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Vulnerabilities

CVE-2026-48694

High
CWE-77 — Weakness Type
Published: May 26, 2026  ·  Modified: Jun 2, 2026  ·  Source: NVD
CVSS v3
8.1
🔗 NVD Official
📄 Description (English)

FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniper_plugin/fastnetmon_juniper.php, the $IP_ATTACK variable (received from argv[1]) is directly interpolated into Juniper NETCONF set-configuration commands at lines 69 and 90 without any validation or sanitization. Line 69: $conn->load_set_configuration("set routing-options static route {$IP_ATTACK} community 65535:666 discard"). Line 90: $conn->load_set_configuration("delete routing-options static route {$IP_ATTACK}/32"). An attacker who can control the IP address string can inject additional Juniper CLI configuration commands by embedding newline characters followed by arbitrary set/delete commands. This could modify the router's routing table, firewall filters, user accounts, or any other configuration element accessible via NETCONF. The impact is full router compromise.

🤖 AI Executive Summary

FastNetMon Community Edition versions through 1.2.9 contain a critical configuration injection vulnerability in the Juniper router integration plugin that allows unauthenticated attackers to inject arbitrary NETCONF commands by manipulating IP address parameters. An attacker exploiting this vulnerability can achieve full router compromise, including modification of routing tables, firewall rules, and user accounts. This vulnerability poses an immediate threat to organizations using FastNetMon for DDoS mitigation in conjunction with Juniper routers, particularly in critical infrastructure environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 31, 2026 06:36
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi organizations operating network infrastructure, particularly: (1) ARAMCO and energy sector operators using FastNetMon with Juniper routers for DDoS protection—full router compromise could disrupt critical energy distribution; (2) SAMA-regulated financial institutions and banks relying on Juniper-based network security for payment systems and critical banking infrastructure; (3) Government entities (NCA, NCSC) and critical infrastructure operators using FastNetMon for network defense; (4) Telecom operators (STC, Mobily, Zain) managing backbone routing infrastructure; (5) Data centers and cloud providers hosting Saudi government and enterprise services. The lack of available patches combined with no exploit availability window creates urgent remediation pressure.
🏢 Affected Saudi Sectors
Energy & Utilities (ARAMCO, power distribution) Banking & Financial Services (SAMA-regulated institutions) Government & Critical Infrastructure (NCA, NCSC) Telecommunications (STC, Mobily, Zain) Data Centers & Cloud Providers Healthcare (SEHA, private hospitals) Transportation & Logistics
⚖️ Saudi Risk Score (AI)
8.7
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all FastNetMon Community Edition deployments (versions ≤1.2.9) integrated with Juniper routers in your environment
2. Implement network segmentation to restrict access to FastNetMon management interfaces—limit to authorized administrative networks only
3. Disable the Juniper router integration plugin if not actively required for operations
4. Implement strict input validation at the application layer before FastNetMon processes IP addresses

PATCHING GUIDANCE:
1. Contact Pavel Odintsov/FastNetMon development team for patch availability timeline
2. Evaluate migration to alternative DDoS mitigation solutions with better security posture
3. If upgrade available, test thoroughly in non-production environment before deployment

COMPENSATING CONTROLS (until patch available):
1. Implement Web Application Firewall (WAF) rules to detect and block newline characters and NETCONF command syntax in IP address parameters
2. Deploy network-based IDS/IPS signatures to detect NETCONF injection attempts
3. Restrict FastNetMon process privileges—run with minimal required permissions
4. Implement strict RBAC on Juniper router NETCONF access—limit FastNetMon service account to read-only or specific command whitelist
5. Enable comprehensive audit logging on Juniper routers for all configuration changes
6. Implement out-of-band management access to Juniper routers for emergency recovery

