Thus, it is possible to call any exposed functions over XPC unauthorized. Usually, this function performs the authorization of the caller-however, the function of the does not implement any authorization checks. This function is used to perform the initial steps for establishing an XPC connection. When accepting XPC calls the HelperTool listener:shouldAcceptNewConnection respectively (BOOL)listener:(NSXPCListener *)listener shouldAcceptNewConnection:(NSXPCConnection *)connection function by default. Added with the sleek design of the OS, this Mac FTP. When installing the Forklift, a new helper called for Mac OS X is automatically installed to the /Library/PrivilegedHelperTools/ directory.Īnalyzing this helper, which handles XPC messages, resulted in different ways of escalating privileges from user to root on Mac OS X. Forklift has a dual-pane view similar to FileZilla but has a more modern and smooth User Interface (UI). Pallet jacks are the most basic type of a forklift as well as are meant to relocate pallets within a storehouse. It is well known under macOS power users.Īs part of my investigation I identified vulnerabilities in Forklift allowing local privilege escalation.īy now all vulnerabilities are fixed by the vendor I can release the details: įorklift 3.3.9 Local Privilege Escalation CVE-2020-15349 A pallet jack, additionally known as a pallet vehicle, pallet pump, pump vehicle, scooter, dog, or jigger is a device utilized to raise as well as move pallets. Thus, it is quite a nice attack surface to search for Local Privilege Escalations.įorklift is an advanced dual pane file manager for macOS. These helpers are used as an interface for applications to perform privileged operations on the system. I have started to have a look at my local installed helpers on macOS.
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