CVE-2013-3660 Microsoft Win32k Privilege Escalation

Exploited in the wild High 7.8 Published Updated

Local attackers can gain privileges by exploiting a pointer initialization flaw in the Windows kernel-mode driver win32k.sys.

Exploited in the wild
Since 28 Mar 2022
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2013-3660?

CVE-2013-3660 is a high-severity vulnerability in Microsoft Windows 7, published on 24 May 2013. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

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."

Weakness: CWE-119

Which versions are affected by CVE-2013-3660?

It affects 8 products.

Products include Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows Rt, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2013-3660?

No fix has been published for CVE-2013-3660 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 18 Apr 2022.

Is CVE-2013-3660 being exploited?

Yes. Attackers have exploited CVE-2013-3660 in the wild since at least 28 Mar 2022.

Public exploit code: 1 Metasploit module, 3 Exploit-DB entries and 2 proofs of concept on GitHub.

All Microsoft Windows 7 vulnerabilities

Sources

Also known as CVE-2013-3130, GHSA-f2wh-c6mm-3vrx.

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