIntel is to combat account takeovers and ransomware attacks resulting from information-stealing malware.
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You can check their website and try their engine for **free** at:
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{% embed url="https://whiteintel.io" %}
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***
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## Same Origin Method Execution
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There will be occasions where you can execute some limited javascript in a page. For example, in the case where you can[ **control a callback value that will be executed**](./#javascript-function).
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In those case, one of the best things that you could do is to **access the DOM to call whatever** sensitive action you can find in there (like clicking a button). However, usually you will find this vulnerability in **small endpoints without any interesting thing in the DOM**.
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In those scenarios, this attack will be very useful, because its goal is to be able to **abuse the limited JS execution inside a DOM from a different page from the same domain** with much interesting actions.
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Basically, the attack flow is the following:
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* Find a **callback that you can abuse** (potentially limited to \[\w\\.\_]).
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* If it's not limited and you can execute any JS, you could just abuse this as a regular XSS
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* Make the **victim open a page** controlled by the **attacker**
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* The **page will open itself** in a **different window** (the new window will have the object **`opener`** referencing the initial one)
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* The **initial page** will load the **page** where the **interesting DOM** is located.
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* The **second page** will load the **vulnerable page abusing the callback** and using the **`opener`** object to **access and execute some action in the initial page** (which now contains the interesting DOM).
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{% hint style="danger" %}
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Note that even if the initial page access to a new URL after having created the second page, the **`opener` object of the second page is still a valid reference to the first page in the new DOM**.
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Moreover, in order for the second page to be able to use the opener object **both pages must be in the same origin**. This is the reason why, in order to abuse this vulnerability, you need to find some sort of **XSS in the same origin**.
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{% endhint %}
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### Exploitation
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* You can use this form to **generate a PoC** to exploit this type of vulnerability: [https://www.someattack.com/Playground/SOMEGenerator](https://www.someattack.com/Playground/SOMEGenerator)
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* In order to find a DOM path to a HTML element with a click you can use this browser extension: [https://www.someattack.com/Playground/targeting\_tool](https://www.someattack.com/Playground/targeting\_tool)
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### Example
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* You can find a vulnerable example in [https://www.someattack.com/Playground/](https://www.someattack.com/Playground/)
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* Note that in this example the server is **generating javascript code** and **adding** it to the HTML based on the **content of the callback parameter:** `<script>opener.{callbacl_content}</script>` . Thats why in this example you don't need to indicate the use of `opener` explicitly.
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* Also check this CTF writeup: [https://ctftime.org/writeup/36068](https://ctftime.org/writeup/36068)
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## References
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* [https://conference.hitb.org/hitbsecconf2017ams/sessions/everybody-wants-some-advance-same-origin-method-execution/](https://conference.hitb.org/hitbsecconf2017ams/sessions/everybody-wants-some-advance-same-origin-method-execution/)
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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