📄 Description (English)
Microsoft Windows LSA Spoofing Vulnerability — Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.
🤖 AI Executive Summary
CVE-2022-26925 is a critical LSA spoofing vulnerability in Microsoft Windows that allows attackers to coerce domain controllers into NTLM authentication with attacker-controlled systems. With a CVSS score of 9.0 and publicly available exploits, this vulnerability poses an immediate threat to Active Directory infrastructure across Saudi organizations. Successful exploitation enables credential theft and lateral movement within enterprise networks, making urgent patching essential for all Windows domain environments.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 21:46
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability critically impacts Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), and large enterprises relying on Active Directory. Financial institutions using Windows domain controllers for authentication are at highest risk of credential compromise. Telecommunications providers (STC, Mobily) and energy sector organizations (ARAMCO, SEC) managing critical infrastructure through Windows domains face significant operational risk. Healthcare organizations and government ministries dependent on Windows-based identity management systems are vulnerable to unauthorized access and data exfiltration.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Telecommunications
Energy and Utilities
Healthcare
Education
Large Enterprises with Active Directory
🎯 MITRE ATT&CK Techniques
T1040 - Traffic Capture or Redirection
T1557 - Adversary-in-the-Middle
T1187 - Forced Authentication
T1040 - Network Sniffing
T1550.002 - Use Alternate Authentication Material: Pass the Hash
T1550.004 - Use Alternate Authentication Material: Network Logon Password
T1021.002 - Remote Services: SMB/Windows Admin Shares
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Windows domain controllers and member servers in your environment
2. Prioritize patching domain controllers first, then member servers
3. Implement network segmentation to restrict NTLM traffic where possible
4. Enable NTLM audit logging on all domain controllers
PATCHING GUIDANCE:
1. Apply Microsoft security updates released in June 2022 or later
2. Test patches in non-production environment before deployment
3. Schedule maintenance windows for domain controller patching
4. Verify patch installation using Windows Update or WSUS
COMPENSATING CONTROLS (if patching delayed):
1. Disable NTLM authentication and enforce Kerberos where possible
2. Implement Extended Protection for Authentication (EPA) on critical services
3. Deploy network access controls to restrict NTLM relay attacks
4. Monitor for suspicious NTLM authentication patterns
DETECTION RULES:
1. Monitor Event ID 4776 (NTLM authentication attempts) for unusual patterns
2. Alert on failed NTLM authentications from unexpected sources
3. Track Event ID 4624 (successful logons) with NTLM authentication type
4. Implement Sysmon rules to detect NTLM relay attack indicators
5. Monitor for coercion techniques (MS-RPRN, PetitPotam) in network traffic
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع متحكمات المجال وخوادم الأعضاء في بيئتك
2. إعطاء الأولوية لتصحيح متحكمات المجال أولاً، ثم خوادم الأعضاء
3. تنفيذ تقسيم الشبكة لتقييد حركة NTLM حيث أمكن
4. تفعيل تسجيل تدقيق NTLM على جميع متحكمات المجال
إرشادات التصحيح:
1. تطبيق تحديثات أمان Microsoft الصادرة في يونيو 2022 أو لاحقاً
2. اختبار التصحيحات في بيئة غير الإنتاج قبل النشر
3. جدولة نوافذ الصيانة لتصحيح متحكمات المجال
4. التحقق من تثبيت التصحيح باستخدام Windows Update أو WSUS
الضوابط البديلة (إذا تأخر التصحيح):
1. تعطيل مصادقة NTLM وفرض Kerberos حيث أمكن
2. تنفيذ الحماية الموسعة للمصادقة (EPA) على الخدمات الحرجة
3. نشر عناصر التحكم في الوصول إلى الشبكة لتقييد هجمات NTLM relay
4. مراقبة أنماط مصادقة NTLM المريبة
قواعد الكشف:
1. مراقبة معرّف الحدث 4776 (محاولات مصادقة NTLM) للأنماط غير المعتادة
2. التنبيه على فشل مصادقة NTLM من مصادر غير متوقعة
3. تتبع معرّف الحدث 4624 (عمليات تسجيل الدخول الناجحة) مع نوع مصادقة NTLM
4. تنفيذ قواعد Sysmon للكشف عن مؤشرات هجوم NTLM relay
5. مراقبة تقنيات الإجبار (MS-RPRN, PetitPotam) في حركة الشبكة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies
ECC 2024 A.5.2.1 - User Registration and De-registration
ECC 2024 A.5.3.1 - Access Rights Review
ECC 2024 A.8.2.1 - User Endpoint Devices
ECC 2024 A.8.3.1 - Information Access Logging
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Assets
SAMA CSF PR.AC-1 - Access Control Policy
SAMA CSF PR.AC-4 - Access Rights Management
SAMA CSF DE.CM-1 - Network Monitoring
SAMA CSF DE.AE-1 - Anomalies and Events Detection
🟡 ISO 27001:2022
ISO 27001:2022 A.5.3 - Segregation of duties
ISO 27001:2022 A.8.2 - User endpoint devices
ISO 27001:2022 A.8.3 - Information access logging
ISO 27001:2022 A.8.4 - Access to cryptographic keys
ISO 27001:2022 A.12.4 - Logging
🟣 PCI DSS v4.0
PCI DSS 2.1 - Security Configuration Standards
PCI DSS 6.2 - Security patches and updates
PCI DSS 7.1 - Limit access to system components
PCI DSS 10.2 - Implement automated audit trails
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Windows