📄 Description (English)
A weakness has been identified in BurtTheCoder mcp-dnstwist up to 1.0.4. Affected by this vulnerability is the function fuzz_domain of the file src/index.ts of the component MCP Interface. Executing a manipulation of the argument Request can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
🤖 AI Executive Summary
CVE-2026-7443 is a critical OS command injection vulnerability in mcp-dnstwist up to version 1.0.4 affecting the fuzz_domain function. The vulnerability allows remote attackers to execute arbitrary OS commands by manipulating the Request argument through the MCP Interface. With a CVSS score of 7.3 and public exploit availability, this poses an immediate threat to organizations using this DNS fuzzing tool, particularly those leveraging it for security testing infrastructure.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 5, 2026 03:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi government cybersecurity agencies (NCA), banking sector security operations (SAMA-regulated institutions), and telecommunications providers (STC, Mobily) that utilize mcp-dnstwist for DNS security testing and domain enumeration. Critical impact extends to Saudi energy sector (ARAMCO, SEC) security teams and healthcare organizations using this tool for infrastructure security assessments. The lack of patch availability and public exploit code significantly elevates risk for all affected sectors.
🏢 Affected Saudi Sectors
Government (NCA, NCSC)
Banking & Financial Services (SAMA-regulated)
Telecommunications (STC, Mobily, Zain)
Energy (ARAMCO, SEC)
Healthcare
Critical Infrastructure
Cybersecurity Service Providers
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running mcp-dnstwist versions up to 1.0.4 across your infrastructure
2. Isolate affected systems from production networks or restrict MCP Interface access to trusted networks only
3. Implement network segmentation to limit lateral movement if compromise occurs
4. Monitor all process execution logs for suspicious command patterns
PATCHING GUIDANCE:
1. Contact BurtTheCoder project for security patch status and timeline
2. Evaluate alternative DNS fuzzing tools (dnsenum, dnsrecon, massdns) as interim solutions
3. If upgrade available, test in isolated environment before production deployment
COMPENSATING CONTROLS (until patch available):
1. Implement strict input validation and sanitization for all Request parameters
2. Run mcp-dnstwist in containerized environment with minimal privileges and restricted syscalls
3. Use Web Application Firewall (WAF) rules to block malicious Request patterns
4. Implement command execution monitoring with EDR/XDR solutions
5. Restrict file system and network access for mcp-dnstwist process
DETECTION RULES:
1. Monitor for unexpected child processes spawned from mcp-dnstwist process
2. Alert on command execution containing shell metacharacters (|, ;, &, $(), backticks) in DNS fuzzing requests
3. Track file modifications in system directories initiated by mcp-dnstwist
4. Monitor network connections from mcp-dnstwist to non-DNS ports
5. Log all MCP Interface requests with full Request parameter values
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل إصدارات mcp-dnstwist حتى 1.0.4 عبر البنية الأساسية الخاصة بك
2. عزل الأنظمة المتأثرة عن شبكات الإنتاج أو تقييد وصول واجهة MCP إلى الشبكات الموثوقة فقط
3. تنفيذ تقسيم الشبكة لتحديد الحركة الجانبية في حالة الاختراق
4. مراقبة جميع سجلات تنفيذ العمليات للأنماط المريبة
إرشادات التصحيح:
1. الاتصال بمشروع BurtTheCoder للتحقق من حالة التصحيح الأمني والجدول الزمني
2. تقييم أدوات DNS fuzzing البديلة (dnsenum, dnsrecon, massdns) كحلول مؤقتة
3. إذا كان الترقية متاحة، اختبر في بيئة معزولة قبل نشر الإنتاج
الضوابط التعويضية (حتى توفر التصحيح):
1. تنفيذ التحقق من صحة المدخلات والتطهير الصارم لجميع معاملات الطلب
2. تشغيل mcp-dnstwist في بيئة حاوية بامتيازات دنيا وأنظمة استدعاء مقيدة
3. استخدام قواعد جدار الحماية لتطبيقات الويب (WAF) لحظر أنماط الطلب الضارة
4. تنفيذ مراقبة تنفيذ الأوامر باستخدام حلول EDR/XDR
5. تقييد الوصول إلى نظام الملفات والشبكة لعملية mcp-dnstwist
قواعد الكشف:
1. مراقبة العمليات الفرعية غير المتوقعة التي تم إطلاقها من عملية mcp-dnstwist
2. التنبيه على تنفيذ الأوامر التي تحتوي على أحرف metacharacters (|, ;, &, $(), backticks) في طلبات DNS fuzzing
3. تتبع تعديلات الملفات في أدلة النظام التي بدأتها mcp-dnstwist
4. مراقبة الاتصالات الشبكية من mcp-dnstwist إلى منافذ غير DNS
5. تسجيل جميع طلبات واجهة MCP بقيم معاملات الطلب الكاملة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Information Security Policies and Procedures
ECC 2024 A.8.1.1 - User Endpoint Devices
ECC 2024 A.8.2.1 - Privileged Access Rights
ECC 2024 A.8.3.1 - Restriction of Access to Information
ECC 2024 A.12.2.1 - Restrictions on Software Installation
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
Governance & Risk Management - Vulnerability Management
Information & Cybersecurity - Secure Development & Deployment
Information & Cybersecurity - Threat & Vulnerability Management
Operational Resilience - Incident Management & Response
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for information security
ISO 27001:2022 A.8.1 - User endpoint devices
ISO 27001:2022 A.8.2 - Privileged access rights
ISO 27001:2022 A.12.2 - Restrictions on software installation
ISO 27001:2022 A.12.6 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2 - Secure development policy and procedures
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure security patches are installed within one month of release
PCI DSS 6.3 - Develop and maintain secure software development processes
PCI DSS 11.3 - Perform penetration testing and vulnerability assessments
🔗 References & Sources 6
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https://github.com/BruceJqs/public_exp/issues/22
cna@vuldb.com
https://github.com/BurtTheCoder/mcp-dnstwist/
cna@vuldb.com
https://github.com/BurtTheCoder/mcp-dnstwist/issues/13
cna@vuldb.com
https://vuldb.com/submit/804027
cna@vuldb.com
https://vuldb.com/vuln/360185
cna@vuldb.com
https://vuldb.com/vuln/360185/cti
cna@vuldb.com