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WebKit JSC AbstractValue::set Use-After-Free
Posted Dec 27, 2018
Authored by Google Security Research, lokihardt

WebKit JSC suffers from a use-after-free vulnerability that can be used to bypass write barriers.

tags | exploit
advisories | CVE-2018-4443
SHA-256 | e2420c7cbbee92aac272000675d9ecac14ee6bdf6f20e39b27fbf5fba2af6409

Related Files

WebKit JSC JSArray::shiftCountWithArrayStorage Out-Of-Band Read / Write
Posted Dec 27, 2018
Authored by Google Security Research, lokihardt

WebKit JSC suffers from out-of-bounds read and write vulnerabilities in JSArray::shiftCountWithArrayStorage.

tags | exploit, vulnerability
advisories | CVE-2018-4441
SHA-256 | c4b1f3aa03b2cfee8c12ef1dd3ea676dd2720b30657ed4e85a3e0f70a77f9a7c
WebKit JSC BytecodeGenerator::emitGetByVal Incorrect Optimization
Posted Sep 12, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from an incorrect optimization in BytecodeGenerator::emitGetByVal.

tags | exploit
advisories | CVE-2017-7061
SHA-256 | 9220b5c0f6c932addd44fe7106dc05e5e8eeaef81b30f43920c0a1f5cdb633c7
WebKit JSC ArgumentsEliminationPhase::transform Incorrect LoadVarargs Handling
Posted Jul 25, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from incorrect LoadVarargs handling in ArgumentsEliminationPhase::transform.

tags | exploit
advisories | CVE-2017-7056
SHA-256 | edbf79d7990323abaf4336e6c20ceed747d95e780f4b02cba2012766bb547326
WebKit JSC ObjectPatternNode::appendEntry Use-After-Free
Posted Jul 25, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from an ObjectPatternNode::appendEntry stack use-after-free.

tags | advisory
SHA-256 | 33b5aee90d54dea0a033cb5bc2360e1678605183705f19824210b8a033b4dff6
WebKit JSC arrayProtoFuncSplice Uninitiailzed Memory Reference
Posted Jul 25, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from an uninitialized memory reference in arrayProtoFuncSplice.

tags | exploit
SHA-256 | ce1c4741e5611858900581d7df034b8e7542529547943c3348da1dbda9904227
WebKit JSC Intl.getCanonicalLocales Heap Buffer Overflow
Posted Jun 15, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from a heap buffer overflow vulnerability in Intl.getCanonicalLocales.

tags | exploit, overflow
advisories | CVE-2017-6984
SHA-256 | 3ce6984b8d5f3496724b9fd295322f1da9540728a002a8b0b7dee8bd77113aed
WebKit JSC JSGlobalObject::haveABadTime Type Confusion
Posted Jun 15, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from a JSGlobalObject::haveABadTime type confusion vulnerability.

tags | exploit
advisories | CVE-2017-7005
SHA-256 | 1f481998f2bb5916dc1ba80de838274187ae1882f6a50f6e4569df9b5d0d75ba
WebKit JSC Jit Optimization Check Failure
Posted Jun 15, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from a JIT optimization check failure in IntegerCheckCombiningPhase::handleBlock.

tags | exploit
advisories | CVE-2017-2547
SHA-256 | 5f12e99ad1584896ed16974eedb9cb9acb232c0a88d9e26de9c971d18be09ec8
WebKit JSC emitPutDerivedConstructorToArrowFunctionContextScope Incorrect Check
Posted Jun 1, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from an incorrect check in emitPutDerivedConstructorToArrowFunctionContextScope.

tags | exploit
advisories | CVE-2017-2531
SHA-256 | a896a4670ad6e45a86257f2de8b28d8691ca919a2a4457017498eeb0b85ae85e
Windows Task Scheduler DeleteExpiredTaskAfter File Deletion Privilege Escalation
Posted Sep 18, 2015
Authored by Google Security Research, forshaw

The Task Scheduler can be made to delete a task after it's trigger has expired. No check is made to ensure the task file is not a junction which allows arbitrary files to be deleted by the system user leading to EoP.

tags | exploit, arbitrary
systems | linux
advisories | CVE-2015-2525
SHA-256 | c30785bf661d0d66daa78abe61a94c360587d6e66ae875cfc5a81dc4ec54b02e
Windows NtUserGetClipboardAccessToken Token Leak Redux
Posted Sep 18, 2015
Authored by Google Security Research, forshaw

The NtUserGetClipboardAccessToken win32k system call exposes the access token of the last user to lower-privileged users. It can also be used to open an anonymous impersonation thread token which normally OpenThreadToken shouldn't be able to do. This is a bypass of the fix for CVE-2015-0078.

tags | exploit
systems | linux
advisories | CVE-2015-2527
SHA-256 | 9bcf7274e363f1dc579d9ed68048a01019d56cc2f841f1a4a04c182389196296
Microsoft Office 2007 OGL.dll ValidateBitmapInfo Bounds Check Failure
Posted Sep 18, 2015
Authored by Google Security Research, scvitti

A bounds check crash was observed in Microsoft Office 2007 Excel with Microsoft Office File Validation Add-In disabled and Application Verifier enabled for testing and reproduction. This bug did not reproduce in Office 2010 or 2013.

tags | exploit
systems | linux
advisories | CVE-2015-2510
SHA-256 | 05a60e7019067851141f1787a5bbda75454773b40b9acf97e8b754f2fad758fd
Microsoft Office Excel 2007, 2010, 2013 Use-After-Free With BIFFRecord
Posted Sep 18, 2015
Authored by Google Security Research, scvitti

Microsoft Excel 2007 running on Windows 2003 suffers from a use-after-free vulnerability.

tags | exploit
systems | linux, windows
advisories | CVE-2015-2523
SHA-256 | 460bd27af88f7165a795d698b85d2e4cd8c83732200f70dc5c84e7b8e4818f79
Windows User Mode Font Driver Thread Permissions EoP
Posted Sep 18, 2015
Authored by Google Security Research, forshaw

The host process for the UMFD runs as a normal user but with a heavily restrictive process DACL. It's possible execute arbitrary code within the context of the process because it's possible to access the processes threads leading to local EoP.

tags | exploit, arbitrary, local
systems | linux
advisories | CVE-2015-2508
SHA-256 | f0ec77ee8811de8feb9edad30b69fae9734672773f9e5a37d08fdba2317cebd5
Microsoft Office 2007 BIFFRecord Length Use-After-Free
Posted Sep 18, 2015
Authored by Google Security Research, scvitti

A use-after-free crash was observed in Microsoft Office 2007 with Microsoft Office File Validation Add-In disabled and Application Verifier enabled for testing and reproduction. This bug did not reproduce in Office 2010 or 2013.

tags | exploit
systems | linux
advisories | CVE-2015-2520
SHA-256 | 3b2e620089c3777eb2d36942713f33cf68f9865e894dbaee83bdbdb3af57385c
Microsoft Office 2007 OLESSDirectyEntry.CreateTime Type Confusion
Posted Sep 18, 2015
Authored by Google Security Research, scvitti

A type confusion crash was observed in Microsoft Office 2007 with Microsoft Office File Validation Add-In disabled and Application Verifier enabled for testing and reproduction. This bug did not reproduce in Office 2010 or 2013.

tags | exploit
systems | linux
advisories | CVE-2015-2521
SHA-256 | 247823ed9395d266e8674965a149848a04a5b7380aa2bf3723839d71d6ca65a6
Windows CreateObjectTask TileUserBroker Privlege Escalation
Posted Sep 18, 2015
Authored by Google Security Research, forshaw

The Microsoft\Windows\Shell\CreateObjectTask initializes a shell32 based ICreateObject COM server as local system. This is marked as being accessible from a normal user account so once created we can attach to it. The server only has one method, CreateObject which checks the CLSID against a list of known safe classes before allowing it to be instantiated. One of these classes is allows a user to set their account picture for the logon screen.

tags | exploit, shell, local
systems | linux, windows
advisories | CVE-2015-2528
SHA-256 | 6a43091589e97afa78001dc6e8f0c4e88aed1de975f8578e7b0706c3c45901f3
Windows CreateObjectTask SettingsSyncDiagnostics Privilege Escalation
Posted Sep 18, 2015
Authored by Google Security Research, forshaw

The Microsoft\Windows\Shell\CreateObjectTask initializes a shell32 based ICreateObject COM server as local system. This is marked as being accessible from a normal user account so once created we can attach to it. The server only has one method, CreateObject which checks the CLSID against a list of known safe classes before allowing it to be instantiated. One of these classes is a diagnostic class for setting synchronization implemented in SettingSync.dll.

tags | exploit, shell, local
systems | linux, windows
advisories | CVE-2015-2524
SHA-256 | 6aef4dd16b7085d61fe94cd118f3ece652f9cd33df0722b63a4bf31f53557554
OS X IOKit Kernel Memory Corruption
Posted Sep 18, 2015
Authored by Google Security Research, Ian Beer

