📄 Description (English)
Samba Remote Code Execution Vulnerability — Samba contains a remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share and then cause the server to load and execute it.
🤖 AI Executive Summary
CVE-2017-7494 is a critical remote code execution vulnerability in Samba (versions 3.5.0 and later) that allows an authenticated attacker to upload a malicious shared library to a writable share and force the server to load and execute it. Known as 'SambaCry' or 'EternalRed,' this vulnerability has publicly available exploits and has been actively exploited in the wild, including for cryptocurrency mining and ransomware deployment. With a CVSS score of 9.0, this vulnerability poses an extreme risk to any organization running unpatched Samba file-sharing services. Immediate patching is critical as exploitation requires only write access to any share on the target system.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 9, 2026 00:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations across multiple sectors. Government entities (NCA-regulated) and military organizations frequently use Samba/Linux file servers for internal file sharing. Energy sector organizations including ARAMCO and its subsidiaries rely heavily on Linux-based infrastructure where Samba is commonly deployed for cross-platform file sharing. Banking institutions regulated by SAMA may have Samba services in their backend infrastructure. Telecom providers (STC, Mobily, Zain) running Linux-based network management systems with Samba shares are at risk. Healthcare organizations and universities in Saudi Arabia commonly use Samba for shared storage. The availability of public exploits and the prevalence of Samba in Saudi enterprise environments, combined with the fact that many legacy systems in the Kingdom may still run unpatched versions, makes this a high-priority threat.
🏢 Affected Saudi Sectors
Government
Energy
Banking
Telecommunications
Healthcare
Education
Defense
Retail
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Samba installations across the environment using network scanning tools (nmap -p 445 --script smb-vuln-cve-2017-7494)
2. Apply Samba security patches immediately — update to Samba 4.6.4, 4.5.10, or 4.4.14 or later
3. If patching is not immediately possible, add 'nt pipe support = no' to the [global] section of smb.conf and restart Samba as a temporary workaround (note: this may break some Windows client functionality)
PATCHING GUIDANCE:
- For RHEL/CentOS: yum update samba
- For Ubuntu/Debian: apt-get update && apt-get upgrade samba
- For SUSE: zypper update samba
- Verify patch application by checking samba version: smbd --version
COMPENSATING CONTROLS:
1. Remove write permissions from all Samba shares where not strictly necessary
2. Restrict Samba access to trusted network segments only using firewall rules (block TCP 445 from untrusted networks)
3. Enable SELinux/AppArmor to limit Samba process capabilities
4. Implement network segmentation to isolate file servers
5. Disable anonymous/guest access to all shares
DETECTION RULES:
1. Monitor for unusual .so file uploads to Samba shares
2. Alert on Samba (smbd) process spawning unexpected child processes
3. IDS/IPS signature: Monitor for named pipe requests containing path traversal patterns on SMB
4. YARA rules for known SambaCry payloads
5. Monitor Samba logs for unusual IPC$ and pipe connection attempts
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع تثبيتات Samba في البيئة باستخدام أدوات فحص الشبكة (nmap -p 445 --script smb-vuln-cve-2017-7494)
2. تطبيق تحديثات أمان Samba فوراً — التحديث إلى الإصدار 4.6.4 أو 4.5.10 أو 4.4.14 أو أحدث
3. في حال عدم إمكانية التحديث الفوري، أضف 'nt pipe support = no' إلى قسم [global] في ملف smb.conf وأعد تشغيل Samba كحل مؤقت (ملاحظة: قد يؤثر على بعض وظائف عملاء Windows)
إرشادات التحديث:
- لأنظمة RHEL/CentOS: yum update samba
- لأنظمة Ubuntu/Debian: apt-get update && apt-get upgrade samba
- لأنظمة SUSE: zypper update samba
- التحقق من التحديث بفحص الإصدار: smbd --version
الضوابط التعويضية:
1. إزالة صلاحيات الكتابة من جميع المجلدات المشتركة حيث لا تكون ضرورية
2. تقييد الوصول إلى Samba على شرائح الشبكة الموثوقة فقط باستخدام قواعد جدار الحماية (حظر TCP 445 من الشبكات غير الموثوقة)
3. تفعيل SELinux/AppArmor للحد من صلاحيات عملية Samba
4. تطبيق تجزئة الشبكة لعزل خوادم الملفات
5. تعطيل الوصول المجهول/الضيف لجميع المجلدات المشتركة
قواعد الكشف:
1. مراقبة تحميل ملفات .so غير عادية إلى مجلدات Samba المشتركة
2. التنبيه عند إنشاء عملية Samba (smbd) لعمليات فرعية غير متوقعة
3. توقيعات IDS/IPS: مراقبة طلبات الأنابيب المسماة التي تحتوي على أنماط اجتياز المسار على SMB
4. قواعد YARA للحمولات المعروفة لـ SambaCry
5. مراقبة سجلات Samba لمحاولات اتصال IPC$ والأنابيب غير العادية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2-3-1: Vulnerability Management
ECC 2-3-4: Patch Management
ECC 2-5-1: Network Security
ECC 2-2-1: Asset Management
ECC 2-6-1: Server Security
🔵 SAMA CSF
SAMA CSF 3.3.3: Patch Management
SAMA CSF 3.3.4: Vulnerability Management
SAMA CSF 3.3.7: Network Security Management
SAMA CSF 3.3.5: Change Management
SAMA CSF 3.4.1: Incident and Threat Management
🟡 ISO 27001:2022
A.8.8: Management of Technical Vulnerabilities
A.8.9: Configuration Management
A.8.20: Network Security
A.8.22: Segregation of Networks
A.5.7: Threat Intelligence
🟣 PCI DSS v4.0
PCI DSS 6.3.3: Patching Critical Vulnerabilities
PCI DSS 11.3: Vulnerability Scanning
PCI DSS 1.3: Network Segmentation
PCI DSS 2.2: System Hardening
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Samba:Samba