📄 Description (English)
HNB Organizer 1.9.18-10 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -rc command-line parameter. Attackers can craft a malicious input string exceeding 108 bytes containing shellcode and a return address to overwrite the stack and achieve code execution.
🤖 AI Executive Summary
CVE-2016-20045 is a local buffer overflow vulnerability in HNB Organizer 1.9.18-10 that allows authenticated local attackers to execute arbitrary code through oversized command-line arguments to the -rc parameter. With a CVSS score of 8.4, this vulnerability poses a significant risk to systems where untrusted users have local access. No patch is currently available, requiring immediate compensating controls and monitoring.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 24, 2026 04:54
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily affects Saudi government agencies, research institutions, and enterprises using HNB Organizer for personal information management. High-risk sectors include: Government (NCA, NCSC) systems where local user access is prevalent; Financial institutions (SAMA-regulated banks) with multi-user workstations; Healthcare organizations (MOH) managing sensitive patient data; and Educational institutions. The local-only attack vector limits exposure but poses critical risk in shared computing environments common in Saudi government and corporate settings.
🏢 Affected Saudi Sectors
Government
Financial Services
Healthcare
Education
Research Institutions
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all systems running HNB Organizer 1.9.18-10 and document user access patterns
2. Restrict local user access to systems running HNB Organizer using principle of least privilege
3. Disable or remove HNB Organizer if not actively required for business operations
4. Implement application whitelisting to prevent unauthorized execution
Compensating Controls:
1. Apply strict file system permissions to HNB Organizer executable and configuration directories (chmod 750 or equivalent)
2. Monitor process execution logs for HNB Organizer invocations with unusual command-line arguments
3. Implement AppArmor or SELinux profiles to restrict HNB Organizer capabilities
4. Use endpoint detection and response (EDR) tools to monitor for stack-based code execution patterns
5. Enforce code signing verification for all HNB Organizer binaries
Detection Rules:
1. Alert on HNB Organizer process execution with -rc parameter containing arguments >108 bytes
2. Monitor for abnormal child process spawning from HNB Organizer
3. Track stack memory access violations and segmentation faults from HNB Organizer
4. Log all local user privilege escalation attempts following HNB Organizer execution
Long-term:
1. Migrate to alternative, actively maintained personal information management solutions
2. Evaluate vendor security posture before adopting similar tools
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حصر جميع الأنظمة التي تعمل بـ HNB Organizer 1.9.18-10 وتوثيق أنماط وصول المستخدمين
2. تقييد وصول المستخدمين المحليين إلى الأنظمة التي تعمل بـ HNB Organizer باستخدام مبدأ أقل صلاحية
3. تعطيل أو إزالة HNB Organizer إذا لم يكن مطلوباً بنشاط للعمليات التجارية
4. تطبيق قائمة بيضاء للتطبيقات لمنع التنفيذ غير المصرح به
الضوابط التعويضية:
1. تطبيق أذونات نظام الملفات الصارمة على ملف HNB Organizer القابل للتنفيذ ومجلدات التكوين
2. مراقبة سجلات تنفيذ العمليات لاستدعاءات HNB Organizer بمعاملات سطر أوامر غير عادية
3. تطبيق ملفات تعريف AppArmor أو SELinux لتقييد قدرات HNB Organizer
4. استخدام أدوات الكشف والاستجابة للنقاط النهائية (EDR) لمراقبة أنماط تنفيذ الكود القائمة على المكدس
5. فرض التحقق من التوقيع الرقمي لجميع ملفات HNB Organizer القابلة للتنفيذ
قواعد الكشف:
1. تنبيه عند تنفيذ عملية HNB Organizer بمعامل -rc يحتوي على معاملات >108 بايت
2. مراقبة توليد العمليات الفرعية غير الطبيعية من HNB Organizer
3. تتبع انتهاكات وصول ذاكرة المكدس وأخطاء التجزئة من HNB Organizer
4. تسجيل جميع محاولات تصعيد امتيازات المستخدمين المحليين بعد تنفيذ HNB Organizer
المدى الطويل:
1. الهجرة إلى حلول بديلة لإدارة المعلومات الشخصية يتم صيانتها بنشاط
2. تقييم موقف أمان البائع قبل اعتماد أدوات مماثلة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies (local user access restrictions)
ECC 2024 A.8.1.1 - User Endpoint Devices (application whitelisting and monitoring)
ECC 2024 A.8.2.1 - Privileged Access Rights (principle of least privilege enforcement)
ECC 2024 A.8.3.1 - Information Access Restriction (file system permissions)
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Asset Management (inventory HNB Organizer installations)
SAMA CSF PR.AC-1 - Access Control (restrict local user access)
SAMA CSF PR.AC-4 - Access Management (enforce least privilege)
SAMA CSF DE.CM-1 - Detection Processes (monitor for exploitation attempts)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control (local access restrictions)
ISO 27001:2022 A.8.1 - User Endpoint Devices (application control and monitoring)
ISO 27001:2022 A.8.2 - Privileged Access Rights (least privilege principle)
ISO 27001:2022 A.8.22 - Information Security Incident Management (detection and response)