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CVE-2017-6316

Critical 🇺🇸 CISA KEV ⚡ Exploit Available

                    Published: Mar 25, 2022                                          ·  Source: CISA_KEV                

CVSS v3

9.0

🔗 NVD Official

📄 Description (English)

Citrix Multiple Products Remote Code Execution Vulnerability — A vulnerability has been identified in the management interface of Citrix NetScaler SD-WAN Enterprise and Standard Edition and Citrix CloudBridge Virtual WAN Edition that could result in an unauthenticated, remote attacker being able to execute arbitrary code as a root user. This vulnerability also affects XenMobile Server.

🤖 AI Executive Summary

CVE-2017-6316 is a critical remote code execution vulnerability in Citrix NetScaler SD-WAN, CloudBridge Virtual WAN, and XenMobile Server management interfaces that allows unauthenticated remote attackers to execute arbitrary code as root. With a CVSS score of 9.0 and publicly available exploits, this vulnerability poses an extreme risk to any organization running affected Citrix products. Despite being a 2017 vulnerability with patches available, unpatched legacy systems remain highly exploitable. This CVE has been added to CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 8, 2026 11:24

🇸🇦 Saudi Arabia Impact Assessment

This vulnerability significantly impacts Saudi organizations using Citrix networking and mobile device management solutions. Government agencies under NCA oversight using XenMobile for mobile device management are at high risk of complete system compromise. Banking and financial institutions regulated by SAMA that rely on Citrix SD-WAN for branch connectivity could face unauthorized access to critical financial networks. Telecom providers (STC, Mobily, Zain) using CloudBridge Virtual WAN for network optimization are exposed to root-level compromise. Energy sector organizations including ARAMCO and utilities using Citrix SD-WAN infrastructure could face operational disruption. Healthcare organizations using XenMobile for managing clinical mobile devices risk patient data exposure and HIPAA-equivalent violations.

🏢 Affected Saudi Sectors

Government Banking Telecom Energy Healthcare Education Retail

⚖️ Saudi Risk Score (AI)

9.0

/ 10.0

🔧 Remediation Steps (English)

Immediate Actions:

1. Identify all Citrix NetScaler SD-WAN, CloudBridge Virtual WAN, and XenMobile Server instances in your environment

2. Restrict management interface access to trusted internal networks only — do NOT expose to the internet

3. Implement network segmentation to isolate management interfaces



Patching Guidance:

4. Apply Citrix security patches immediately — refer to Citrix Security Bulletin CTX220617

5. Upgrade XenMobile Server to the latest supported version

6. Upgrade NetScaler SD-WAN and CloudBridge to patched versions as specified by Citrix



Compensating Controls:

7. Deploy WAF rules to filter malicious requests to management interfaces

8. Enable enhanced logging on all Citrix management interfaces

9. Implement IP whitelisting for management access



Detection Rules:

10. Monitor for unexpected root-level process execution on Citrix appliances

11. Alert on unauthenticated access attempts to management interfaces

12. Deploy IDS/IPS signatures for CVE-2017-6316 exploitation attempts

13. Review Citrix appliance logs for indicators of compromise including unexpected file modifications

🔧 خطوات المعالجة (العربية)

الإجراءات الفورية:

1. تحديد جميع مثيلات Citrix NetScaler SD-WAN وCloudBridge Virtual WAN وXenMobile Server في بيئتكم

2. تقييد الوصول إلى واجهة الإدارة للشبكات الداخلية الموثوقة فقط — لا تعرضها للإنترنت

3. تطبيق تجزئة الشبكة لعزل واجهات الإدارة

إرشادات التصحيح:

4. تطبيق تصحيحات Citrix الأمنية فوراً — الرجوع إلى نشرة Citrix الأمنية CTX220617

5. ترقية XenMobile Server إلى أحدث إصدار مدعوم

6. ترقية NetScaler SD-WAN وCloudBridge إلى الإصدارات المصححة وفقاً لتوصيات Citrix

الضوابط التعويضية:

7. نشر قواعد جدار حماية تطبيقات الويب لتصفية الطلبات الضارة لواجهات الإدارة

8. تفعيل التسجيل المحسن على جميع واجهات إدارة Citrix

9. تطبيق قوائم السماح بعناوين IP للوصول إلى الإدارة

قواعد الكشف:

10. مراقبة تنفيذ العمليات غير المتوقعة بصلاحيات الجذر على أجهزة Citrix

11. التنبيه على محاولات الوصول غير المصادق عليها لواجهات الإدارة

12. نشر توقيعات IDS/IPS لمحاولات استغلال CVE-2017-6316

13. مراجعة سجلات أجهزة Citrix للبحث عن مؤشرات الاختراق بما في ذلك تعديلات الملفات غير المتوقعة

📋 Regulatory Compliance Mapping

🟢 NCA ECC 2024

2-3-1 (Patch Management) 2-5-1 (Network Security) 2-2-1 (Asset Management) 2-6-1 (Vulnerability Management) 2-9-1 (Remote Access Security)

🔵 SAMA CSF

3.3.3 (Patch Management) 3.3.4 (Vulnerability Management) 3.3.7 (Network Security Management) 3.1.3 (Asset Management) 3.3.14 (Remote Access)

🟡 ISO 27001:2022

A.8.8 (Management of technical vulnerabilities) A.8.9 (Configuration management) A.8.20 (Networks security) A.8.22 (Segregation of networks) A.5.7 (Threat intelligence)

🟣 PCI DSS v4.0

6.3.3 (Install critical security patches within one month) 2.2.1 (System configuration standards) 1.3.1 (Restrict inbound traffic) 11.3 (Penetration testing)

🔗 References & Sources 0

No references.

📦 Affected Products / CPE 1 entries

Citrix:NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server

📊 CVSS Score

9.0

/ 10.0 — Critical

📋 Quick Facts

Severity Critical

CVSS Score9.0

EPSS87.79%

Exploit ✓ Yes

Patch ✓ Yes

CISA KEV🇺🇸 Yes

KEV Due Date2022-04-15

Published 2022-03-25

Source Feed cisa_kev

🇸🇦 Saudi Risk Score

9.0

/ 10.0 — Saudi Risk

🏷️ Tags

kev actively-exploited

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

CVE-2017-6316

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