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Global malware Financial Services, Cryptocurrency CRITICAL 51m Global general Financial Services and E-commerce MEDIUM 54m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h Global malware Financial Services, Cryptocurrency CRITICAL 51m Global general Financial Services and E-commerce MEDIUM 54m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h Global malware Financial Services, Cryptocurrency CRITICAL 51m Global general Financial Services and E-commerce MEDIUM 54m Global data_breach Social Media and Communications CRITICAL 1h Global general Cybersecurity Operations HIGH 1h Global phishing Technology and Consumer Services HIGH 1h Global data_breach Multiple sectors HIGH 2h Global vulnerability Government and Critical Infrastructure CRITICAL 2h Global vulnerability Multiple sectors CRITICAL 2h Global apt Financial Services, Government HIGH 2h Global insider Cross-sector CRITICAL 3h
Vulnerabilities

CVE-2021-27102

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Accellion FTA OS Command Injection Vulnerability — Accellion FTA contains an OS command injection vulnerability exploited via a local web service call.
Published: Nov 3, 2021  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Accellion FTA OS Command Injection Vulnerability — Accellion FTA contains an OS command injection vulnerability exploited via a local web service call.

🤖 AI Executive Summary

Accellion FTA contains a critical OS command injection vulnerability (CVSS 9.0) that allows attackers to execute arbitrary commands through local web service calls. This vulnerability has active exploits available and affects file transfer appliances widely deployed in enterprise environments. Immediate patching is essential as this vulnerability poses severe risk to confidentiality, integrity, and availability of sensitive data.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 11:02
🇸🇦 Saudi Arabia Impact Assessment
Saudi banking sector (SAMA-regulated institutions) and government agencies (NCA oversight) are at highest risk as Accellion FTA is commonly used for secure file transfer in these sectors. Energy sector organizations (ARAMCO, downstream operators) and telecommunications providers (STC, Mobily) using FTA for business-critical file transfers face significant exposure. Healthcare organizations and financial services firms handling sensitive customer data are also vulnerable. Successful exploitation could lead to unauthorized access to confidential financial records, government documents, and critical infrastructure data.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Energy and Utilities Telecommunications Healthcare Insurance Large Enterprises
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Accellion FTA instances in your environment and document their network locations
2. Isolate affected FTA appliances from production networks if possible, or restrict access to trusted internal networks only
3. Review access logs for suspicious local web service calls and command patterns
4. Check for indicators of compromise: unexpected process executions, file modifications, or data exfiltration

PATCHING:
1. Apply Accellion's security patches immediately (FTA versions prior to 9.12.3 are vulnerable)
2. Verify patch installation and restart services
3. Test functionality in staging environment before production deployment

COMPENSATING CONTROLS (if patching delayed):
1. Implement strict network segmentation - restrict FTA access to authorized users/IPs only
2. Disable unnecessary web services and APIs on FTA appliances
3. Monitor FTA logs for suspicious command injection patterns (shell metacharacters: |, &, ;, $, `, etc.)
4. Implement Web Application Firewall (WAF) rules to block command injection attempts
5. Enable detailed audit logging for all FTA web service calls

DETECTION:
1. Monitor for HTTP requests containing shell metacharacters to FTA endpoints
2. Alert on unexpected process spawning from FTA service processes
3. Track file system modifications in FTA directories
4. Monitor outbound connections from FTA appliances to external IPs
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع مثيلات Accellion FTA في بيئتك وقم بتوثيق مواقعها على الشبكة
2. عزل أجهزة FTA المتأثرة عن شبكات الإنتاج إن أمكن، أو قيد الوصول إلى الشبكات الداخلية الموثوقة فقط
3. راجع سجلات الوصول للبحث عن استدعاءات خدمة الويب المحلية المريبة وأنماط الأوامر
4. تحقق من مؤشرات الاختراق: تنفيذ العمليات غير المتوقعة أو تعديلات الملفات أو تسرب البيانات

التصحيح:
1. طبق تصحيحات الأمان من Accellion فورًا (إصدارات FTA السابقة للإصدار 9.12.3 عرضة للخطر)
2. تحقق من تثبيت التصحيح وأعد تشغيل الخدمات
3. اختبر الوظائف في بيئة التجريب قبل نشر الإنتاج

الضوابط البديلة (إذا تأخر التصحيح):
1. تنفيذ تقسيم شبكة صارم - قيد وصول FTA للمستخدمين/عناوين IP المصرح بها فقط
2. عطل الخدمات والواجهات البرمجية غير الضرورية على أجهزة FTA
3. راقب سجلات FTA للبحث عن أنماط حقن الأوامر المريبة (أحرف shell: |, &, ;, $, `, إلخ)
4. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) لحظر محاولات حقن الأوامر
5. تفعيل تسجيل التدقيق التفصيلي لجميع استدعاءات خدمة الويب FTA

الكشف:
1. راقب طلبات HTTP التي تحتوي على أحرف shell metacharacters إلى نقاط نهاية FTA
2. تنبيه عند توليد عمليات غير متوقعة من عمليات خدمة FTA
3. تتبع تعديلات نظام الملفات في دلائل FTA
4. راقب الاتصالات الصادرة من أجهزة FTA إلى عناوين IP الخارجية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies and Procedures A.6.1.1 - Access Control Policy A.8.1.1 - Asset Management A.12.2.1 - Change Management A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
ID.RA-1 - Asset Management and Inventory PR.IP-12 - Vulnerability Management PR.PT-2 - Security Patches and Updates DE.CM-8 - Vulnerability Scanning
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development policy A.12.2.1 - Change management procedures A.12.3.1 - Segregation of development, test and production environments
🟣 PCI DSS v4.0
6.2 - Ensure all system components are protected from known vulnerabilities 6.1 - Establish a process to identify and assign a risk rating to newly discovered security vulnerabilities 11.2 - Run automated vulnerability scanning tools regularly
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Accellion:FTA
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS0.28%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2021-11-17
Published 2021-11-03
Source Feed cisa_kev
Views 3
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited ransomware
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