📄 Description (English)
Cisco Catalyst SD-WAN Manager — CVE-2026-20128
Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.
Required Action: Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Due Date: 2026-04-23
🤖 AI Executive Summary
CVE-2026-20128 is a critical privilege escalation vulnerability in Cisco Catalyst SD-WAN Manager that allows authenticated local attackers to recover stored passwords and gain DCA user privileges. With a CVSS score of 9.8 and no patch currently available, this poses an immediate threat to organizations relying on SD-WAN infrastructure for network connectivity. Saudi organizations must implement urgent compensating controls and credential rotation procedures to mitigate exposure.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 02:48
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi organizations operating SD-WAN infrastructure, particularly in: Banking sector (SAMA-regulated institutions using SD-WAN for branch connectivity), Government agencies (NCA oversight), Telecommunications (STC, Mobily, Zain SD-WAN deployments), Energy sector (ARAMCO and downstream operators), and Healthcare institutions. The ability to recover DCA credentials enables lateral movement, data exfiltration, and potential network-wide compromise. Organizations with multi-site SD-WAN deployments face elevated risk of cascading attacks across their infrastructure.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Telecommunications
Energy and Utilities
Healthcare
Large Enterprise Networks
🎯 MITRE ATT&CK Techniques
T1110 — Brute Force (credential recovery)
T1555 — Credentials from Password Stores (recoverable format exploitation)
T1556 — Modify Authentication Process (privilege escalation via recovered credentials)
T1078 — Valid Accounts (use of recovered DCA credentials)
T1548 — Abuse Elevation Control Mechanism (privilege escalation)
T1087 — Account Discovery (enumeration of DCA accounts)
T1040 — Network Sniffing (potential lateral movement post-compromise)
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all Cisco Catalyst SD-WAN Manager instances in your environment and document version numbers
2. Restrict local access to SD-WAN Manager systems to authorized personnel only; implement strict access controls
3. Rotate all DCA user credentials immediately and enforce strong password policies (minimum 16 characters, complexity requirements)
4. Review filesystem permissions on credential storage locations; ensure DCA credential files are readable only by root/system accounts
5. Enable comprehensive audit logging for all local access attempts to SD-WAN Manager systems
COMPENSATING CONTROLS:
6. Implement host-based intrusion detection (HIDS) to monitor unauthorized filesystem access attempts
7. Deploy file integrity monitoring (FIM) on credential storage directories
8. Isolate SD-WAN Manager systems on dedicated network segments with restricted access
9. Implement multi-factor authentication (MFA) for all administrative access to SD-WAN infrastructure
10. Monitor for suspicious privilege escalation attempts using SIEM correlation rules
DETECTION RULES:
11. Alert on any process attempting to read DCA credential files with low-privilege context
12. Monitor for unusual local login attempts to SD-WAN Manager systems
13. Track all credential file access via filesystem auditing (auditd on Linux, Windows Event Log on Windows)
14. Monitor for DCA privilege usage from unexpected source IPs or at unusual times
PATCHING GUIDANCE:
15. Subscribe to Cisco security advisories for patch availability; apply immediately upon release
16. Maintain current Cisco support contracts to receive priority notification of fixes
17. Test patches in isolated lab environment before production deployment
18. If patch unavailability extends beyond 30 days, evaluate alternative SD-WAN solutions per BOD 22-01 guidance
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع مثيلات Cisco Catalyst SD-WAN Manager في بيئتك وتوثيق أرقام الإصدارات
2. قيد الوصول المحلي إلى أنظمة SD-WAN Manager للموظفين المصرح لهم فقط؛ تطبيق ضوابط وصول صارمة
3. قم بتدوير بيانات اعتماد مستخدم DCA على الفور وفرض سياسات كلمات مرور قوية (16 حرفًا على الأقل)
4. راجع أذونات نظام الملفات في مواقع تخزين بيانات الاعتماد؛ تأكد من أن ملفات بيانات اعتماد DCA قابلة للقراءة فقط من قبل حسابات root/system
5. تفعيل تسجيل التدقيق الشامل لجميع محاولات الوصول المحلي إلى أنظمة SD-WAN Manager
الضوابط التعويضية:
6. تطبيق كشف التسلل على مستوى المضيف (HIDS) لمراقبة محاولات الوصول غير المصرح إلى نظام الملفات
7. نشر مراقبة سلامة الملفات (FIM) على دلائل تخزين بيانات الاعتماد
8. عزل أنظمة SD-WAN Manager على شرائح شبكة مخصصة مع وصول مقيد
9. تطبيق المصادقة متعددة العوامل (MFA) لجميع الوصول الإداري إلى بنية SD-WAN
10. مراقبة محاولات تصعيد الامتيازات المريبة باستخدام قواعد ارتباط SIEM
قواعد الكشف:
11. تنبيه عند محاولة أي عملية قراءة ملفات بيانات اعتماد DCA بسياق امتياز منخفض
12. مراقبة محاولات تسجيل الدخول المحلية غير العادية إلى أنظمة SD-WAN Manager
13. تتبع جميع عمليات الوصول إلى ملفات بيانات الاعتماد عبر تدقيق نظام الملفات
14. مراقبة استخدام امتيازات DCA من عناوين IP غير متوقعة أو في أوقات غير عادية
إرشادات التصحيح:
15. الاشتراك في استشارات أمان Cisco لتوفر التصحيحات؛ التطبيق الفوري عند الإصدار
16. الحفاظ على عقود دعم Cisco الحالية للحصول على إشعار أولوية بالإصلاحات
17. اختبار التصحيحات في بيئة معملية معزولة قبل نشر الإنتاج
18. إذا امتد عدم توفر التصحيح لأكثر من 30 يومًا، قيّم حلول SD-WAN البديلة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.9.2.1 — User access management and authentication controls
ECC 2024 A.9.4.3 — Password management and secure storage requirements
ECC 2024 A.12.4.1 — Event logging and monitoring of access to critical systems
ECC 2024 A.14.2.1 — Vulnerability management and patch procedures
🔵 SAMA CSF
SAMA CSF ID.AM-2 — Asset inventory and management
SAMA CSF PR.AC-1 — Access control and authentication mechanisms
SAMA CSF PR.AC-6 — Credential management and secure storage
SAMA CSF DE.CM-1 — Detection and monitoring of unauthorized access
SAMA CSF RS.MI-2 — Incident response and mitigation procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 — Access control and authentication
ISO 27001:2022 A.8.2.3 — Password management and secure storage
ISO 27001:2022 A.8.3.2 — Segregation of duties and privilege management
ISO 27001:2022 A.12.4.1 — Event logging and monitoring
ISO 27001:2022 A.12.6.1 — Vulnerability management
🟣 PCI DSS v4.0
PCI DSS 2.1 — Default security parameters and credentials
PCI DSS 2.2.4 — Configuration standards for system components
PCI DSS 7.1 — Limiting access to system components by business need
PCI DSS 8.2.3 — Password strength and management requirements
PCI DSS 10.2 — Logging and monitoring of access to cardholder data
🔗 References & Sources 0
No references.