Actively exploited in the wild
Microsoft Win32k Privilege Escalation Vulnerability
Microsoft - Win32k · Listed in the CISA KEV since 2022-03-28. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2013-3660
HighCVSS 7.8KEVSummary
Funkcja EPATHOBJ::pprFlattenRec w win32k.sys w systemach Microsoft Windows XP SP2 i SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 i R2 SP1, Windows 7 SP1, Windows 8 oraz Windows Server 2012 nieprawidłowo inicjalizuje wskaźnika do następnego obiektu w pewnej liście. Umożliwia to lokalnym użytkownikom uzyskanie dostępu do zapisu w łańcuchu PATHRECORD, co prowadzi do uzyskania uprawnień poprzez wywoływanie wielu funkcji FlattenPath.
Risk Assessment
Podatność ta może prowadzić do eskalacji uprawnień lokalnych użytkowników, co stwarza poważne zagrożenie dla integralności systemu oraz danych w organizacji.
Recommendation
Zaleca się aktualizację systemów operacyjnych do najnowszych wersji, które zawierają poprawki bezpieczeństwa eliminujące tę podatność oraz monitorowanie dostępu do systemów w celu wykrycia potencjalnych prób eskalacji uprawnień.
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Original NVD description (English source)
The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka "Win32k Read AV Vulnerability."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