An OS X IOKit kernel memory corruption issue occurs due to a bad bzero in IOBluetoothDevice.

tags | exploit, kernel
systems | linux, apple, osx
advisories | CVE-2014-8836
SHA-256 | f3d2f3b8051f90b86f0cfd263f09f98a7e0e04c1e1fcff20c13e3ca8f318052c
Adobe Reader X And XI For Windows Out-of-bounds Write In CoolType.dll
Posted Sep 18, 2015
Authored by Google Security Research, mjurczyk

Adobe Reader X and XI for windows suffers from an out-of-bounds write in CoolType.dll.

tags | exploit
systems | linux, windows
advisories | CVE-2014-9160
SHA-256 | 94d511f0b5c52532ba8c4998f0ae71bb9ef6d1788cd193c33ea257be138b259f
Windows Type-Confusion / Memory Corruption
Posted Sep 14, 2015
Authored by Google Security Research, matttait

The Windows Kernel is subject to two related kernel-mode type-confusion vulnerabilities inside win32k!xxxRemoteReconnect. In both cases, a user-mode parameter passed to the syscall is incorrectly resolved to its underlying kernel representation via ObReferenceObjectByHandle passing NULL as the "ObType" field (rather than *IoFileTypeObject and *IoDeviceTypeObject respectively). Because the type is not checked, if a handle of a type other than a HANDLE to a file and a device are passed, the kernel incorrectly uses the underlying representation of the object as a PFILE_OBJECT and a PDEVICE_OBJECT, causing memory corruption in the kernel.

tags | advisory, kernel, vulnerability
systems | linux, windows
SHA-256 | 1fc87129199a0c6cd9e6a9fa146cc6e891c7331266896538d14fc884c57013ba
OS X Suid Privilege Escalation
Posted Sep 14, 2015
Authored by Google Security Research, Ian Beer

The Install.framework runner suid root binary does not correctly account for the fact that Distributed Objects can be connected to by multiple clients at the same time. By connecting two proxy objects to an IFInstallRunner and calling [IFInstallRunner makeReceiptDirAt:asRoot:] in the first and passing a custom object as the directory name we can get a callback to our code just after the makeReceiptDirAt code has called seteuid(0);setguid(0) to regain privs. Since BSD priviledges are per-process this means that our other proxy object will now have euid 0 without having to provide an authorization reference. In this second proxy we can then just call runTaskSecurely and get a root shell before returning from the first proxy's callback function which will then drop privs.

tags | exploit, shell, root
systems | linux, bsd
advisories | CVE-2015-5754
SHA-256 | 1fd4f2bf985f7460d71d17680841dc5c059fe7c05b9a7ac1a776291868ff74e3
OS X Privilege Escalation
Posted Sep 14, 2015
Authored by Google Security Research, Ian Beer

The private Install.framework has a few helper executables in /System/Library/PrivateFrameworks/Install.framework/Resources, one of which is suid root and exploitable.

tags | exploit, root
systems | linux
advisories | CVE-2015-3704
SHA-256 | a34aa2485110ffeff9b63cf7063d71e3ac6548549f001e7517073b7f1ffaa5ca
OS X Install.framework Suid Root Binary
Posted Sep 14, 2015
Authored by Google Security Research, Ian Beer

Install.framework has a suid root binary at /System/Library/PrivateFrameworks/Install.framework/Resources/runner that allows for arbitrary mkdir, unlink, and chown.

tags | exploit, arbitrary, root
systems | linux
advisories | CVE-2015-5784
SHA-256 | 4b9ea14e8540ddbdec18fe305074224119369e420b4ed663a1f2bac393fa7f15
Windows win32k!NtUserSetInformationThread Type Confusion
Posted Sep 9, 2015
Authored by Google Security Research, matttait

The Windows Kernel is subject to a kernel-mode type-confusion vulnerability inside win32k!NtUserSetInformationThread due to referencing a user-mode handle via ObReferenceObjectByHandle with a "NULL" type specified (it should instead be using *LpcPortObjectType to protect against this vulnerability). This vulnerability can be triggered from inside CSRSS via the syscall win32k!NtUserSetInformationThread with ThreadInformationClass set to "UserThreadCsrApiPort" and the parameter of the syscall set to a HANDLE that is not an LPC object.

tags | advisory, kernel
systems | linux, windows
SHA-256 | f08ca467d2241babc70e51da65057abb65b9ecf85249b35405cfc513910c45d6
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