Executive Risk Summary
"A remote code execution vulnerability exists in the way that Windows handles TrueType Font (TTF) files. An attacker could exploit this vulnerability by convincing a user to open a specially crafted TTF file, which could allow the attacker to execute arbitrary code."
Anticipated Attack Path
- 1. Phishing or social engineering to deliver the malicious TTF file
- 2. Exploitation of the GDI+ vulnerability to execute arbitrary code
- 3. Potential lateral movement and further exploitation of the compromised system
Am I Vulnerable?
- Verify the presence of the GDI+ component on Windows systems
- Check for the existence of vulnerable TrueType Font files
- Monitor system logs for suspicious activity related to font file processing
Operational Audit Arsenal
Target Type Windows Service
Target Asset win32k.sys
Standard Path C:\Windows\System32\drivers\win32k.sys
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: win32k.sys (Windows Service)
$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}}Patch Impact Forecast
Reboot Required Likely
Potential disruption to graphical user interface and font rendering services
Internal Work Notes
Apply MS13-052 patch to vulnerable Windows systems to mitigate TrueType Font Parsing Vulnerability
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Official Advisoryhttp://www.us-cert.gov/ncas/alerts/TA13-190A
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-054
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17323
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17341
Official Advisoryhttp://www.us-cert.gov/ncas/alerts/TA13-190A
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-054
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17323
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17341
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.