📄 Description (English)
Microsoft Windows Privilege Escalation Vulnerability — Microsoft Windows contains an unspecified vulnerability due to the way ws2ifsl.sys (Winsock) handles objects in memory, allowing for privilege escalation. Successful exploitation allows an attacker to execute code with elevated privileges.
🤖 AI Executive Summary
CVE-2019-1215 is a critical privilege escalation vulnerability in Microsoft Windows affecting the ws2ifsl.sys (Winsock) driver, scoring 9.0 on the CVSS scale. The flaw stems from improper handling of objects in memory, enabling authenticated attackers to escalate privileges and execute code with SYSTEM-level access. A public exploit is available, significantly increasing the risk of active exploitation in the wild. Organizations running unpatched Windows systems are at immediate risk of full system compromise following initial access.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 13, 2026 19:17
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses a severe risk to Saudi organizations across multiple critical sectors. Government entities under NCA oversight running Windows-based infrastructure are at high risk of privilege escalation leading to lateral movement and data exfiltration. Banking and financial institutions regulated by SAMA face potential compromise of core banking systems if attackers gain initial footholds. Saudi Aramco and energy sector OT/IT environments using Windows systems could see escalation from limited access to full domain compromise. Healthcare organizations and telecom providers such as STC with large Windows estates are equally exposed. Given the availability of a public exploit, threat actors including APT groups known to target Saudi infrastructure (e.g., OilRig/APT34) could weaponize this vulnerability as part of post-exploitation chains.
🏢 Affected Saudi Sectors
Government
Banking
Energy
Healthcare
Telecom
Defense
Education
Transportation
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Apply Microsoft Security Update KB4516033 (September 2019 Patch Tuesday) immediately across all affected Windows systems.
2. Prioritize patching of internet-facing systems, domain controllers, and critical infrastructure servers first.
3. Audit all Windows systems for patch compliance using WSUS, SCCM, or equivalent patch management tools.
Patching Guidance:
4. Download and deploy the official patch from Microsoft Security Advisory ADV190023 / MS Security Update Guide.
5. Ensure Windows Update is enabled and verify patch installation via 'wmic qfe list' or PowerShell 'Get-HotFix'.
6. Reboot systems after patching to ensure the updated ws2ifsl.sys driver is loaded.
Compensating Controls (if patching is delayed):
7. Restrict local logon access to critical systems — limit interactive logins to authorized administrators only.
8. Implement application whitelisting to prevent execution of unknown binaries that may exploit this vulnerability.
9. Deploy endpoint detection and response (EDR) solutions to monitor for suspicious privilege escalation activity.
10. Monitor for anomalous use of ws2ifsl.sys and Winsock-related system calls via SIEM.
Detection Rules:
11. Alert on unexpected SYSTEM-level process creation from non-SYSTEM parent processes.
12. Monitor Event ID 4688 for privilege escalation indicators and unusual token manipulation.
13. Deploy Sigma/YARA rules targeting ws2ifsl.sys exploitation patterns.
14. Enable Windows Defender Credential Guard and Exploit Protection where applicable.
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تطبيق تحديث Microsoft الأمني KB4516033 (تحديث سبتمبر 2019) فوراً على جميع أنظمة Windows المتأثرة.
2. إعطاء الأولوية لترقيع الأنظمة المكشوفة على الإنترنت ووحدات التحكم بالنطاق وخوادم البنية التحتية الحيوية.
3. مراجعة جميع أنظمة Windows للتحقق من الامتثال للتحديثات باستخدام WSUS أو SCCM أو أدوات مماثلة.
إرشادات الترقيع:
4. تنزيل ونشر التحديث الرسمي من Microsoft Security Advisory ADV190023.
5. التأكد من تفعيل Windows Update والتحقق من تثبيت التحديث عبر 'wmic qfe list' أو PowerShell.
6. إعادة تشغيل الأنظمة بعد الترقيع لضمان تحميل مشغّل ws2ifsl.sys المحدَّث.
ضوابط التعويض (في حال تأخر الترقيع):
7. تقييد صلاحيات تسجيل الدخول المحلي على الأنظمة الحيوية وحصرها بالمسؤولين المخوّلين فقط.
8. تطبيق قوائم السماح للتطبيقات لمنع تنفيذ الملفات غير المعروفة.
9. نشر حلول الكشف والاستجابة على النقاط الطرفية (EDR) لمراقبة نشاط رفع الصلاحيات المشبوه.
10. مراقبة الاستخدام غير الطبيعي لـ ws2ifsl.sys عبر نظام SIEM.
قواعد الكشف:
11. التنبيه على إنشاء عمليات بصلاحيات SYSTEM من عمليات أصل غير SYSTEM.
12. مراقبة معرّف الحدث 4688 لمؤشرات رفع الصلاحيات والتلاعب غير المعتاد بالرموز المميزة.
13. نشر قواعد Sigma/YARA التي تستهدف أنماط استغلال ws2ifsl.sys.
14. تفعيل Windows Defender Credential Guard وExploit Protection حيثما أمكن.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1-4-2: Patch and vulnerability management
ECC-2-3-1: Protection of operating systems and applications
ECC-2-5-1: Privileged access management
ECC-3-3-3: Security monitoring and logging
ECC-1-3-6: Cybersecurity incident management
🔵 SAMA CSF
3.3.6 - Vulnerability Management
3.3.7 - Patch Management
3.4.2 - Privileged Access Management
3.3.9 - Security Monitoring
3.2.5 - Endpoint Security
🟡 ISO 27001:2022
A.8.8 - Management of technical vulnerabilities
A.8.7 - Protection against malware
A.8.15 - Logging
A.5.15 - Access control
A.8.9 - Configuration management
🟣 PCI DSS v4.0
Requirement 6.3.3 - All system components are protected from known vulnerabilities by installing applicable security patches
Requirement 7.2 - Access to system components and data is appropriately defined and assigned
Requirement 10.2 - Audit logs capture all individual user access to cardholder data
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Windows