305 matches found
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. Weāll look at the bugs, how they can be exploited to...
Apple OS X AppleIntelBDWGraphics Memory Corruption Privilege Escalation Vulnerability
This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the...
Apple Mac OSX - Kernel Exploitable Null Pointer Dereference in nvCommandQueue::GetHandleIndex in GeF
Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=784 The method nvCommandQueue::GetHandleIndex doesn't check whether this+0x5b8 is non-null before using it. We can race a call to this method this with another thread calling...
Apple Mac OSX Kernel - Null Pointer Dereference in AppleGraphicsDeviceControl
Apple Mac OSX Kernel - Null Pointer Dereference in AppleGraphicsDeviceControl / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=782 AppleGraphicsDeviceControlClient doesn't check that its pointer to its IOService at this+0xd8 is non-null before using it in all external methods. ...
Apple Mac OSX / iOS - Kernel UAF Racing getProperty on IOHDIXController and testNetBootMethod on IOH
Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=732 This is perhaps a more interesting UaF than just racing testNetBootMethod calls as there looks to be a path to getting free'd memory disclosed back to userspace. Although the...
Apple Mac OSX Kernel - NULL Dereference in IOAccelSharedUserClient2::page_off_resource
/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=778 IOAccelerator external method IOAccelSharedUserClient2::pageoffresource uses the pointer at this+0x100 without checking if it's NULL. A series of dereferences from this pointer lead to trivial RIP control. We can race two...
Apple TV < 9.1 Multiple Vulnerabilities
Binary data 9334.prm...
Apple OS X IOKit CoreCaptureResponder Privilege Escalation Vulnerability
This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The specific flaw exists within CoreCaptureResponder in IOKit. The issue lies wi...
Apple Mac OSX Kernel - Code Execution Due to Lack of Bounds Checking in AppleUSBPipe::Abort
/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=728 External Method 36 of IOUSBInterfaceUserClient is AbortStreamPipe. It takes two scalar inputs and uses the second one as an array index to read a pointer to a C++ object without checking the bounds then calls a virtual method...
Apple Mac OSX - Kernel AppleKeyStore Use-After-Free
Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=710 The AppleKeyStore userclient uses an IOCommandGate to serialize access to its userclient methods, however by racing two threads, one of which closes the userclient which frees...
Apple Mac OSX - Kernel Code Execution Due to Lack of Bounds Checking in AppleUSBPipe::Abort
Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=728 External Method 36 of IOUSBInterfaceUserClient is AbortStreamPipe. It takes two scalar inputs and uses the second one as an array index to read a pointer to a C++ object withou...
Apple Mac OSX Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in Nvidia Geforce Driver
/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=709 nvDevice::ReleaseDeviceTexture is external method 0x10a of userclient 5 of the geforce IOAccelerator. It takes a single uint argument text:000000000001BCD2 mov r14d, esi ... text:000000000001BD08 and r14d, 7FFFFFFFh -- clear...
Apple Mac OSX Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in Nvidia Geforce Driver
Apple Mac OSX Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in Nvidia Geforce Driver / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=709 nvDevice::ReleaseDeviceTexture is external method 0x10a of userclient 5 of the geforce IOAccelerator. ...
The vulnerabilities in operating systems such as Mac OS X and iOS allow attackers to trigger service failures or increase their privileges.
The vulnerability of the IOKit component in Mac OS X and iOS operating systems arises due to buffer overflow. Exploiting this vulnerability can allow an attacker to increase their privileges or cause a service failure memory corruption...
CVE-2016-1720
IOKit in Apple iOS before 9.2.1, OS X before 10.11.3, and tvOS before 9.1.1 allows local users to gain privileges or cause a denial of service memory corruption via unspecified vectors...
CVE-2016-1720
IOKit in Apple iOS before 9.2.1, OS X before 10.11.3, and tvOS before 9.1.1 allows local users to gain privileges or cause a denial of service memory corruption via unspecified vectors...
Memory corruption
IOKit in Apple iOS before 9.2.1, OS X before 10.11.3, and tvOS before 9.1.1 allows local users to gain privileges or cause a denial of service memory corruption via unspecified vectors...
CVE-2016-1720
IOKit in Apple iOS before 9.2.1, OS X before 10.11.3, and tvOS before 9.1.1 allows local users to gain privileges or cause a denial of service memory corruption via unspecified vectors...
CVE-2016-1720
Summary (CVE-2016-1720) : A memory corruption vulnerability in Appleās IOKit affects iOS < 9.2.1, OS X < 10.11.3, and tvOS
Apple Mac OSX iOS - Multiple Kernel Uninitialized Variable Bugs Leading to Code Execution Vulnerabilities
Apple Mac OSX iOS - Multiple Kernel Uninitialized Variable Bugs Leading to Code Execution Vulnerabilities Source: https://code.google.com/p/google-security-research/issues/detail?id=618 The ool variations of the IOKit device.defs functions all incorrectly deal with error conditions. If you run th...