Apple iOS/macOS - Sandbox Escape due to Trusted Length Field in Shared Memory used by HID Event Subsystem

iohideventsystem is a MIG service which provides proxy access to various HID devices for untrusted clients. On iOS it's hosted by backboardd and on MacOS by hidd. The actual implementation is in IOKit.framework. I, and also pangu jailbreak team, had previously found a few bugs in the kernel...

Apple iOSmacOS - Sandbox Escape due to Trusted Length Field in Shared Memory used by HID Event Subsystem

Apple iOSmacOS - Sandbox Escape due to Trusted Length Field in Shared Memory used by HID Event Subsystem iohideventsystem is a MIG service which provides proxy access to various HID devices for untrusted clients. On iOS it's hosted by backboardd and on MacOS by hidd. The actual implementation is ...

macOS / iOS - ReportCrash mach port Replacement due to Failure to Respect MIG Ownership Rules

Exploit for multiple platform in category dos / poc / ReportCrash is the daemon responsible for making crash dumps of crashing userspace processes. Most processes can talk to ReportCrash via their exception ports either task or host level. You would normally never send a message yourself to...

macOS 10.13.2 - Double mach_port_deallocate in kextd due to Failure to Comply with MIG Ownership Rul

Exploit for macOS platform in category dos / poc Here's a kextd method exposed via MIG com.apple.KernelExtensionServer kernreturnt kextmanagerunlockkextload machportt server, machportt client kernreturnt migresult = KERNFAILURE; if gClientUID != 0 OSKextLog/ kext / NULL, kOSKextLogErrorLevel |...

Apple macOSiOS - ReportCrash mach port Replacement due to Failure to Respect MIG Ownership Rules

Apple macOSiOS - ReportCrash mach port Replacement due to Failure to Respect MIG Ownership Rules / ReportCrash is the daemon responsible for making crash dumps of crashing userspace processes. Most processes can talk to ReportCrash via their exception ports either task or host level. You would...

Apple macOS 10.13.2 - Double mach_port_deallocate in kextd due to Failure to Comply with MIG Ownership Rules

Apple macOS 10.13.2 - Double machportdeallocate in kextd due to Failure to Comply with MIG Ownership Rules Here's a kextd method exposed via MIG com.apple.KernelExtensionServer kernreturnt kextmanagerunlockkextload machportt server, machportt client kernreturnt migresult = KERNFAILURE; if...

Apple macOS 10.13.2 - Double mach_port_deallocate in kextd due to Failure to Comply with MIG Ownership Rules

Here's a kextd method exposed via MIG com.apple.KernelExtensionServer kernreturnt kextmanagerunlockkextload machportt server, machportt client kernreturnt migresult = KERNFAILURE; if gClientUID != 0 OSKextLog/ kext / NULL, kOSKextLogErrorLevel | kOSKextLogIPCFlag, "Non-root kextutil doesn't need ...

Apple macOS/iOS - ReportCrash mach port Replacement due to Failure to Respect MIG Ownership Rules

/ ReportCrash is the daemon responsible for making crash dumps of crashing userspace processes. Most processes can talk to ReportCrash via their exception ports either task or host level. You would normally never send a message yourself to ReportCrash but the kernel would do it on your behalf whe...

iOS/MacOS kernel double free due to IOSurfaceRootUserClient not respecting MIG ownership rules(CVE-2017-13861)

I have previously detailed the lifetime management paradigms in MIG in the writeups for: CVE-2016-7612 https://bugs.chromium.org/p/project-zero/issues/detail?id=926 and CVE-2016-7633 https://bugs.chromium.org/p/project-zero/issues/detail?id=954 If a MIG method returns KERNSUCCESS it means that th...

Apple macOS/iOS - Kernel Double Free due to IOSurfaceRootUserClient not Respecting MIG Ownership Rules

I have previously detailed the lifetime management paradigms in MIG in the writeups for: CVE-2016-7612 https://bugs.chromium.org/p/project-zero/issues/detail?id=926 and CVE-2016-7633 https://bugs.chromium.org/p/project-zero/issues/detail?id=954 If a MIG method returns KERNSUCCESS it means that th...

Apple macOSiOS - Kernel Double Free due to IOSurfaceRootUserClient not Respecting MIG Ownership Rules

Apple macOSiOS - Kernel Double Free due to IOSurfaceRootUserClient not Respecting MIG Ownership Rules I have previously detailed the lifetime management paradigms in MIG in the writeups for: CVE-2016-7612 https://bugs.chromium.org/p/project-zero/issues/detail?id=926 and CVE-2016-7633...

Apple Mac OS X Multiple Vulnerabilities-04 (Feb 2017)

Apple Mac OS X is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Code injection

An issue was discovered in certain Apple products. iOS before 10.1 is affected. macOS before 10.12.1 is affected. tvOS before 10.0.1 is affected. watchOS before 3.1 is affected. The issue involves the "Kernel" component. It allows local users to execute arbitrary code in a privileged context or...

macOS 10.12.1 / iOS Kernel - IOService::matchPassive Use-After-Free Exploit

Exploit for multiple platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=973 IOService::matchPassive is called when trying to match a request dictionary against a candidate IOService. We can call this function on a controlled IOService with a...

Apple iOS < 10.2 Multiple Vulnerabilities

Binary data 9847.prm...

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...

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

Apple macOS 10.12 - Double vmdeallocate in Userspace MIG Code Use-After-Free / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=954 Proofs of Concept: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40954.zip Userspace MIG services often use...

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 - 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 Kernel - ipc_port_t 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 and iprelease atomically increment and decrement the 32 bit ioreferences field. Unlike OSObjects, ipreference will allow the...