📄 Description (English)
TFTP Turbo 4.6.1273 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious executables that will be launched with LocalSystem permissions.
🤖 AI Executive Summary
CVE-2020-37063 is a local privilege escalation vulnerability in TFTP Turbo 4.6.1273 affecting Windows systems through an unquoted service path. Attackers with local access can inject malicious executables into the service path to execute arbitrary code with LocalSystem privileges. While no public exploit is available, the vulnerability poses significant risk to organizations using this legacy TFTP service, particularly in industrial and network infrastructure environments common in Saudi Arabia.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 15:01
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in critical sectors: (1) Energy sector (ARAMCO, utilities) using TFTP for device management and firmware updates; (2) Telecommunications (STC, Mobily, Zain) for network equipment provisioning; (3) Government agencies and NCA infrastructure relying on legacy network services; (4) Healthcare institutions using TFTP for medical device management; (5) Banking sector for ATM and network device configuration. The vulnerability is particularly concerning in industrial control systems and network infrastructure prevalent in Saudi Arabia's critical infrastructure.
🏢 Affected Saudi Sectors
Energy (ARAMCO, utilities)
Telecommunications (STC, Mobily, Zain)
Government & NCA
Healthcare
Banking & Financial Services
Industrial Control Systems
Network Infrastructure
🎯 MITRE ATT&CK Techniques
T1548.004 - Abuse Elevation Control Mechanism: Unquoted Path
T1547.001 - Boot or Logon Autostart Execution: Registry Run Keys
T1574.008 - Hijack Execution Flow: DLL Search Order Hijacking
T1543.003 - Create or Modify System Process: Windows Service
T1134.003 - Access Token Manipulation: Make and Impersonate Token
T1053.005 - Scheduled Task/Job: Scheduled Task
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running TFTP Turbo 4.6.1273 across your infrastructure using asset discovery tools
2. Restrict local access to affected systems through access control lists and physical security measures
3. Monitor service startup and file system changes in TFTP installation directories
Patching Guidance:
1. Upgrade TFTP Turbo to version 4.6.1274 or later immediately
2. If immediate patching is not possible, uninstall TFTP Turbo if not operationally critical
3. Test patches in non-production environments before deployment
Compensating Controls:
1. Implement file integrity monitoring (FIM) on TFTP service directories
2. Use AppLocker or Windows Defender Application Control to restrict executable execution in service paths
3. Run TFTP service with minimal required privileges instead of LocalSystem where possible
4. Implement strict file permissions (NTFS ACLs) on service installation directories
5. Disable TFTP service if not actively required
Detection Rules:
1. Monitor for file creation/modification in TFTP installation directories with suspicious extensions (.exe, .dll, .bat, .ps1)
2. Alert on service startup failures followed by successful execution with elevated privileges
3. Track changes to service registry keys (HKLM\SYSTEM\CurrentControlSet\Services\)
4. Monitor for unquoted path exploitation patterns in Windows Event Viewer (Event ID 4688 - Process Creation)
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل TFTP Turbo 4.6.1273 عبر البنية التحتية باستخدام أدوات اكتشاف الأصول
2. تقييد الوصول المحلي للأنظمة المتأثرة من خلال قوائم التحكم في الوصول والتدابير الأمنية المادية
3. مراقبة بدء تشغيل الخدمة والتغييرات في نظام الملفات في أدلة تثبيت TFTP
إرشادات التصحيح:
1. ترقية TFTP Turbo إلى الإصدار 4.6.1274 أو أحدث على الفور
2. إذا لم يكن التصحيح الفوري ممكناً، قم بإلغاء تثبيت TFTP Turbo إذا لم تكن حرجة تشغيلياً
3. اختبر التصحيحات في بيئات غير الإنتاج قبل النشر
الضوابط البديلة:
1. تنفيذ مراقبة سلامة الملفات (FIM) على أدلة خدمة TFTP
2. استخدام AppLocker أو Windows Defender Application Control لتقييد تنفيذ الملفات القابلة للتنفيذ في مسارات الخدمة
3. تشغيل خدمة TFTP بأقل امتيازات مطلوبة بدلاً من LocalSystem حيث أمكن
4. تنفيذ أذونات ملفات صارمة (NTFS ACLs) على أدلة تثبيت الخدمة
5. تعطيل خدمة TFTP إذا لم تكن مطلوبة بنشاط
قواعد الكشف:
1. مراقبة إنشاء/تعديل الملفات في أدلة تثبيت TFTP بامتدادات مريبة (.exe, .dll, .bat, .ps1)
2. تنبيهات فشل بدء تشغيل الخدمة متبوعة بتنفيذ ناجح بامتيازات مرتفعة
3. تتبع التغييرات في مفاتيح سجل الخدمة (HKLM\SYSTEM\CurrentControlSet\Services\)
4. مراقبة أنماط استغلال المسار غير المقتبس في عارض أحداث Windows (معرف الحدث 4688 - إنشاء العملية)
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1: Access Control - Restrict local access and privilege escalation
ECC 2024 - 5.2.1: Cryptography and System Hardening - Implement application whitelisting
ECC 2024 - 6.1.1: Vulnerability Management - Patch management and vulnerability assessment
ECC 2024 - 6.2.1: Incident Response - Monitor and detect privilege escalation attempts
🔵 SAMA CSF
SAMA CSF - Governance & Risk Management: Identify and manage legacy system risks
SAMA CSF - Information Security: Implement access controls and privilege management
SAMA CSF - Operational Resilience: Maintain system availability while addressing vulnerabilities
SAMA CSF - Incident Management: Detect and respond to local privilege escalation attempts
🟡 ISO 27001:2022
ISO 27001:2022 - A.5.2: User access management - Control local access privileges
ISO 27001:2022 - A.5.3: Access control - Implement principle of least privilege
ISO 27001:2022 - A.8.1: Asset management - Maintain inventory of TFTP systems
ISO 27001:2022 - A.8.2: Configuration management - Secure service configurations
ISO 27001:2022 - A.12.2: Software and firmware updates - Apply security patches
🟣 PCI DSS v4.0.1
PCI DSS 3.2.1: Render PAN unreadable - Not directly applicable unless TFTP handles payment data
PCI DSS 6.2: Ensure security patches are installed - Patch TFTP Turbo immediately
PCI DSS 7.1: Limit access to system components - Restrict local access to TFTP systems
PCI DSS 11.2: Run vulnerability scans - Include TFTP systems in regular scanning