hacktricks/macos-hardening/macos-security-and-privilege-escalation/README.md
2024-09-13 09:39:20 +00:00

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# macOS Security & Privilege Escalation
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## Basic MacOS
If you are not familiar with macOS, you should start learning the basics of macOS:
* Special macOS **files & permissions:**
{% content-ref url="macos-files-folders-and-binaries/" %}
[macos-files-folders-and-binaries](macos-files-folders-and-binaries/)
{% endcontent-ref %}
* Common macOS **users**
{% content-ref url="macos-users.md" %}
[macos-users.md](macos-users.md)
{% endcontent-ref %}
* **AppleFS**
{% content-ref url="macos-applefs.md" %}
[macos-applefs.md](macos-applefs.md)
{% endcontent-ref %}
* The **architecture** of the k**ernel**
{% content-ref url="mac-os-architecture/" %}
[mac-os-architecture](mac-os-architecture/)
{% endcontent-ref %}
* Common macOS n**etwork services & protocols**
{% content-ref url="macos-protocols.md" %}
[macos-protocols.md](macos-protocols.md)
{% endcontent-ref %}
* **Opensource** macOS: [https://opensource.apple.com/](https://opensource.apple.com/)
* To download a `tar.gz` change a URL such as [https://opensource.apple.com/**source**/dyld/](https://opensource.apple.com/source/dyld/) to [https://opensource.apple.com/**tarballs**/dyld/**dyld-852.2.tar.gz**](https://opensource.apple.com/tarballs/dyld/dyld-852.2.tar.gz)
### MacOS MDM
In companies **macOS** systems are highly probably going to be **managed with a MDM**. Therefore, from the perspective of an attacker is interesting to know **how that works**:
{% content-ref url="../macos-red-teaming/macos-mdm/" %}
[macos-mdm](../macos-red-teaming/macos-mdm/)
{% endcontent-ref %}
### MacOS - Inspecting, Debugging and Fuzzing
{% content-ref url="macos-apps-inspecting-debugging-and-fuzzing/" %}
[macos-apps-inspecting-debugging-and-fuzzing](macos-apps-inspecting-debugging-and-fuzzing/)
{% endcontent-ref %}
## MacOS Security Protections
{% content-ref url="macos-security-protections/" %}
[macos-security-protections](macos-security-protections/)
{% endcontent-ref %}
## Attack Surface
### File Permissions
If a **process running as root writes** a file that can be controlled by a user, the user could abuse this to **escalate privileges**.\
This could occur in the following situations:
* File used was already created by a user (owned by the user)
* File used is writable by the user because of a group
* File used is inside a directory owned by the user (the user could create the file)
* File used is inside a directory owned by root but user has write access over it because of a group (the user could create the file)
Being able to **create a file** that is going to be **used by root**, allows a user to **take advantage of its content** or even create **symlinks/hardlinks** to point it to another place.
For this kind of vulnerabilities don't forget to **check vulnerable `.pkg` installers**:
{% content-ref url="macos-files-folders-and-binaries/macos-installers-abuse.md" %}
[macos-installers-abuse.md](macos-files-folders-and-binaries/macos-installers-abuse.md)
{% endcontent-ref %}
### File Extension & URL scheme app handlers
Weird apps registered by file extensions could be abused and different applications can be register to open specific protocols
{% content-ref url="macos-file-extension-apps.md" %}
[macos-file-extension-apps.md](macos-file-extension-apps.md)
{% endcontent-ref %}
## macOS TCC / SIP Privilege Escalation
In macOS **applications and binaries can have permissions** to access folders or settings that make them more privileged than others.
Therefore, an attacker that wants to successfully compromise a macOS machine will need to **escalate its TCC privileges** (or even **bypass SIP**, depending on his needs).
These privileges are usually given in the form of **entitlements** the application is signed with, or the application might requested some accesses and after the **user approving them** they can be found in the **TCC databases**. Another way a process can obtain these privileges is by being a **child of a process** with those **privileges** as they are usually **inherited**.
Follow these links to find different was to [**escalate privileges in TCC**](macos-security-protections/macos-tcc/#tcc-privesc-and-bypasses), to [**bypass TCC**](macos-security-protections/macos-tcc/macos-tcc-bypasses/) and how in the past [**SIP has been bypassed**](macos-security-protections/macos-sip.md#sip-bypasses).
## macOS Traditional Privilege Escalation
Of course from a red teams perspective you should be also interested in escalating to root. Check the following post for some hints:
{% content-ref url="macos-privilege-escalation.md" %}
[macos-privilege-escalation.md](macos-privilege-escalation.md)
{% endcontent-ref %}
## macOS Compliance
* [https://github.com/usnistgov/macos\_security](https://github.com/usnistgov/macos\_security)
## References
* [**OS X Incident Response: Scripting and Analysis**](https://www.amazon.com/OS-Incident-Response-Scripting-Analysis-ebook/dp/B01FHOHHVS)
* [**https://taomm.org/vol1/analysis.html**](https://taomm.org/vol1/analysis.html)
* [**https://github.com/NicolasGrimonpont/Cheatsheet**](https://github.com/NicolasGrimonpont/Cheatsheet)
* [**https://assets.sentinelone.com/c/sentinal-one-mac-os-?x=FvGtLJ**](https://assets.sentinelone.com/c/sentinal-one-mac-os-?x=FvGtLJ)
* [**https://www.youtube.com/watch?v=vMGiplQtjTY**](https://www.youtube.com/watch?v=vMGiplQtjTY)
<figure><img src="../../.gitbook/assets/image (380).png" alt=""><figcaption></figcaption></figure>
Join [**HackenProof Discord**](https://discord.com/invite/N3FrSbmwdy) server to communicate with experienced hackers and bug bounty hunters!
**Hacking Insights**\
Engage with content that delves into the thrill and challenges of hacking
**Real-Time Hack News**\
Keep up-to-date with fast-paced hacking world through real-time news and insights
**Latest Announcements**\
Stay informed with the newest bug bounties launching and crucial platform updates
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<details>
<summary>Support HackTricks</summary>
* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
* **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)**.**
* **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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