📄 Description (English)
Endian Firewall version 3.3.25 and prior allow authenticated users to execute arbitrary OS commands via the DATE parameter to /cgi-bin/logs_ids.cgi. The DATE parameter value is used to construct a file path that is passed to a Perl open() call, which allows command injection due to an incomplete regular expression validation.
🤖 AI Executive Summary
Endian Firewall versions 3.3.25 and prior contain a critical command injection vulnerability in the logs_ids.cgi module that allows authenticated users to execute arbitrary OS commands via the DATE parameter. The vulnerability exploits incomplete regex validation in Perl's open() function, enabling attackers with valid credentials to gain full system control. This poses significant risk to Saudi organizations using Endian Firewall as perimeter security, particularly in banking and government sectors where firewall compromise could lead to lateral movement and data exfiltration.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 23, 2026 07:32
🇸🇦 Saudi Arabia Impact Assessment
Banking sector (SAMA-regulated institutions, payment processors) faces critical risk as firewall compromise enables access to financial transaction systems and customer data. Government agencies and NCA-regulated entities using Endian Firewall for network perimeter defense could experience unauthorized access to classified networks and critical infrastructure. Energy sector (ARAMCO, power utilities) dependent on Endian Firewall for OT/IT segmentation faces operational technology compromise. Telecom operators (STC, Mobily) using Endian for DDoS mitigation and traffic filtering could experience service disruption. Healthcare organizations relying on Endian for HIPAA-equivalent data protection face patient data exposure. The vulnerability is particularly dangerous because it requires only valid authentication (insider threat or compromised credentials), which are common in Saudi organizations.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Critical Infrastructure (Energy, Water, Utilities)
Telecommunications
Healthcare
Defense and Security
Oil and Gas (ARAMCO subsidiaries)
🎯 MITRE ATT&CK Techniques
T1190 - Exploit Public-Facing Application (logs_ids.cgi is web-accessible)
T1059 - Command and Scripting Interpreter (arbitrary OS command execution)
T1078 - Valid Accounts (requires authenticated access)
T1021 - Remote Service Session Initiation (firewall compromise for lateral movement)
T1552 - Unsecured Credentials (potential access to firewall configuration with credentials)
T1005 - Data from Local System (exfiltration of firewall logs and configuration)
T1070 - Indicator Removal (log tampering via command injection)
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Endian Firewall instances running version 3.3.25 or earlier in your environment
2. Restrict administrative access to /cgi-bin/logs_ids.cgi to trusted IP addresses only via firewall rules
3. Implement network segmentation to isolate firewall management interfaces
4. Review authentication logs for suspicious access patterns to logs_ids.cgi
5. Monitor for command injection patterns in firewall logs (shell metacharacters in DATE parameter)
PATCHING GUIDANCE:
1. Contact Endian support immediately to request security patches or upgrade timeline
2. If no patch is available, plan immediate upgrade to latest Endian Firewall version
3. Test patches in isolated lab environment before production deployment
4. Coordinate with SAMA/NCA for critical infrastructure notification if applicable
COMPENSATING CONTROLS (if patching delayed):
1. Implement Web Application Firewall (WAF) rules to block requests with shell metacharacters (|, ;, &, $, `, >, <) in DATE parameter
2. Disable CGI access to logs_ids.cgi if functionality not required
3. Implement strict input validation at network edge: whitelist only valid date formats (YYYY-MM-DD)
4. Deploy intrusion detection signatures for command injection attempts
5. Enforce multi-factor authentication for firewall administrative access
6. Implement privileged access management (PAM) for firewall admin accounts
DETECTION RULES:
