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Vulnerabilities

CVE-2013-3900

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Microsoft WinVerifyTrust Authenticode Signature Verification Remote Code Execution
Published: Jan 10, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Microsoft WinVerifyTrust function Remote Code Execution — A remote code execution vulnerability exists in the way that the WinVerifyTrust function handles Windows Authenticode signature verification for PE files.

🤖 AI Executive Summary

CVE-2013-3900 is a critical remote code execution vulnerability in Microsoft's WinVerifyTrust function affecting Authenticode signature verification for PE files. Attackers can exploit this flaw to bypass security checks and execute malicious code by crafting specially modified PE files that appear legitimately signed.

📄 Description (Arabic)

تسمح هذه الثغرة الأمنية للمهاجمين بتعديل محتوى الملفات التنفيذية الموقعة رقمياً دون إبطال التوقيع الرقمي، مما يؤدي إلى فشل آلية التحقق من صحة توقيعات Authenticode في نظام ويندوز. يستغل المهاجمون هذا الخلل لإدراج تعليمات برمجية خبيثة في ملفات تبدو موثوقة وموقعة من جهات معتمدة. تؤثر الثغرة على جميع إصدارات ويندوز التي تعتمد على وظيفة WinVerifyTrust للتحقق من سلامة البرمجيات، مما يشكل خطراً كبيراً على البنية التحتية الحرجة والأنظمة المؤسسية. يمكن استخدام هذه الثغرة في هجمات سلسلة التوريد البرمجية وحملات البرمجيات الخبيثة المتقدمة.

🤖 ملخص تنفيذي (AI)

الثغرة CVE-2013-3900 هي ثغرة حرجة لتنفيذ التعليمات البرمجية عن بُعد في وظيفة WinVerifyTrust من مايكروسوفت والتي تؤثر على التحقق من توقيع Authenticode لملفات PE. يمكن للمهاجمين استغلال هذا العيب لتجاوز الفحوصات الأمنية وتنفيذ تعليمات برمجية ضارة من خلال صياغة ملفات PE معدلة بشكل خاص تبدو موقعة بشكل شرعي.

🤖 AI Intelligence Analysis Analyzed: Feb 28, 2026 10:02
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations face significant risk as this vulnerability undermines trust in digitally signed software, a cornerstone of secure software deployment. Financial institutions, government entities, and critical infrastructure operators relying on Authenticode verification for application whitelisting and security controls are particularly vulnerable to sophisticated supply chain attacks and malware campaigns that exploit this weakness.
🏢 Affected Saudi Sectors
القطاع المالي والمصرفي الجهات الحكومية البنية التحتية الحرجة قطاع الطاقة والمرافق قطاع الاتصالات وتقنية المعلومات قطاع الرعاية الصحية
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
1. Immediately apply Microsoft security updates and patches addressing CVE-2013-3900 across all Windows systems, prioritizing internet-facing servers and critical infrastructure components.
2. Implement enhanced application whitelisting controls using additional verification mechanisms beyond Authenticode signatures, including hash-based verification and behavioral analysis tools.
3. Deploy endpoint detection and response (EDR) solutions to monitor for suspicious PE file modifications and anomalous code execution patterns, and conduct thorough security audits of all digitally signed executables in production environments.
🔧 خطوات المعالجة (العربية)
1. تطبيق تحديثات وتصحيحات الأمان من مايكروسوفت التي تعالج الثغرة CVE-2013-3900 فوراً على جميع أنظمة ويندوز، مع إعطاء الأولوية للخوادم المتصلة بالإنترنت ومكونات البنية التحتية الحرجة.
2. تنفيذ ضوابط محسّنة لإدراج التطبيقات المسموحة باستخدام آليات تحقق إضافية تتجاوز توقيعات Authenticode، بما في ذلك التحقق القائم على القيم التجزئة وأدوات التحليل السلوكي.
3. نشر حلول الكشف والاستجابة للنقاط الطرفية (EDR) لمراقبة التعديلات المشبوهة على ملفات PE وأنماط تنفيذ التعليمات البرمجية الشاذة، وإجراء عمليات تدقيق أمني شاملة لجميع الملفات التنفيذية الموقعة رقمياً في بيئات الإنتاج.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-2 ECC-2-1 ECC-3-1 ECC-4-1 ECC-5-2
🔵 SAMA CSF
CCC-1.1 CCC-2.2 CCC-3.1 CCC-4.3 TRM-1.2
🟡 ISO 27001:2022
A.12.6.1 A.12.2.1 A.14.2.2 A.18.2.3
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:WinVerifyTrust function
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS80.49%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-07-10
Published 2022-01-10
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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