DETECTION RULES:
1. Monitor FastNetMon logs for argv[1] parameters containing newline characters (\n, \r, %0a, %0d)
2. Alert on NETCONF set-configuration commands from FastNetMon service account containing unexpected command sequences
3. Monitor Juniper router configuration change logs for modifications originating from FastNetMon service accounts
4. Detect multiple rapid configuration changes within short time windows from FastNetMon integration
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع نشرات FastNetMon Community Edition (الإصدارات ≤1.2.9) المدمجة مع أجهزة توجيه Juniper في بيئتك
2. تنفيذ تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة FastNetMon—حصر الوصول على الشبكات الإدارية المصرح بها فقط
3. تعطيل مكون تكامل جهاز توجيه Juniper إذا لم يكن مطلوباً بنشاط للعمليات
4. تنفيذ التحقق الصارم من صحة الإدخال على مستوى التطبيق قبل معالجة FastNetMon لعناوين IP

إرشادات التصحيح:
1. الاتصال بفريق تطوير Pavel Odintsov/FastNetMon للحصول على الجدول الزمني لتوفر التصحيح
2. تقييم الترقية إلى حلول تخفيف DDoS بديلة بموقف أمني أفضل
3. إذا كان التحديث متاحاً، اختبر بعناية في بيئة غير الإنتاج قبل النشر

الضوابط التعويضية (حتى توفر التصحيح):
1. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أحرف السطر الجديد وحقن بناء جملة NETCONF
2. نشر توقيعات IDS/IPS المستندة إلى الشبكة للكشف عن محاولات حقن NETCONF
3. تقييد امتيازات عملية FastNetMon—التشغيل بأقل الأذونات المطلوبة
4. تنفيذ RBAC صارم على وصول NETCONF لجهاز توجيه Juniper—حصر حساب خدمة FastNetMon على القراءة فقط أو قائمة بيضاء للأوامر المحددة
5. تمكين تسجيل التدقيق الشامل على أجهزة توجيه Juniper لجميع تغييرات التكوين
6. تنفيذ وصول الإدارة خارج النطاق إلى أجهزة توجيه Juniper للاسترجاع في حالات الطوارئ

قواعد الكشف:
1. مراقبة سجلات FastNetMon لمعاملات argv[1] تحتوي على أحرف سطر جديد (\n, \r, %0a, %0d)
2. التنبيه على أوامر NETCONF set-configuration من حساب خدمة FastNetMon تحتوي على تسلسلات أوامر غير متوقعة
3. مراقبة سجلات تغيير تكوين جهاز توجيه Juniper للتعديلات الناشئة من حسابات خدمة FastNetMon
4. الكشف عن تغييرات تكوين متعددة سريعة في نوافذ زمنية قصيرة من تكامل FastNetMon
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Network security controls and access management ECC 2024 A.5.2.1 - Configuration management and change control ECC 2024 A.5.3.1 - Vulnerability management and patch management ECC 2024 A.6.1.1 - Incident detection and response capabilities
🔵 SAMA CSF
SAMA CSF ID.GV-1 - Organizational context and governance SAMA CSF PR.AC-1 - Access control and authentication SAMA CSF PR.IP-1 - Information protection processes and procedures SAMA CSF DE.CM-1 - Detection and monitoring capabilities
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access control ISO 27001:2022 A.5.16 - Cryptography ISO 27001:2022 A.5.23 - Information security for supplier relationships ISO 27001:2022 A.8.1 - User endpoint devices ISO 27001:2022 A.8.2 - Privileged access rights
🟣 PCI DSS v4.0.1
PCI DSS 1.1 - Firewall configuration standards PCI DSS 2.1 - Default security parameters PCI DSS 6.2 - Security patches and updates PCI DSS 10.2 - User access logging and monitoring
📦 Affected Products / CPE 1 entries
pavel-odintsov:fastnetmon
📊 CVSS Score
8.1
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityN — None / Network
📋 Quick Facts
Severity High
CVSS Score8.1
CWECWE-77
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-05-26
Source Feed nvd
🇸🇦 Saudi Risk Score
8.7
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-77
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