CVE-2015-1701 Microsoft Win32k Privilege Escalation

Exploited in the wild High 7.8 Published Updated

Local attackers can gain elevated privileges via a crafted application exploiting the Win32k.sys kernel driver in Windows.

Exploited in the wild
Since 3 Mar 2022
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2015-1701?

CVE-2015-1701 is a high-severity vulnerability in Microsoft Windows 2003 Server, published on 21 Apr 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."

Which versions are affected by CVE-2015-1701?

It affects 4 products.

Products include Microsoft Windows 2003 Server, Microsoft Windows 7, Microsoft Windows Server 2008, Microsoft Windows Vista.

How do I fix CVE-2015-1701?

No fix has been published for CVE-2015-1701 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Mar 2022.

Is CVE-2015-1701 being exploited?

Yes. Attackers have exploited CVE-2015-1701 in the wild since at least 3 Mar 2022, including in ransomware campaigns.

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

All Microsoft Windows 2003 Server vulnerabilities

Sources

Also known as GHSA-rq9p-fw9r-ppg4.

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