📄 Description (English)
Apple iOS WebKit Buffer Overflow Vulnerability — Apple iOS WebKit contains a buffer-overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
🤖 AI Executive Summary
CVE-2021-30666 is a critical buffer overflow vulnerability in Apple iOS WebKit affecting Safari and other WebKit-based browsers, with a CVSS score of 9.0. Exploitation requires only user interaction with maliciously crafted web content, enabling arbitrary code execution with full device privileges. An active exploit is publicly available, making this an immediate threat to all iOS users in Saudi Arabia, particularly those accessing untrusted websites or clicking suspicious links.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 15:30
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses severe risk to Saudi banking sector (SAMA-regulated institutions), government entities (NCA oversight), and healthcare organizations using iOS devices for critical operations. Financial institutions relying on iOS for mobile banking applications face direct compromise risk. Government agencies and ministries using iPhones/iPads for classified communications are at high risk. Telecom operators (STC, Mobily, Zain) managing network infrastructure via iOS devices could face operational disruption. Energy sector (ARAMCO) personnel using iOS for SCADA access or critical communications are vulnerable. Educational institutions and private sector organizations across Saudi Arabia face data breach risks from compromised employee devices.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Education
Retail and E-commerce
Insurance
Manufacturing
🎯 MITRE ATT&CK Techniques
T1190 - Exploit Public-Facing Application
T1203 - Exploitation for Client Execution
T1566.002 - Phishing: Spearphishing Link
T1204.001 - User Execution: Malicious Link
T1059.007 - Command and Scripting Interpreter: JavaScript
T1055 - Process Injection
T1548.004 - Abuse Elevation Control Mechanism: Elevated Execution with Prompt
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Issue urgent security alert to all iOS users in your organization
2. Restrict access to untrusted websites and implement web filtering
3. Disable JavaScript in Safari settings as temporary mitigation
4. Monitor for suspicious device behavior and unauthorized access attempts
PATCHING GUIDANCE:
1. Update all iOS devices to iOS 14.7 or later immediately (patch released June 2021)
2. Enable automatic security updates in Settings > General > Software Update > Automatic Updates
3. Prioritize patching for devices accessing sensitive systems (banking, government, healthcare)
4. Verify patch installation across all organizational devices within 48 hours
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement Mobile Device Management (MDM) to restrict Safari functionality
2. Deploy network-level web filtering to block known malicious domains
3. Enforce VPN usage for all iOS device traffic
4. Disable WebKit-based third-party browsers; use only official Safari with restrictions
5. Implement application whitelisting to prevent unauthorized code execution
DETECTION RULES:
1. Monitor for unexpected Safari crashes or system reboots
2. Alert on unusual network connections from Safari process
3. Track failed authentication attempts following device compromise indicators
4. Monitor for unauthorized access to sensitive applications post-compromise
5. Implement endpoint detection and response (EDR) solutions on connected systems
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. إصدار تنبيه أمني عاجل لجميع مستخدمي iOS في مؤسستك
2. تقييد الوصول إلى المواقع غير الموثوقة وتطبيق تصفية الويب
3. تعطيل JavaScript في إعدادات Safari كتخفيف مؤقت
4. مراقبة السلوك المريب للجهاز ومحاولات الوصول غير المصرح بها
إرشادات التصحيح:
1. تحديث جميع أجهزة iOS إلى iOS 14.7 أو أحدث فورًا (التصحيح الصادر في يونيو 2021)
2. تفعيل التحديثات الأمنية التلقائية في الإعدادات > عام > تحديث البرنامج > التحديثات التلقائية
3. أولويات التصحيح للأجهزة التي تصل إلى الأنظمة الحساسة (البنوك والحكومة والرعاية الصحية)
4. التحقق من تثبيت التصحيح عبر جميع أجهزة المؤسسة خلال 48 ساعة
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكنًا):
1. تطبيق إدارة الأجهزة المحمولة (MDM) لتقييد وظائف Safari
2. نشر تصفية الويب على مستوى الشبكة لحظر النطاقات الضارة المعروفة
3. فرض استخدام VPN لجميع حركة مرور أجهزة iOS
4. تعطيل متصفحات الطرف الثالث المستندة إلى WebKit؛ استخدم Safari الرسمي فقط مع القيود
5. تطبيق القائمة البيضاء للتطبيقات لمنع تنفيذ الكود غير المصرح به
قواعد الكشف:
1. مراقبة أعطال Safari غير المتوقعة أو إعادة تشغيل النظام
2. تنبيه الاتصالات الشبكية غير العادية من عملية Safari
3. تتبع محاولات المصادقة الفاشلة بعد مؤشرات اختراق الجهاز
4. مراقبة الوصول غير المصرح به إلى التطبيقات الحساسة بعد الاختراق
5. تطبيق حلول الكشف والاستجابة على نقطة النهاية (EDR) على الأنظمة المتصلة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures
ECC 2024 A.6.1.1 - Access Control and Authentication
ECC 2024 A.8.1.1 - Asset Management and Inventory
ECC 2024 A.12.2.1 - Change Management and Patch Management
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Business Environment
SAMA CSF PR.AC-1 - Access Control
SAMA CSF PR.PT-2 - Protective Technology
SAMA CSF DE.CM-8 - Vulnerability Scans
SAMA CSF RS.MI-2 - Incident Response and Recovery
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security
ISO 27001:2022 A.8.1 - Asset Management
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.16.1 - Planning of Information Security Incident Management
🟣 PCI DSS v4.0
PCI DSS 6.2 - Security Patches and Updates
PCI DSS 11.2 - Vulnerability Scanning
PCI DSS 12.2 - Configuration Standards
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Apple:iOS