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Vulnerabilities

CVE-2022-1040

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Sophos Firewall Authentication Bypass Vulnerability — An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution.
Published: Mar 31, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Sophos Firewall Authentication Bypass Vulnerability — An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution.

🤖 AI Executive Summary

CVE-2022-1040 is a critical authentication bypass vulnerability in Sophos Firewall affecting both User Portal and Webadmin interfaces, enabling unauthenticated remote code execution. With a CVSS score of 9.0 and publicly available exploits, this poses an immediate threat to organizations relying on Sophos Firewall for perimeter security. Urgent patching is required across all affected Sophos Firewall deployments in Saudi Arabia.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 13:26
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses critical risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), telecommunications providers (STC, Mobily), energy sector (ARAMCO, SEC), and healthcare organizations. Sophos Firewall is widely deployed as perimeter security in these sectors. Successful exploitation enables complete compromise of network infrastructure, lateral movement into internal systems, and potential data exfiltration of sensitive national and financial data.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Energy and Utilities Healthcare Critical Infrastructure
⚖️ Saudi Risk Score (AI)
9.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Sophos Firewall instances in your environment and document versions
2. Isolate or restrict external access to affected Sophos Firewall User Portal and Webadmin interfaces immediately
3. Enable enhanced logging and monitoring on all Sophos Firewall instances
4. Review firewall logs for suspicious authentication attempts or anomalous access patterns

PATCHING:
1. Apply Sophos Firewall security patches immediately (v18.5.4, v19.0.3, v19.5.1 or later)
2. Test patches in non-production environment first
3. Schedule emergency patching windows for production systems
4. Verify patch application and restart firewall services

COMPENSATING CONTROLS (if patching delayed):
1. Restrict network access to Webadmin and User Portal to trusted IP ranges only
2. Implement WAF rules to block suspicious authentication requests
3. Disable User Portal and Webadmin if not actively required
4. Deploy network segmentation to limit firewall access

DETECTION:
1. Monitor for HTTP POST requests to /userportal or /webadmin with unusual payloads
2. Alert on authentication bypass attempts (HTTP 200 responses without valid credentials)
3. Track process execution spawned from Sophos Firewall processes
4. Monitor for outbound connections from firewall to external C2 infrastructure
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع نسخ جدار حماية Sophos في بيئتك وقم بتوثيق الإصدارات
2. قيد أو اقطع الوصول الخارجي إلى بوابة المستخدم وواجهات Webadmin المتأثرة فوراً
3. فعّل السجلات والمراقبة المحسّنة على جميع نسخ جدار حماية Sophos
4. راجع سجلات جدار الحماية للبحث عن محاولات مصادقة مريبة أو أنماط وصول شاذة

التصحيح:
1. طبّق تصحيحات أمان جدار حماية Sophos فوراً (v18.5.4، v19.0.3، v19.5.1 أو أحدث)
2. اختبر التصحيحات في بيئة غير الإنتاج أولاً
3. جدول نوافذ تصحيح طارئة للأنظمة الإنتاجية
4. تحقق من تطبيق التصحيح وأعد تشغيل خدمات جدار الحماية

الضوابط البديلة (إذا تأخر التصحيح):
1. قيد الوصول إلى Webadmin وبوابة المستخدم إلى نطاقات IP موثوقة فقط
2. طبّق قواعد WAF لحجب طلبات المصادقة المريبة
3. عطّل بوابة المستخدم و Webadmin إذا لم تكن مطلوبة بنشاط
4. طبّق تقسيم الشبكة لتحديد وصول جدار الحماية

الكشف:
1. راقب طلبات HTTP POST إلى /userportal أو /webadmin برسائل غير عادية
2. أصدر تنبيهات لمحاولات تجاوز المصادقة (استجابات HTTP 200 بدون بيانات اعتماد صحيحة)
3. تتبع تنفيذ العمليات المنبثقة من عمليات جدار حماية Sophos
4. راقب الاتصالات الصادرة من جدار الحماية إلى البنية التحتية الخارجية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.6.1.1 - Access Control Policy ECC 2024 A.6.2.1 - User Registration and De-registration ECC 2024 A.6.2.2 - User Access Rights ECC 2024 A.9.2.1 - User Endpoint Devices ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Assets SAMA CSF PR.AC-1 - Access Control Policy SAMA CSF PR.AC-4 - Access Rights Management SAMA CSF DE.CM-8 - Vulnerability Scans
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control ISO 27001:2022 A.8.1 - User Endpoint Devices 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
PCI DSS 2.1 - Firewall Configuration Standards PCI DSS 6.2 - Security Patches PCI DSS 8.1 - User Access Control
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Sophos:Firewall
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS94.44%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-04-21
Published 2022-03-31
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.5
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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