1. Alert on HTTP requests to /cgi-bin/logs_ids.cgi containing: pipe (|), semicolon (;), backtick (`), dollar sign ($), ampersand (&), or newline characters in DATE parameter
2. Monitor for Endian Firewall process spawning unexpected child processes (bash, sh, perl)
3. Alert on file access patterns from Endian Firewall process to /etc/passwd, /etc/shadow, or system binaries
4. Detect unusual outbound connections from Endian Firewall management interface
5. Monitor syslog for Perl errors or warnings from logs_ids.cgi execution
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع مثيلات Endian Firewall التي تعمل بالإصدار 3.3.25 أو الإصدارات السابقة في بيئتك
2. تقييد الوصول الإداري إلى /cgi-bin/logs_ids.cgi إلى عناوين IP موثوقة فقط عبر قواعد جدار الحماية
3. تنفيذ تقسيم الشبكة لعزل واجهات إدارة جدار الحماية
4. مراجعة سجلات المصادقة للبحث عن أنماط وصول مريبة إلى logs_ids.cgi
5. مراقبة أنماط حقن الأوامر في سجلات جدار الحماية (أحرف shell في معامل DATE)
إرشادات التصحيح:
1. اتصل بدعم Endian على الفور لطلب تصحيحات أمان أو جدول زمني للترقية
2. إذا لم يكن هناك تصحيح متاح، خطط للترقية الفورية إلى أحدث إصدار من Endian Firewall
3. اختبر التصحيحات في بيئة معملية معزولة قبل نشر الإنتاج
4. تنسيق مع SAMA/NCA لإخطار البنية التحتية الحرجة إن أمكن
الضوابط البديلة (إذا تأخر التصحيح):
1. تنفيذ قواعد جدار تطبيقات الويب (WAF) لحظر الطلبات التي تحتوي على أحرف shell (|، ;، &، $، `، >، <) في معامل DATE
2. تعطيل وصول CGI إلى logs_ids.cgi إذا لم تكن الوظيفة مطلوبة
3. تنفيذ التحقق من صحة الإدخال الصارم على حافة الشبكة: قائمة بيضاء بصيغ التاريخ الصحيحة فقط (YYYY-MM-DD)
4. نشر توقيعات كشف الاختراق لمحاولات حقن الأوامر
5. فرض المصادقة متعددة العوامل لوصول إدارة جدار الحماية
6. تنفيذ إدارة الوصول المميز (PAM) لحسابات مسؤول جدار الحماية
قواعد الكشف:
1. تنبيه على طلبات HTTP إلى /cgi-bin/logs_ids.cgi تحتوي على: أنبوب (|)، فاصلة منقوطة (;)، علامة خلفية (`)، علامة دولار ($)، علامة العطف (&)، أو أحرف سطر جديد في معامل DATE
2. مراقبة عمليات Endian Firewall التي تولد عمليات فرعية غير متوقعة (bash، sh، perl)
3. تنبيه على أنماط الوصول إلى الملفات من عملية Endian Firewall إلى /etc/passwd أو /etc/shadow أو ثنائيات النظام
4. كشف الاتصالات الصادرة غير العادية من واجهة إدارة Endian Firewall
5. مراقبة syslog لأخطاء Perl أو تحذيرات من تنفيذ logs_ids.cgi
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies and Procedures (firewall security controls)
A.6.1.1 - Organization of Information Security (access control to security appliances)
A.7.1.1 - Access Control (authentication and authorization for firewall management)
A.12.4.1 - Logging and Monitoring (detection of unauthorized firewall access)
A.14.2.1 - System Development and Maintenance (secure coding practices for CGI scripts)
🔵 SAMA CSF
ID.AM-2: Hardware and software assets are inventoried (Endian Firewall version tracking)
PR.AC-1: Identities and credentials are issued and managed (firewall admin access control)
PR.AC-4: Access is managed based on the principle of least privilege (restrict logs_ids.cgi access)
DE.CM-1: The network is monitored to detect potential cybersecurity events (CGI injection detection)
RS.MI-2: Incidents are mitigated (firewall compromise response procedures)
🟡 ISO 27001:2022
A.5.1 - Management direction for information security (security policy for firewall management)
A.6.1 - Organization of information security (roles and responsibilities for firewall security)
A.7.1 - Access control (user access management to firewall interfaces)
A.8.1 - Cryptography (secure communication for firewall management)
A.12.4 - Logging and monitoring (detection and logging of unauthorized access attempts)
A.14.2 - Security in development and support processes (secure coding for CGI applications)
🟣 PCI DSS v4.0.1
Requirement 1.1 - Firewall configuration standards (Endian Firewall security hardening)
Requirement 2.1 - Default security parameters (disable unnecessary CGI modules)
Requirement 6.2 - Security patches and updates (timely patching of Endian Firewall)
Requirement 8.1 - User identification and authentication (firewall admin access control)
Requirement 10.2 - Logging of user access (audit logs for firewall management access)
📦 Affected Products / CPE 1 entries
endian:firewall_community