📄 الوصف (الإنجليزية)
A vulnerability has been found in Cesanta Mongoose up to 7.20. This affects the function mg_tls_recv_cert of the file mongoose.c of the component TLS 1.3 Handler. Such manipulation of the argument pubkey leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.21 mitigates this issue. The name of the patch is 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
🤖 ملخص AI
A heap-based buffer overflow vulnerability exists in Cesanta Mongoose versions up to 7.20 within the TLS 1.3 handler's certificate reception function. The vulnerability can be exploited remotely through manipulation of the public key argument, potentially allowing arbitrary code execution. Patch version 7.21 is available and should be deployed immediately across all affected deployments in Saudi organizations.
📄 الوصف (العربية)
🤖 التحليل الذكي آخر تحليل: May 7, 2026 07:36
🇸🇦 التأثير على المملكة العربية السعودية
This vulnerability poses significant risk to Saudi organizations using Mongoose in IoT devices, embedded systems, and edge computing infrastructure. Critical impact expected for: (1) Banking sector - if Mongoose is used in payment terminals or ATM systems; (2) ARAMCO and energy sector - if deployed in SCADA/ICS systems or remote monitoring devices; (3) Government agencies - if used in secure communication gateways; (4) Telecom operators (STC, Mobily, Zain) - if embedded in network infrastructure or 5G edge devices; (5) Healthcare institutions - if used in medical device communications. The remote exploitability without authentication makes this particularly dangerous for internet-facing systems.
🏢 القطاعات السعودية المتأثرة
Banking and Financial Services
Energy and Utilities (ARAMCO)
Government and Public Administration
Telecommunications (STC, Mobily, Zain)
Healthcare
Manufacturing and Industrial Control Systems
Transportation and Logistics
🎯 تقنيات MITRE ATT&CK
⚖️ درجة المخاطر السعودية (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all systems running Cesanta Mongoose versions ≤7.20 across your organization
2. Prioritize internet-facing and critical infrastructure systems for immediate patching
3. Isolate or restrict network access to affected systems if patching cannot be completed immediately
PATCHING GUIDANCE:
1. Upgrade Mongoose to version 7.21 or later immediately
2. Apply patch commit 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1 if upgrading to 7.21
3. Test patches in non-production environments first, particularly for embedded/IoT deployments
4. Verify TLS 1.3 functionality post-patching
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation to restrict TLS 1.3 connections to trusted sources only
2. Deploy WAF/IPS rules to detect malformed TLS certificates
3. Monitor for abnormal certificate exchange patterns
4. Disable TLS 1.3 if TLS 1.2 is acceptable and supported
DETECTION RULES:
1. Monitor for TLS handshake failures with certificate parsing errors
2. Alert on abnormally large certificate sizes or malformed public key structures
3. Track process crashes in services using Mongoose with TLS enabled
4. Monitor for heap corruption indicators in application logs
5. Implement IDS signatures for malformed TLS 1.3 ClientHello messages with oversized certificate data
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع الأنظمة التي تعمل بإصدارات Mongoose ≤7.20 عبر مؤسستك
2. أعط الأولوية للأنظمة المتصلة بالإنترنت والبنية التحتية الحرجة للإصلاح الفوري
3. عزل أو تقييد الوصول إلى الأنظمة المتأثرة إذا لم يكن الإصلاح ممكناً فوراً
إرشادات الإصلاح:
1. قم بترقية Mongoose إلى الإصدار 7.21 أو أحدث فوراً
2. طبق تصحيح الالتزام 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1 عند الترقية إلى 7.21
3. اختبر الإصلاحات في بيئات غير الإنتاج أولاً، خاصة للنشرات المدمجة/IoT
4. تحقق من وظيفة TLS 1.3 بعد الإصلاح
الضوابط البديلة (إذا لم يكن الإصلاح الفوري ممكناً):
1. تطبيق تقسيم الشبكة لتقييد اتصالات TLS 1.3 بالمصادر الموثوقة فقط
2. نشر قواعد WAF/IPS للكشف عن شهادات TLS المشوهة
3. مراقبة أنماط تبادل الشهادات غير الطبيعية
4. تعطيل TLS 1.3 إذا كان TLS 1.2 مقبولاً ومدعوماً
قواعد الكشف:
1. مراقبة فشل مصافحة TLS مع أخطاء تحليل الشهادات
2. تنبيهات حول أحجام الشهادات الكبيرة بشكل غير طبيعي أو هياكل المفاتيح العامة المشوهة
3. تتبع أعطال العمليات في الخدمات التي تستخدم Mongoose مع تفعيل TLS
4. مراقبة مؤشرات تلف الكومة في سجلات التطبيق
5. تطبيق توقيعات IDS لرسائل ClientHello المشوهة في TLS 1.3 ببيانات شهادات كبيرة الحجم
📋 خريطة الامتثال التنظيمي
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring and logging of access to information
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset Management and Vulnerability Management
SAMA CSF PR.IP-12 - Security patch management
SAMA CSF DE.CM-1 - Detection and monitoring of anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Segregation of development, test and production environments
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure development policy and procedures
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure all system components and software are protected from known vulnerabilities
PCI DSS 6.3.1 - Identify and evaluate all security patches for vulnerabilities
🔗 المراجع والمصادر 6
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https://github.com/cesanta/mongoose/
cna@vuldb.com
https://github.com/cesanta/mongoose/commit/0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1
cna@vuldb.com
https://github.com/cesanta/mongoose/releases/tag/7.21
cna@vuldb.com
https://vuldb.com/submit/770063
cna@vuldb.com
https://vuldb.com/vuln/354825
cna@vuldb.com
https://vuldb.com/vuln/354825/cti
cna@vuldb.com