Executive Risk Summary
"A remote code execution vulnerability exists in the Windows font library due to the improper handling of Open Type fonts. This vulnerability can be exploited by an attacker to execute arbitrary code on a vulnerable system via a crafted website."
Anticipated Attack Path
- 1. Initial Exploitation: Attacker crafts a malicious website to exploit the Open Type font vulnerability
- 2. Privilege Escalation: Exploited process gains elevated privileges to execute arbitrary code
- 3. Lateral Movement: Attacker potentially moves laterally within the network to exploit other vulnerable systems
Am I Vulnerable?
- Verify if the system is running a vulnerable version of Windows
- Check for the presence of the atmfd.dll file in the system
- Apply the MS16-132 patch to remediate the vulnerability
Operational Audit Arsenal
Target Type DLL
Target Asset atmfd.dll
Standard Path C:\Windows\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: atmfd.dll (DLL)
$Targets = 'atmfd.dll'
$SearchPaths = @("$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}} Patch Impact Forecast
Reboot Required Likely
Potential disruption to system services and applications that rely on the font library
Internal Work Notes
Remote code execution vulnerability in Windows font library (atmfd.dll) - apply MS16-132 patch to remediate
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Official Advisoryhttp://www.securityfocus.com/bid/94156
Official Advisoryhttp://www.securitytracker.com/id/1037243
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-132
Official Advisoryhttps://twitter.com/da5ch0/status/820161895269277696
Official Advisoryhttp://www.securityfocus.com/bid/94156
Official Advisoryhttp://www.securitytracker.com/id/1037243
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-132
Official Advisoryhttps://twitter.com/da5ch0/status/820161895269277696
Official Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7256
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.