CVE-2016-3309 | Windows - Win32k Kernel-Mode Driver Operational Intel

Executive Risk Summary

"A local elevation of privilege vulnerability exists in the Windows Win32k kernel-mode driver, allowing an attacker to gain elevated privileges. This vulnerability can be exploited by running a specially crafted application on a vulnerable system."

Anticipated Attack Path

1. Initial Exploitation: An attacker runs a specially crafted application on a vulnerable system
2. Privilege Escalation: The application exploits the vulnerability in the Win32k kernel-mode driver to gain elevated privileges
3. Post-Exploitation: The attacker can use the elevated privileges to install malware, steal sensitive data, or disrupt system operations

Am I Vulnerable?

Verify the version of the Win32k kernel-mode driver on the system
Check for any suspicious or unknown applications running on the system
Monitor system logs for any signs of exploitation or suspicious activity

Operational Audit Arsenal

Target Type System Driver

Target Asset win32k.sys

Standard Path C:\Windows\System32\drivers\win32k.sys

PowerShell

# 🛠️ Senior Engineer Universal Audit
# Target: win32k.sys (System Driver)
$Targets = 'win32k.sys'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}