Windows win32k.sys TTF Font Processing win32k!fsc_RemoveDups Out-of-Bounds Pool Memory Access

Source: https://code.google.com/p/google-security-research/issues/detail?id=401&can=1 We have encountered a Windows kernel crash in the win32k!fscRemoveDups function while processing corrupted TTF font files, such as: --- PAGEFAULTINNONPAGEDAREA 50 Invalid system memory was referenced. This canno...

Microsoft Windows Kernel - win32k!vSolidFillRect Buffer Overflow (MS15-061)

Microsoft Windows Kernel - win32k!vSolidFillRect Buffer Overflow MS15-061 Source: https://code.google.com/p/google-security-research/issues/detail?id=313 The PoC triggers a pool buffer overflow in win32k!vSolidFillRect. ​When using Special Pool we get the crash immediately on the overwrite. Witho...

Microsoft Windows Kernel - bGetRealizedBrush Use-After-Free (MS15-097)

Microsoft Windows Kernel - bGetRealizedBrush Use-After-Free MS15-097 Source: https://code.google.com/p/google-security-research/issues/detail?id=458 --- The attached testcase crashes Win 7 with Special Pool on win32k while accessing freed memory in bGetRealizedBrush​​. --- Proof of Concept:...

Microsoft Windows Kernel - 'bGetRealizedBrush' Use-After-Free (MS15-097)

Source: https://code.google.com/p/google-security-research/issues/detail?id=458 --- The attached testcase crashes Win 7 with Special Pool on win32k while accessing freed memory in bGetRealizedBrush. --- Proof of Concept:...

Microsoft Windows - NtUserGetClipboardAccessToken Token Leak (MS15-023)

Microsoft Windows - NtUserGetClipboardAccessToken Token Leak MS15-023 Source: https://code.google.com/p/google-security-research/issues/detail?id=461 Windows: NtUserGetClipboardAccessToken Token Leak Redux Platform: Windows 8.1 Update, Windows 10 Build 10130 Class: Security Bypass/EoP Summary: Th...

Microsoft Windows Win32k Elevation of Privilege Vulnerability

Microsoft Windows is a series of operating systems released by the American company Microsoft. An elevation of privilege vulnerability exists in the Microsoft Windows kernel mode driver and can be exploited by an attacker to run arbitrary code in kernel mode...

CVE-2015-2511

CVE-2015-2511 is a kernel-mode Win32k memory corruption privilege-escalation vulnerability that affects multiple Windows versions (Vista SP2 to Windows 10). The flaw is triggered by a crafted application via the Windows kernel-mode driver, leading to local privilege elevation. Public exploit refe...

CVE-2015-2527

CVE-2015-2527 is a local privilege-escalation vulnerability in Windows' kernel-mode driver pathway, specifically the process-initialization logic in win32k.sys. The root cause is improper constraining of impersonation levels during certain process initialization scenarios, enabling a locally auth...

CVE-2015-2517: Undefined Security Weakness

The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption...

CVE-2015-2546: Improper Restriction of Operations within the Bounds of a Memory Buffer

The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption...

CVE-2015-2518

Technical details for CVE-2015-2518 are not provided in the supplied documents. No affected products, root cause, or remediation are stated here. Monitor updates from official advisories and connected sources.

CVE-2015-2518: Undefined Security Weakness

The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption...

Windows win32k.sys TTF Font Processing win32k!fsc_RemoveDups Out-of-Bounds Pool Memory Access

Exploit for windows platform in category dos / poc Source: https://code.google.com/p/google-security-research/issues/detail?id=401&can=1 We have encountered a Windows kernel crash in the win32k!fscRemoveDups function while processing corrupted TTF font files, such as: --- PAGEFAULTINNONPAGEDAREA ...

Microsoft Windows - 'win32k.sys' TTF Font Processing win32k!fsc_BLTHoriz Out-of-Bounds Pool Write

Source: https://code.google.com/p/google-security-research/issues/detail?id=402&can=1 We have encountered a Windows kernel crash in the win32k!fscBLTHoriz function while processing corrupted TTF font files, such as: --- DRIVERPAGEFAULTBEYONDENDOFALLOCATION d6 N bytes of memory was allocated and...

The vulnerability of the Windows operating system, which allows a hacker to increase their privileges

The vulnerability of the win32k.sys driver in the Windows operating system is related to deficiencies in access control for certain functions. Exploiting this vulnerability allows a local attacker to enhance their privileges through a specially crafted application...

Privilege escalation

win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."...

CVE-2015-2366

CVE-2015-2366 affects Win32k.sys in multiple Windows kernel‑mode drivers (Windows 7 SP1, Windows 8/8.1, Windows Server 2008 R2 SP1, 2012, RT) and allows local privilege escalation via a crafted application. The root cause is improper handling in the kernel‑mode driver, enabling an attacker to gai...

CVE-2015-2367

win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to obtain sensitive information from...

Hacking Team attack code analysis Part5 Adobe Font Driver kernel privilege elevation vulnerability the second bomb+Win32k KALSR bypass vulnerability-vulnerability warning-the black bar safety net

0x01 vulnerability principle analysis: By simply browsing attack code, we know the attack code used a Win32k. sys in the KASLR bypass vulnerability get the Win32k base, and organize the ROP chain, at the same time, load a font filefont-data. binto use the font driver vulnerability, trigger the RO...

CVE-2015-2365: Undefined Security Weakness

win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted...