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CVE-2015-2527

Status Candidate

Overview

The process-initialization implementation in win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 does not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

Related Files

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
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