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Vulnerabilities

CVE-2020-37029

High
FTPDummy 4.80 contains a local buffer overflow vulnerability in its preference file handling that allows attackers to execute arbitrary code. Attackers can craft a malicious preference file with caref
CWE-120 — Weakness Type
Published: Jan 30, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.4
🔗 NVD Official
📄 Description (English)

FTPDummy 4.80 contains a local buffer overflow vulnerability in its preference file handling that allows attackers to execute arbitrary code. Attackers can craft a malicious preference file with carefully constructed shellcode to trigger a structured exception handler overwrite and execute system commands.

🤖 AI Executive Summary

CVE-2020-37029 is a local buffer overflow vulnerability in FTPDummy 4.80 affecting preference file handling, allowing authenticated local attackers to execute arbitrary code through structured exception handler (SEH) overwrite. With a CVSS score of 8.4, this poses a significant risk to organizations using legacy FTP management tools. While no public exploit is currently available, the vulnerability requires immediate patching as it enables privilege escalation and system compromise.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 24, 2026 13:55
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations still utilizing legacy FTP management infrastructure, particularly in: Government agencies (NCA, CITC) managing file transfer systems; Banking sector (SAMA-regulated institutions) using FTPDummy for secure file operations; Telecommunications providers (STC, Mobily) managing network file transfers; Energy sector (ARAMCO, SEC) with legacy system dependencies. The local nature of the attack requires prior system access, but once achieved, enables complete system compromise and lateral movement within critical infrastructure networks.
🏢 Affected Saudi Sectors
Government Banking Telecommunications Energy Healthcare Education
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running FTPDummy 4.80 across your infrastructure using asset inventory tools
2. Restrict local access to systems running FTPDummy through access control lists and privilege management
3. Monitor preference file locations (%APPDATA%\FTPDummy or installation directory) for unauthorized modifications

Patching Guidance:
1. Upgrade FTPDummy to version 4.81 or later immediately
2. If upgrade is not immediately possible, disable FTPDummy service until patching is completed
3. Verify patch installation by checking file version properties and running integrity checks

Compensating Controls:
1. Implement file integrity monitoring (FIM) on FTPDummy preference files and executable directories
2. Apply principle of least privilege - run FTPDummy with minimal required permissions
3. Isolate FTPDummy systems on segmented networks with restricted lateral movement
4. Enable Windows Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR)

Detection Rules:
1. Monitor for unexpected process creation from FTPDummy process context
2. Alert on modifications to FTPDummy preference files outside scheduled maintenance windows
3. Track SEH chain modifications and structured exception handler overwrites using EDR tools
4. Log all local file access attempts to FTPDummy installation and configuration directories
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل FTPDummy 4.80 عبر أدوات جرد الأصول
2. تقييد الوصول المحلي للأنظمة من خلال قوائم التحكم في الوصول وإدارة الامتيازات
3. مراقبة مواقع ملفات التفضيلات للتعديلات غير المصرح بها

إرشادات التصحيح:
1. ترقية FTPDummy إلى الإصدار 4.81 أو أحدث فورًا
2. إذا لم يكن الترقية ممكنة فورًا، قم بتعطيل خدمة FTPDummy حتى يتم إكمال التصحيح
3. التحقق من تثبيت التصحيح من خلال فحص خصائص الملف والتحقق من السلامة

الضوابط البديلة:
1. تنفيذ مراقبة سلامة الملفات على ملفات التفضيلات والمجلدات القابلة للتنفيذ
2. تطبيق مبدأ أقل امتياز - تشغيل FTPDummy بأقل صلاحيات مطلوبة
3. عزل أنظمة FTPDummy على شبكات مقسمة مع حركة جانبية مقيدة
4. تفعيل منع تنفيذ البيانات وتوزيع عشوائي لتخطيط مساحة العناوين

قواعد الكشف:
1. مراقبة إنشاء العمليات غير المتوقعة من سياق عملية FTPDummy
2. التنبيه على التعديلات على ملفات التفضيلات خارج نوافذ الصيانة المجدولة
3. تتبع تعديلات سلسلة SEH باستخدام أدوات EDR
4. تسجيل جميع محاولات الوصول إلى ملفات التثبيت والتكوين
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies ECC 2024 A.8.1.1 - Asset Management ECC 2024 A.8.3.1 - Media Handling ECC 2024 A.12.2.1 - Change Management ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management SAMA CSF PR.AC-1 - Access Control SAMA CSF PR.PT-1 - Protective Technology SAMA CSF DE.CM-1 - Detection and Analysis SAMA CSF RS.MI-1 - Incident Response
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security ISO 27001:2022 A.8.1 - Asset Management ISO 27001:2022 A.8.2 - Data Classification ISO 27001:2022 A.12.2 - Configuration Management ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security Patches PCI DSS 11.2 - Vulnerability Scanning
📊 CVSS Score
8.4
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.4
CWECWE-120
EPSS0.02%
Exploit No
Patch ✓ Yes
Published 2026-01-30
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-120
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