hacktricks/macos-hardening/macos-security-and-privilege-escalation/macos-sandbox

macOS Sandbox

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Basic Information

Start Sandbox

Processes are not born sandboxed on macOS: unlike iOS, where the sandbox is applied by the kernel before the first instruction of a program executes, on macOS a process must elect to place itself into the sandbox.

Processes are automatically Sandboxed from userland when they start if they have the entitlement: com.apple.security.app-sandbox. For a detailed explanation of this process check:

{% content-ref url="macos-sandbox-debug-and-bypass.md" %} macos-sandbox-debug-and-bypass.md {% endcontent-ref %}

Check PID Privileges

According to this, the sandbox_check (it's a __mac_syscall), can check if an operation is allowed or not by the sandbox in a certain PID.

The tool sbtool can check if a PID can perform a certain action:

sbtool <pid> mach #Check mac-ports (got from launchd with an api)
sbtool <pid> file /tmp #Check file access
sbtool <pid> inspect #Gives you an explaination of the sandbox profile
sbtool <pid> all

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• Share your hacking tricks by submitting PRs to the hacktricks repo and hacktricks-cloud repo.