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Archive for September, 2015

Windows CreateObjectTask SettingsSyncDiagnostics Privilege Escalation

Posted by deepcore under exploit (No Respond)

The MicrosoftWindowsShellCreateObjectTask 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. […]

Windows CreateObjectTask TileUserBroker Privlege Escalation

Posted by deepcore under exploit (No Respond)

The MicrosoftWindowsShellCreateObjectTask 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. […]

Farol SQL Injection

Posted by deepcore under exploit (No Respond)

Farol suffers from a remote SQL injection vulnerability.

Microsoft Office 2007 BIFFRecord Length Use-After-Free

Posted by deepcore under exploit (No Respond)

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.

Microsoft Office 2007 OLESSDirectyEntry.CreateTime Type Confusion

Posted by deepcore under exploit (No Respond)

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.

Windows User Mode Font Driver Thread Permissions EoP

Posted by deepcore under exploit (No Respond)

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.

Microsoft Office Excel 2007, 2010, 2013 Use-After-Free With BIFFRecord

Posted by deepcore under exploit (No Respond)

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

Microsoft Office 2007 OGL.dll ValidateBitmapInfo Bounds Check Failure

Posted by deepcore under exploit (No Respond)

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.

Windows NtUserGetClipboardAccessToken Token Leak Redux

Posted by deepcore under exploit (No Respond)

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.

Windows Task Scheduler DeleteExpiredTaskAfter File Deletion Privilege Escalation

Posted by deepcore under exploit (No Respond)

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.