📄 Description (English)
YouTube Video Grabber, now referred to as YouTube Downloader, 1.9.9.1 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting the Structured Exception Handler. Attackers can craft a malicious payload of 712 bytes with SEH manipulation to trigger a bind shell connection on a specified local port.
🤖 AI Executive Summary
CVE-2021-47775 is a critical buffer overflow vulnerability in YouTube Downloader 1.9.9.1 that enables arbitrary code execution through SEH (Structured Exception Handler) manipulation. Attackers can craft a 712-byte malicious payload to establish unauthorized shell access on compromised systems. While no public exploit is currently available, the vulnerability poses significant risk to organizations using this software for media management and archival purposes.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 24, 2026 16:00
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily affects Saudi organizations in media, broadcasting, and content management sectors (including government media entities, educational institutions, and private media companies). Government agencies using YouTube Downloader for archival purposes face elevated risk. Banking and financial institutions may be impacted if used in employee workstations for training content. Telecommunications companies (STC, Mobily) and media production firms are at moderate risk. The vulnerability could lead to lateral movement within corporate networks if exploited on internet-facing or employee-accessible systems.
🏢 Affected Saudi Sectors
Media and Broadcasting
Government and Public Sector
Education
Telecommunications
Banking and Financial Services
Content Management
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running YouTube Downloader 1.9.9.1 across the organization
2. Isolate affected systems from network if actively used in production
3. Disable or restrict access to the application until patching is complete
PATCHING GUIDANCE:
1. Upgrade YouTube Downloader to version 1.9.9.2 or later immediately
2. Verify patch installation by checking application version in Help > About
3. Test patched version in isolated environment before production deployment
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement application whitelisting to restrict YouTube Downloader execution
2. Run application in sandboxed environment with restricted privileges
3. Disable SEH-based protections monitoring and implement DEP/ASLR enforcement
4. Restrict network access from systems running vulnerable version
DETECTION RULES:
1. Monitor for YouTube Downloader process creation with suspicious command-line arguments
2. Alert on bind shell connections on non-standard ports from YouTube Downloader process
3. Monitor for SEH exception handler overwrites in memory dumps
4. Track file modifications in YouTube Downloader installation directory
5. Log and alert on network connections initiated by YouTube Downloader to unexpected destinations
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل YouTube Downloader 1.9.9.1 في المنظمة
2. عزل الأنظمة المتأثرة عن الشبكة إذا كانت قيد الاستخدام الفعلي
3. تعطيل أو تقييد الوصول إلى التطبيق حتى اكتمال التصحيح
إرشادات التصحيح:
1. ترقية YouTube Downloader إلى الإصدار 1.9.9.2 أو أحدث فوراً
2. التحقق من تثبيت التصحيح بفحص إصدار التطبيق في Help > About
3. اختبار الإصدار المصحح في بيئة معزولة قبل نشره في الإنتاج
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تطبيق قائمة بيضاء للتطبيقات لتقييد تنفيذ YouTube Downloader
2. تشغيل التطبيق في بيئة معزولة برمجياً مع امتيازات مقيدة
3. تعطيل مراقبة حماية SEH وتطبيق فرض DEP/ASLR
4. تقييد الوصول إلى الشبكة من الأنظمة التي تقوم بتشغيل الإصدار الضعيف
قواعد الكشف:
1. مراقبة إنشاء عملية YouTube Downloader بحجج سطر أوامر مريبة
2. التنبيه على اتصالات bind shell على منافذ غير قياسية من عملية YouTube Downloader
3. مراقبة الكتابة فوق معالج الاستثناءات في ملفات الذاكرة
4. تسجيل وتتبع تعديلات الملفات في دليل تثبيت YouTube Downloader
5. تسجيل والتنبيه على اتصالات الشبكة التي يبدأها YouTube Downloader إلى وجهات غير متوقعة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring and logging of access
🔵 SAMA CSF
SAMA CSF ID.BE-5.1 - Cybersecurity risk management strategy
SAMA CSF PR.DS-6 - Data is protected from unauthorized access
SAMA CSF DE.CM-1 - The network is monitored to detect potential cybersecurity events
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure development policy
ISO 27001:2022 A.8.1.1 - Inventory of assets
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches must be installed within defined timeframe