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Vulnerabilities

CVE-2018-25256

Medium
CWE-787 — Weakness Type
Published: Apr 5, 2026  ·  Modified: Apr 8, 2026  ·  Source: NVD
CVSS v3
5.5
🔗 NVD Official
📄 Description (English)

IP TOOLS 2.50 contains a local buffer overflow vulnerability in the SNMP Scanner component that allows local attackers to crash the application by supplying oversized input. Attackers can paste malicious data into the 'From Addr' and 'To Addr' fields and trigger the crash by clicking the Start button, causing denial of service and SEH overwrite.

🤖 AI Executive Summary

CVE-2018-25256 is a local buffer overflow vulnerability in IP TOOLS 2.50's SNMP Scanner component that allows local attackers to cause denial of service through SEH overwrite by supplying oversized input in address fields. While the CVSS score is moderate (5.5), the lack of available patches and exploit code presents a sustained risk for organizations still using this legacy tool. The vulnerability requires local access, limiting remote exploitation but posing significant risk in shared or compromised environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 25, 2026 03:00
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using legacy IP TOOLS 2.50 for network diagnostics and SNMP scanning face denial of service risks, particularly in: (1) Government agencies and NCA infrastructure relying on older network management tools; (2) Banking sector (SAMA-regulated) using legacy network monitoring; (3) Telecommunications operators (STC, Mobily) managing legacy network infrastructure; (4) Energy sector (ARAMCO, SEC) with legacy SCADA/network monitoring systems. The impact is primarily availability-focused (DoS), but SEH overwrite capability could enable privilege escalation in multi-user environments or shared administrative workstations.
🏢 Affected Saudi Sectors
Government Banking Telecommunications Energy Healthcare Critical Infrastructure
⚖️ Saudi Risk Score (AI)
5.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all systems running IP TOOLS 2.50 and document SNMP Scanner usage
2. Restrict local access to systems running this tool through access controls and user privilege management
3. Disable SNMP Scanner functionality if not actively required
4. Implement application whitelisting to prevent unauthorized execution

Patching Guidance:
- No official patch is available; upgrade to a newer version of IP TOOLS or replace with modern alternatives (e.g., Nmap, Zabbix, PRTG)
- If upgrade is not immediately feasible, apply compensating controls

Compensating Controls:
1. Implement strict input validation at the application level if source code access is available
2. Run IP TOOLS in a sandboxed environment or virtual machine with limited privileges
3. Monitor for abnormal process termination and SEH-related exceptions using Windows Event Viewer
4. Restrict network access to SNMP services using firewall rules
5. Apply Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR) at OS level

Detection Rules:
- Monitor for application crashes with event ID 1000 (Application Error) related to IP TOOLS
- Alert on SEH overwrite attempts in memory dumps
- Track failed SNMP Scanner operations with oversized input parameters
- Monitor for unusual process termination patterns in administrative tools
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع الأنظمة التي تعمل بـ IP TOOLS 2.50 وتوثيق استخدام SNMP Scanner
2. تقييد الوصول المحلي للأنظمة التي تعمل بهذه الأداة من خلال عناصر التحكم في الوصول وإدارة امتيازات المستخدم
3. تعطيل وظيفة SNMP Scanner إذا لم تكن مطلوبة بنشاط
4. تطبيق القائمة البيضاء للتطبيقات لمنع التنفيذ غير المصرح به

إرشادات التصحيح:
- لا يتوفر تصحيح رسمي؛ قم بالترقية إلى إصدار أحدث من IP TOOLS أو استبدله بدائل حديثة (مثل Nmap أو Zabbix أو PRTG)
- إذا لم تكن الترقية ممكنة على الفور، طبق عناصر تحكم تعويضية

عناصر التحكم التعويضية:
1. تطبيق التحقق الصارم من المدخلات على مستوى التطبيق إذا كان الوصول إلى الكود المصدري متاحاً
2. تشغيل IP TOOLS في بيئة معزولة أو جهاز افتراضي بامتيازات محدودة
3. مراقبة إنهاء العملية غير الطبيعي واستثناءات SEH باستخدام عارض أحداث Windows
4. تقييد الوصول إلى خدمات SNMP باستخدام قواعد جدار الحماية
5. تطبيق منع تنفيذ البيانات (DEP) وعشوائية تخطيط مساحة العناوين (ASLR) على مستوى نظام التشغيل

قواعد الكشف:
- مراقبة أعطال التطبيقات مع معرف الحدث 1000 (خطأ التطبيق) المتعلق بـ IP TOOLS
- تنبيه محاولات الكتابة فوق SEH في تفريغ الذاكرة
- تتبع عمليات SNMP Scanner الفاشلة مع معاملات إدخال مفرطة الحجم
- مراقبة أنماط إنهاء العملية غير العادية في الأدوات الإدارية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.14.2.1 - Secure development policy ECC 2024 A.12.2.1 - Monitoring and logging of access
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory SAMA CSF PR.DS-6 - Data security and integrity SAMA CSF DE.CM-1 - Detection and monitoring
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Secure development policy ISO 27001:2022 A.8.1.1 - Inventory of assets
📊 CVSS Score
5.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score5.5
CWECWE-787
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-04-05
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
5.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-787
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