📄 Description (English)
Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated characters and paste it into the account field to cause the application to become unresponsive and require reinstallation.
🤖 AI Executive Summary
Core FTP LE 2.2 contains a buffer overflow vulnerability (CVE-2020-37107) in the account field that allows unauthenticated attackers to cause denial of service by submitting oversized input. With a CVSS score of 7.5, this vulnerability can render FTP client applications unresponsive, requiring reinstallation and causing operational disruption. While no public exploit is currently available, the simplicity of the attack vector (text file manipulation) poses a moderate threat to organizations using this legacy FTP client.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 30, 2026 06:01
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using Core FTP LE 2.2 for file transfer operations face operational disruption risk, particularly in: (1) Government agencies and NCA-regulated entities managing secure file transfers; (2) Banking sector (SAMA-regulated) using legacy FTP for inter-bank communications; (3) Energy sector (ARAMCO, SEC) relying on FTP for operational technology file management; (4) Telecommunications (STC, Mobily) using FTP for network management; (5) Healthcare institutions transferring patient records. The impact is primarily availability-focused, affecting business continuity rather than data confidentiality.
🏢 Affected Saudi Sectors
Government
Banking
Energy
Telecommunications
Healthcare
Defense
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running Core FTP LE 2.2 across the organization
2. Restrict network access to FTP services using firewall rules (limit to trusted IP ranges)
3. Disable Core FTP LE 2.2 if alternative FTP clients are available
4. Implement input validation at network perimeter to detect oversized account field submissions
Patching Guidance:
1. Upgrade Core FTP LE to version 2.3 or later immediately
2. If upgrade is not possible, apply vendor security patches when available
3. Test patches in non-production environment before deployment
Compensating Controls:
1. Deploy network-based IDS/IPS rules to detect buffer overflow attempts (signatures for 20,000+ character submissions to FTP account fields)
2. Implement application-level monitoring to detect FTP client crashes and unresponsiveness
3. Maintain automated backup and recovery procedures for FTP configurations
4. Use SFTP (SSH File Transfer Protocol) as a secure alternative to legacy FTP
Detection Rules:
1. Monitor for FTP connections with unusually large account field payloads (>1000 characters)
2. Alert on Core FTP LE process crashes or unexpected terminations
3. Log all FTP account field modifications and flag suspicious patterns
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تعمل بـ Core FTP LE 2.2 في المنظمة
2. تقييد الوصول إلى خدمات FTP باستخدام قواعد جدار الحماية (تحديد نطاقات IP موثوقة)
3. تعطيل Core FTP LE 2.2 إذا كانت عملاء FTP بديلة متاحة
4. تطبيق التحقق من صحة الإدخال على محيط الشبكة للكشف عن عمليات الإرسال الكبيرة
إرشادات التصحيح:
1. ترقية Core FTP LE إلى الإصدار 2.3 أو أحدث فوراً
2. إذا لم يكن الترقية ممكنة، تطبيق تصحيحات الأمان من المورد عند توفرها
3. اختبار التصحيحات في بيئة غير الإنتاج قبل النشر
الضوابط البديلة:
1. نشر قواعد IDS/IPS على مستوى الشبكة للكشف عن محاولات تجاوز المخزن المؤقت
2. تطبيق المراقبة على مستوى التطبيق للكشف عن أعطال عميل FTP
3. الحفاظ على إجراءات النسخ الاحتياطي والاسترجاع الآلية
4. استخدام SFTP كبديل آمن لـ FTP القديم
قواعد الكشف:
1. مراقبة اتصالات FTP بحمولات حقل حساب كبيرة بشكل غير عادي
2. تنبيهات على أعطال عملية Core FTP LE
3. تسجيل جميع تعديلات حقل حساب FTP والإشارة إلى الأنماط المريبة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.12.2.1 - Change management procedures
ECC 2024 A.14.2.1 - Secure development policy
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset management and vulnerability identification
SAMA CSF PR.IP-12 - Software, firmware, and information integrity mechanisms
SAMA CSF DE.CM-8 - Vulnerability scans
🟡 ISO 27001:2022
ISO 27001:2022 A.12.2.1 - Change management
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure development policy
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure security patches are installed within defined timeframe
🔗 References & Sources 4