📄 Description (English)
Juniper ScreenOS Improper Authentication Vulnerability — Juniper ScreenOS contains an improper authentication vulnerability that could allow unauthorized remote administrative access to the device.
🤖 AI Executive Summary
CVE-2015-7755 is a critical improper authentication vulnerability in Juniper ScreenOS that allows unauthorized remote administrative access to affected devices via a hardcoded backdoor password. This vulnerability has a CVSS score of 9.0 and active exploits are publicly available, making it extremely dangerous for any organization still running vulnerable ScreenOS versions. The backdoor was discovered embedded in the authentication mechanism, allowing any attacker with network access to gain full administrative control over Juniper NetScreen firewalls. Organizations using legacy Juniper ScreenOS devices must treat this as an emergency requiring immediate action.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 4, 2026 18:14
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations that may still operate legacy Juniper NetScreen firewalls in their infrastructure. The government sector and NCA-regulated entities using older network perimeter devices are particularly at risk. Energy sector organizations including ARAMCO and its subsidiaries, telecom providers like STC, Mobily, and Zain, and banking institutions regulated by SAMA that may have legacy Juniper equipment in branch offices or remote sites face potential complete network compromise. Given that this is a backdoor allowing full administrative access, attackers could intercept VPN traffic, modify firewall rules, and pivot into internal networks — a catastrophic scenario for critical national infrastructure in Saudi Arabia.
🏢 Affected Saudi Sectors
Government
Banking
Energy
Telecommunications
Healthcare
Defense
Critical Infrastructure
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Juniper ScreenOS devices in your environment running ScreenOS 6.2.0r15 through 6.2.0r18 and 6.3.0r12 through 6.3.0r20
2. Apply Juniper's official patches immediately — upgrade to ScreenOS 6.2.0r19 or 6.3.0r21 or later
3. If patching is not immediately possible, restrict SSH and Telnet management access to trusted management networks only using ACLs
4. Block remote administrative access from the internet immediately
DETECTION:
5. Monitor authentication logs for successful logins using the backdoor password (search for username 'system' with unusual login patterns)
6. Review all administrative sessions and configuration changes for signs of unauthorized access
7. Implement IDS/IPS signatures to detect exploitation attempts (Snort SID available)
8. Audit VPN configurations for unauthorized modifications
LONG-TERM:
9. Plan migration away from ScreenOS to Juniper SRX (Junos OS) or equivalent modern firewall platforms
10. Implement multi-factor authentication for all network device administrative access
11. Conduct forensic analysis on any exposed devices to determine if compromise occurred
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Juniper ScreenOS في بيئتك التي تعمل بإصدارات ScreenOS 6.2.0r15 إلى 6.2.0r18 و 6.3.0r12 إلى 6.3.0r20
2. تطبيق تصحيحات Juniper الرسمية فوراً — الترقية إلى ScreenOS 6.2.0r19 أو 6.3.0r21 أو أحدث
3. إذا لم يكن التصحيح ممكناً فوراً، قم بتقييد وصول إدارة SSH و Telnet إلى شبكات الإدارة الموثوقة فقط باستخدام قوائم التحكم في الوصول
4. حظر الوصول الإداري عن بُعد من الإنترنت فوراً
الكشف:
5. مراقبة سجلات المصادقة لعمليات تسجيل الدخول الناجحة باستخدام كلمة المرور الخلفية (البحث عن اسم المستخدم 'system' مع أنماط تسجيل دخول غير عادية)
6. مراجعة جميع الجلسات الإدارية وتغييرات التكوين بحثاً عن علامات الوصول غير المصرح به
7. تنفيذ توقيعات IDS/IPS للكشف عن محاولات الاستغلال
8. تدقيق تكوينات VPN للتعديلات غير المصرح بها
على المدى الطويل:
9. التخطيط للانتقال من ScreenOS إلى Juniper SRX (Junos OS) أو منصات جدران حماية حديثة مكافئة
10. تنفيذ المصادقة متعددة العوامل لجميع عمليات الوصول الإداري لأجهزة الشبكة
11. إجراء تحليل جنائي على أي أجهزة معرضة لتحديد ما إذا كان قد حدث اختراق
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-2:3-1 (Access Control)
ECC-2:3-2 (Authentication)
ECC-2:5-1 (Network Security)
ECC-2:4-1 (Patch Management)
ECC-2:6-1 (Vulnerability Management)
🔵 SAMA CSF
3.3.3 (Access Control)
3.3.4 (Network Security)
3.3.7 (Patch Management)
3.3.11 (Vulnerability Management)
3.4.1 (Incident Management)
🟡 ISO 27001:2022
A.8.9 (Configuration Management)
A.8.8 (Management of Technical Vulnerabilities)
A.8.20 (Network Security)
A.8.5 (Secure Authentication)
A.5.7 (Threat Intelligence)
🟣 PCI DSS v4.0
Requirement 2.2 (System Configuration Standards)
Requirement 6.3.3 (Patch Management)
Requirement 8.3 (Strong Authentication)
Requirement 1.2 (Firewall Configuration)
Requirement 11.4 (Intrusion Detection)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Juniper:ScreenOS