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Vulnerabilities

CVE-2021-38163

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
SAP NetWeaver Unrestricted File Upload Vulnerability — SAP NetWeaver contains a vulnerability that allows unrestricted file upload.
Published: Jun 9, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

SAP NetWeaver Unrestricted File Upload Vulnerability — SAP NetWeaver contains a vulnerability that allows unrestricted file upload.

🤖 AI Executive Summary

SAP NetWeaver contains a critical unrestricted file upload vulnerability (CVSS 9.0) that allows attackers to upload arbitrary files without proper validation. This vulnerability poses an immediate threat to Saudi organizations using SAP systems for enterprise resource planning, potentially enabling remote code execution and complete system compromise. Exploitation is straightforward with publicly available exploits, making immediate patching essential for all affected deployments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 04:55
🇸🇦 Saudi Arabia Impact Assessment
Critical impact on Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), and large enterprises using SAP for financial operations. ARAMCO and energy sector organizations face significant risk due to SAP ERP reliance. Telecom operators (STC, Mobily) and healthcare institutions using SAP systems are also vulnerable. Unrestricted file upload could lead to malware deployment, data exfiltration, and operational disruption across critical infrastructure.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Energy and Utilities Telecommunications Healthcare Manufacturing Retail and E-commerce
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all SAP NetWeaver instances in your environment and document versions
2. Restrict network access to SAP NetWeaver administrative interfaces using firewall rules
3. Implement Web Application Firewall (WAF) rules to block file upload requests to vulnerable endpoints
4. Enable comprehensive logging and monitoring of file upload activities
5. Review recent file uploads for suspicious or unauthorized files

PATCHING:
1. Apply SAP security patches immediately (SAP Note 3049563 and related updates)
2. Prioritize production systems and systems handling sensitive financial/operational data
3. Test patches in non-production environments first
4. Coordinate with SAP support for version-specific patch guidance

COMPENSATING CONTROLS:
1. Implement strict input validation and file type whitelisting at application level
2. Disable file upload functionality if not required for business operations
3. Store uploaded files outside web root directory
4. Implement antivirus scanning for all uploaded files
5. Use principle of least privilege for service accounts

DETECTION:
1. Monitor for HTTP POST/PUT requests to file upload endpoints
2. Alert on executable file uploads (.exe, .dll, .sh, .jsp, .asp)
3. Track file creation in SAP directories with suspicious extensions
4. Monitor for unusual process execution from SAP application directories
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع نوى SAP NetWeaver في بيئتك وتوثيق الإصدارات
2. تقييد الوصول إلى واجهات إدارة SAP NetWeaver باستخدام قواعد جدار الحماية
3. تطبيق قواعد جدار تطبيقات الويب لحظر طلبات تحميل الملفات إلى نقاط النهاية الضعيفة
4. تفعيل السجلات الشاملة ومراقبة أنشطة تحميل الملفات
5. مراجعة عمليات التحميل الأخيرة للملفات المريبة أو غير المصرح بها

التصحيح:
1. تطبيق تصحيحات أمان SAP فوراً (ملاحظة SAP 3049563 والتحديثات ذات الصلة)
2. إعطاء الأولوية لأنظمة الإنتاج والأنظمة التي تتعامل مع البيانات المالية/التشغيلية الحساسة
3. اختبار التصحيحات في بيئات غير الإنتاج أولاً
4. التنسيق مع دعم SAP للحصول على إرشادات التصحيح الخاصة بالإصدار

الضوابط البديلة:
1. تطبيق التحقق الصارم من المدخلات وقائمة بيضاء لأنواع الملفات على مستوى التطبيق
2. تعطيل وظيفة تحميل الملفات إذا لم تكن مطلوبة للعمليات التجارية
3. تخزين الملفات المحملة خارج دليل الويب الجذر
4. تطبيق فحص مكافحة الفيروسات لجميع الملفات المحملة
5. استخدام مبدأ أقل امتياز لحسابات الخدمة

الكشف:
1. مراقبة طلبات HTTP POST/PUT إلى نقاط نهاية تحميل الملفات
2. التنبيه على تحميل الملفات القابلة للتنفيذ
3. تتبع إنشاء الملفات في أدلة SAP بامتدادات مريبة
4. مراقبة تنفيذ العمليات غير العادية من أدلة تطبيقات SAP
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 - Information Security Policies and Procedures 5.2.1 - Access Control and Authentication 5.3.1 - Cryptography and Data Protection 5.4.1 - System and Communications Protection 5.5.1 - Incident Management
🔵 SAMA CSF
Governance - Risk Management Framework Protect - Access Control and Authentication Protect - Data Protection and Privacy Detect - Security Monitoring and Logging Respond - Incident Response Procedures
🟡 ISO 27001:2022
A.5.1 - Policies for information security A.6.1 - Internal organization A.8.1 - Asset management A.9.1 - Access control A.12.2 - Protection from malware A.14.2 - Software development
🟣 PCI DSS v4.0
Requirement 1 - Firewall configuration Requirement 6 - Secure development and vulnerability management Requirement 11 - Security testing and monitoring
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
SAP:NetWeaver
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS84.77%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-06-30
Published 2022-06-09
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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