📄 Description (English)
Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.
🤖 AI Executive Summary
CVE-2026-26141 is a privilege escalation vulnerability in Azure Arc's Hybrid Worker Windows Extension that allows authenticated attackers to elevate privileges locally. With a CVSS score of 7.8 and no public exploit currently available, this poses a significant risk to organizations using Azure hybrid infrastructure. Immediate patching is recommended to prevent unauthorized privilege escalation in critical cloud-hybrid environments.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 29, 2026 09:07
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations heavily reliant on Azure hybrid infrastructure face significant risk, particularly: (1) Banking sector (SAMA-regulated institutions) using Azure for critical financial systems and hybrid cloud deployments; (2) Government entities (NCA oversight) managing sensitive data across cloud-hybrid architectures; (3) Energy sector (ARAMCO and subsidiaries) utilizing Azure Automation for infrastructure management; (4) Telecommunications (STC, Mobily) running hybrid workloads; (5) Healthcare providers managing patient data in hybrid environments. The privilege escalation capability could lead to unauthorized access to sensitive systems, data exfiltration, and compliance violations under SAMA CSF and NCA ECC frameworks.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Energy and Utilities
Telecommunications
Healthcare
Manufacturing
Retail and E-commerce
🎯 MITRE ATT&CK Techniques
T1548 - Abuse Elevation Control Mechanism
T1548.004 - Abuse Elevation Control Mechanism: Elevated Execution with Prompt
T1134 - Access Token Manipulation
T1547 - Boot or Logon Autostart Execution
T1547.001 - Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
T1547.014 - Boot or Logon Autostart Execution: Active Setup
T1098 - Account Manipulation
T1098.001 - Account Manipulation: Additional Cloud Credentials
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Azure Arc Hybrid Worker Windows Extension deployments across your organization
2. Identify systems running affected versions (all versions prior to patched release)
3. Restrict local administrative access to Azure Arc Hybrid Worker systems to authorized personnel only
4. Enable Azure Arc audit logging and monitor for suspicious privilege escalation attempts
PATCHING GUIDANCE:
1. Apply Microsoft's security update for Azure Automation Hybrid Worker Windows Extension immediately
2. Test patches in non-production environments first
3. Prioritize patching for systems managing critical infrastructure and sensitive data
4. Verify patch installation by checking extension version in Azure Portal
COMPENSATING CONTROLS (if patching delayed):
1. Implement network segmentation to isolate Hybrid Worker systems
2. Enable Just-In-Time (JIT) access for administrative functions
3. Enforce multi-factor authentication for all Azure Arc administrative access
4. Implement principle of least privilege for service accounts
DETECTION RULES:
1. Monitor Windows Event Logs for privilege escalation attempts (Event ID 4688, 4672)
2. Alert on unexpected elevation of privileges for Azure Arc service accounts
3. Track changes to local group memberships on Hybrid Worker systems
4. Monitor Azure Activity Logs for suspicious Azure Arc extension modifications
5. Implement SIEM rules to detect lateral movement from compromised Hybrid Workers
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع نشرات Azure Arc Hybrid Worker Windows Extension عبر المنظمة
2. حدد الأنظمة التي تعمل بالإصدارات المتأثرة
3. قيد الوصول الإداري المحلي لأنظمة Azure Arc Hybrid Worker للموظفين المصرح لهم فقط
4. فعّل تسجيل Azure Arc وراقب محاولات رفع الامتيازات المريبة
إرشادات التصحيح:
1. طبق تحديث الأمان من Microsoft لـ Azure Automation Hybrid Worker Windows Extension فورًا
2. اختبر التصحيحات في بيئات غير الإنتاج أولاً
3. أعطِ الأولوية لتصحيح الأنظمة التي تدير البنية التحتية الحرجة والبيانات الحساسة
4. تحقق من تثبيت التصحيح بفحص إصدار الامتداد في Azure Portal
الضوابط البديلة (إذا تأخر التصحيح):
1. طبق تقسيم الشبكة لعزل أنظمة Hybrid Worker
2. فعّل الوصول في الوقت المناسب (JIT) للوظائف الإدارية
3. فرض المصادقة متعددة العوامل لجميع الوصول الإداري لـ Azure Arc
4. طبق مبدأ أقل امتياز لحسابات الخدمة
قواعد الكشف:
1. راقب سجلات Windows Event Logs لمحاولات رفع الامتيازات
2. أصدر تنبيهات عند رفع امتيازات غير متوقع لحسابات خدمة Azure Arc
3. تتبع التغييرات في عضويات المجموعات المحلية على أنظمة Hybrid Worker
4. راقب Azure Activity Logs للتعديلات المريبة على امتدادات Azure Arc
5. طبق قواعل SIEM للكشف عن الحركة الجانبية من Hybrid Workers المخترقة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1: Access Control and Authentication
ECC 2024 - 5.2.1: Privilege Management
ECC 2024 - 5.3.1: User Access Rights Review
ECC 2024 - 6.1.1: Audit and Accountability
🔵 SAMA CSF
SAMA CSF - ID.AM-1: Asset Management
SAMA CSF - PR.AC-1: Access Control
SAMA CSF - PR.AC-4: Access Rights Management
SAMA CSF - DE.CM-1: Audit Logging
SAMA CSF - RS.MI-2: Incident Response
🟡 ISO 27001:2022
ISO 27001:2022 - A.5.2: User Registration and De-registration
ISO 27001:2022 - A.5.3: Access Rights
ISO 27001:2022 - A.8.2: Privileged Access Rights
ISO 27001:2022 - A.8.3: Information Access Restriction
ISO 27001:2022 - A.12.4: Logging
🟣 PCI DSS v4.0.1
PCI DSS 3.2.1: Requirement 2 - Default Passwords
PCI DSS 3.2.1: Requirement 7 - Restrict Access by Business Need
PCI DSS 3.2.1: Requirement 8 - User Identification and Authentication
📦 Affected Products / CPE 1 entries
microsoft:azure_automation_hybrid_worker_windows_extension