📄 Description (English)
Microsoft Internet Explorer Information Disclosure Vulnerability — An information disclosure vulnerability exists when Internet Explorer improperly handles objects in memory. An attacker who successfully exploited this vulnerability could test for the presence of files on disk.
🤖 AI Executive Summary
CVE-2019-0676 is a critical information disclosure vulnerability in Microsoft Internet Explorer that allows attackers to test for the presence of files on disk through improper memory object handling. With a CVSS score of 9.0 and a confirmed public exploit available, this vulnerability poses significant risk to organizations still running Internet Explorer. Attackers can leverage this flaw to enumerate sensitive files on victim systems, potentially enabling follow-on attacks by mapping the target environment. The combination of exploit availability and widespread legacy IE usage in enterprise environments makes this an urgent remediation priority.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 12, 2026 09:33
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations across multiple critical sectors remain exposed due to widespread legacy Internet Explorer usage in enterprise and government environments. Government agencies operating under NCA oversight and banking institutions regulated by SAMA are particularly at risk, as many internal portals and legacy web applications still mandate Internet Explorer. Saudi Aramco and energy sector organizations running legacy SCADA/ICS management consoles that rely on IE-based interfaces face elevated risk of file system enumeration enabling targeted follow-on attacks. Healthcare organizations using older hospital information systems and telecom providers like STC with legacy customer management platforms are also significantly exposed. The exploit availability means threat actors, including APT groups known to target Saudi infrastructure (e.g., OilRig/APT34), can readily weaponize this vulnerability for reconnaissance operations.
🏢 Affected Saudi Sectors
Government
Banking
Energy
Healthcare
Telecom
Education
Defense
Critical Infrastructure
⚖️ Saudi Risk Score (AI)
8.7
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Apply Microsoft Security Update KB4486474 (February 2019 Patch Tuesday) immediately for all affected Internet Explorer versions (IE 10 and IE 11).
2. Identify all systems running Internet Explorer via asset inventory and prioritize patching based on exposure level.
3. Disable Internet Explorer on systems where it is not operationally required using Group Policy (GPO).
PATCHING GUIDANCE:
4. Deploy patches via WSUS, SCCM, or Intune across the enterprise.
5. For Windows Server environments running IE, apply the corresponding server OS patches.
6. Verify patch deployment using vulnerability scanners (Tenable Nessus, Qualys) targeting CVE-2019-0676.
COMPENSATING CONTROLS (if patching is delayed):
7. Block Internet Explorer from accessing untrusted external websites using web proxy policies.
8. Enable Enhanced Protected Mode (EPM) in Internet Explorer settings.
9. Set Internet Zone security to High in IE settings.
10. Restrict file system access permissions for the IEXPLORE.EXE process using application control policies (AppLocker/WDAC).
11. Deploy network-level egress filtering to detect anomalous file enumeration behavior.
DETECTION RULES:
12. Monitor for suspicious IE process behavior using EDR solutions (CrowdStrike, Microsoft Defender for Endpoint).
13. Create SIEM alerts for IEXPLORE.EXE spawning unusual child processes or accessing sensitive file paths.
14. Deploy Snort/Suricata rules targeting known exploit payloads for CVE-2019-0676.
15. Review web proxy logs for access to known exploit-hosting domains.
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تطبيق تحديث Microsoft الأمني KB4486474 (تحديث فبراير 2019) فوراً لجميع إصدارات Internet Explorer المتأثرة (IE 10 و IE 11).
2. تحديد جميع الأنظمة التي تعمل بـ Internet Explorer عبر جرد الأصول وتحديد أولويات التصحيح بناءً على مستوى التعرض.
3. تعطيل Internet Explorer على الأنظمة التي لا تحتاجه تشغيلياً باستخدام سياسة المجموعة (GPO).
إرشادات التصحيح:
4. نشر التحديثات عبر WSUS أو SCCM أو Intune عبر المؤسسة.
5. لبيئات Windows Server التي تشغل IE، تطبيق تحديثات نظام التشغيل الخادم المقابلة.
6. التحقق من نشر التحديثات باستخدام ماسحات الثغرات (Tenable Nessus، Qualys) التي تستهدف CVE-2019-0676.
ضوابط التعويض (في حالة تأخر التصحيح):
7. منع Internet Explorer من الوصول إلى المواقع الخارجية غير الموثوقة باستخدام سياسات وكيل الويب.
8. تفعيل وضع الحماية المحسّن (EPM) في إعدادات Internet Explorer.
9. ضبط أمان منطقة الإنترنت على مستوى عالٍ في إعدادات IE.
10. تقييد أذونات الوصول إلى نظام الملفات لعملية IEXPLORE.EXE باستخدام سياسات التحكم في التطبيقات (AppLocker/WDAC).
11. نشر تصفية حركة المرور الصادرة على مستوى الشبكة للكشف عن سلوك حصر الملفات الشاذ.
قواعد الكشف:
12. مراقبة سلوك عملية IE المشبوه باستخدام حلول EDR (CrowdStrike، Microsoft Defender for Endpoint).
13. إنشاء تنبيهات SIEM لـ IEXPLORE.EXE التي تولد عمليات فرعية غير عادية أو تصل إلى مسارات ملفات حساسة.
14. نشر قواعد Snort/Suricata التي تستهدف حمولات الاستغلال المعروفة لـ CVE-2019-0676.
15. مراجعة سجلات وكيل الويب للوصول إلى النطاقات المعروفة باستضافة الاستغلال.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-4-2: Cybersecurity Vulnerability Management
ECC-1-4-3: Patch Management and Security Updates
ECC-2-3-1: Secure Configuration Management
ECC-2-5-1: Protection of Information Assets
ECC-3-3-2: Web Application Security
🔵 SAMA CSF
Cybersecurity Risk Management — Asset Vulnerability Assessment
Cybersecurity Operations — Patch and Vulnerability Management
Cybersecurity Architecture — Secure Configuration
Cybersecurity Resilience — Threat and Vulnerability Management
Third-Party Cybersecurity — Legacy System Risk
🟡 ISO 27001:2022
A.8.8 — Management of technical vulnerabilities
A.8.9 — Configuration management
A.8.19 — Installation of software on operational systems
A.8.20 — Networks security
A.5.37 — Documented operating procedures
🟣 PCI DSS v4.0
Requirement 6.3.3 — All system components are protected from known vulnerabilities by installing applicable security patches
Requirement 6.2.4 — Software engineering techniques to prevent or mitigate common software attacks
Requirement 11.3.1 — Internal vulnerability scans are performed periodically
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Internet Explorer