MacOS Kernel 10.12 - Double vm_deallocate in Userspace MIG Code Use-After-Free Exploit

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=954 Proofs of Concept: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40954.zip Userspace MIG services often use machmsgserver or...

MacOS Kernel 10.12.1 / iOS < 10.2 - syslogd Arbitrary Port Replacement Exploit

Exploit for multiple platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=977 syslogd running as root hosts the com.apple.system.logger mach service. It's part of the system.sb sandbox profile and so reachable from a lot of sandboxed contexts. Here's ...

MacOS Kernel < 10.12.2 / iOS < 10.2 - Broken Kernel Mach Port Name uref Handling Privileged Po

Exploit for multiple platform in category local exploits / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=959 Proofs of Concept: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40957.zip When sending and receiving mach messages from userspa...

Apple macOS 10.12.2 iOS 10.2 Kernel - ipc_port_t Reference Count Leak Due to Incorrect externalMethod Overrides Use-After-Free

Apple macOS 10.12.2 iOS 10.2 Kernel - ipcportt Reference Count Leak Due to Incorrect externalMethod Overrides Use-After-Free Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=926 mach ports are really struct ipcportt's in the kernel; this is a reference-counted object, ipreference...

Apple macOS 10.12.2 iOS 10.2 - Broken Kernel Mach Port Name uref Handling Privileged Port Name Replacement Privilege Escalation

Apple macOS 10.12.2 iOS 10.2 - Broken Kernel Mach Port Name uref Handling Privileged Port Name Replacement Privilege Escalation / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=959 Proofs of Concept:...

Apple macOS 10.12.1 iOS 10.2 - syslogd Arbitrary Port Replacement

Apple macOS 10.12.1 iOS 10.2 - syslogd Arbitrary Port Replacement / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=977 syslogd running as root hosts the com.apple.system.logger mach service. It's part of the system.sb sandbox profile and so reachable from a lot of sandboxed...

Apple macOS 10.12.2 iOS 10.2 - _kernelrpc_mach_port_insert_right_trap Kernel Reference Count Leak Use-After-Free

Apple macOS 10.12.2 iOS 10.2 - kernelrpcmachportinsertrighttrap Kernel Reference Count Leak Use-After-Free / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=941 Proofs of Concept: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40956.zip The...

Apple macOS 10.12.1 iOS 10.2 - powerd Arbitrary Port Replacement

Apple macOS 10.12.1 iOS 10.2 - powerd Arbitrary Port Replacement / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=976 powerd running as root hosts the com.apple.PowerManagement.control mach service. It checks in with launchd to get a server port and then wraps that in a CFPort:...

Apple macOS 10.12 - Double vm_deallocate in Userspace MIG Code Use-After-Free

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=954 Proofs of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40954.zip Userspace MIG services often use machmsgserver or machmsgserveronce to implent an RPC server. These two functions a...

Apple macOS < 10.12.2 / iOS < 10.2 - Broken Kernel Mach Port Name uref Handling Privileged Port Name Replacement Privilege Escalation

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=959 Proofs of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40957.zip When sending and receiving mach messages from userspace there are two important kernel objects; ipcentry and...

Apple macOS 10.12.1 / iOS < 10.2 - syslogd Arbitrary Port Replacement

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=977 syslogd running as root hosts the com.apple.system.logger mach service. It's part of the system.sb sandbox profile and so reachable from a lot of sandboxed contexts. Here's a snippet from its mach message handling loop...

Apple OS X Kernel - IOBluetoothFamily.kext Use-After-Free

Apple OS X Kernel - IOBluetoothFamily.kext Use-After-Free / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=830 When you create a new IOKit user client from userspace you call: kernreturnt IOServiceOpen ioservicet service, taskportt owningTask, uint32t type, ioconnectt connect ;...

Apple OS XiOS - mach_ports_register Multiple Memory Safety s

Apple OS XiOS - machportsregister Multiple Memory Safety s Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=882 machportsregister is a kernel task port MIG method. It's defined in MIG like this: routine machportsregister targettask : taskt; initportset : machportarrayt = ^array o...

Apple macOS 10.12 - task_t Local Privilege Escalation

Apple macOS 10.12 - taskt Local Privilege Escalation Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=837 TL;DR you cannot hold or use a task struct pointer and expect the euid of that task to stay the same. Many many places in the kernel do this and there are a great many very...

Apple macOS 10.12 - 'task_t' Local Privilege Escalation

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=837 TL;DR you cannot hold or use a task struct pointer and expect the euid of that task to stay the same. Many many places in the kernel do this and there are a great many very exploitable bugs as a result. taskt is just a typedef...

System Boot Input Validation Vulnerability in Multiple Apple Products

Apple iOS is an operating system developed for mobile devices; tvOS is an operating system for smart TVs; watchOS is an operating system for smart watches; and System Boot is one of the system boot components. An input validation vulnerability exists in the MIG generated code of the System Boot i...

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...

CVE-2014-9789

The 1 alloc and 2 free APIs in arch/arm/mach-msm/qdsp6v2/msmaudioion.c in the Qualcomm components in Android before 2016-07-05 on Nexus 5 devices do not validate parameters, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28749392 and Qualcomm interna...

Mach Race OSX - Local Privilege Escalation

Mach Race OSX - Local Privilege Escalation Source: https://github.com/gdbinit/machrace Mach Race OS X Local Privilege Escalation Exploit c fG! 2015, 2016, [email protected] - https://reverse.put.as A SUID, SIP, and binary entitlements universal OS X exploit CVE-2016-1757. Usage against a SUID binar...

Mach Race OSX - Local Privilege Escalation

Source: https://github.com/gdbinit/machrace Mach Race OS X Local Privilege Escalation Exploit c fG! 2015, 2016, [email protected] - https://reverse.put.as A SUID, SIP, and binary entitlements universal OS X exploit CVE-2016-1757. Usage against a SUID binary: ./machraceserver /bin/ps compatmode for ...