EUVD-2015-5828

Malware in sbrugna...

task_t considered harmful

Posted by Ian Beer, Project Zero This post discusses a design issue at the core of the XNU kernel which powers iOS and MacOS. Apple have shipped two iterations of mitigations followed yesterday by a large refactor in MacOS 10.12.1/iOS 10.1. We’ll look at the bugs, how they can be exploited to...

Race you to the kernel!

Posted by Ian Beer of Google Project Zero The OS X and iOS kernel code responsible for loading a setuid root binary invalidates the old task port after first swapping the new virtual memory map pointer into the old task object, leaving a short race window where you can manipulate the memory of an...

Design/Logic Flaw

The processorsettasks API implementation in Apple iOS before 9 allows local users to bypass an entitlement protection mechanism and obtain access to the task ports of arbitrary processes by leveraging root privileges...