📄 Description (English)
Zoho ManageEngine ADSelfService Plus Authentication Bypass Vulnerability — Zoho ManageEngine ADSelfService Plus contains an authentication bypass vulnerability affecting the REST API URLs which allow for remote code execution.
🤖 AI Executive Summary
Zoho ManageEngine ADSelfService Plus contains a critical authentication bypass vulnerability in REST API endpoints that enables unauthenticated remote code execution. With a CVSS score of 9.0 and publicly available exploits, this vulnerability poses an immediate threat to organizations using this identity management solution. Attackers can bypass authentication mechanisms and execute arbitrary code with system privileges, potentially compromising entire Active Directory infrastructures and user credential databases.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 07:03
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability critically impacts Saudi government agencies, financial institutions regulated by SAMA, and large enterprises relying on ADSelfService Plus for identity and access management. Government entities (NCA, Ministry of Interior, Ministry of Finance) using this solution face potential compromise of employee credentials and administrative access. Saudi banking sector institutions and payment processors are at severe risk of unauthorized access to customer data and financial systems. Healthcare organizations (MOH facilities, private hospitals) could experience disruption of patient record systems. Telecommunications providers (STC, Mobily, Zain) managing millions of subscriber credentials are particularly vulnerable. Energy sector organizations including ARAMCO subsidiaries could face operational technology access compromise.
🏢 Affected Saudi Sectors
Government & Public Administration
Banking & Financial Services
Healthcare
Energy & Utilities
Telecommunications
Large Enterprises
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all instances of Zoho ManageEngine ADSelfService Plus in your environment and document versions
2. Isolate affected systems from production networks if running vulnerable versions (pre-patch)
3. Review access logs for REST API endpoints (/api/*, /rest/*) for suspicious authentication bypass attempts
4. Monitor for indicators: unusual API calls without proper authentication headers, POST requests to /api/v3/users or /api/v3/groups endpoints
PATCHING GUIDANCE:
1. Apply Zoho security patches immediately (version 6121 and later contain fixes)
2. Prioritize patching for systems with internet-facing REST API endpoints
3. Test patches in non-production environment first
4. Schedule maintenance window for production deployment
COMPENSATING CONTROLS (if patching delayed):
1. Implement network-level access controls: restrict REST API endpoint access to authorized IP ranges only
2. Deploy WAF rules to block suspicious API requests lacking proper authentication tokens
3. Enable API request logging and implement real-time alerting for authentication failures
4. Implement rate limiting on REST API endpoints
5. Disable REST API if not required for business operations
DETECTION RULES:
1. Alert on POST/PUT requests to /api/v3/* endpoints without valid Authorization headers
2. Monitor for multiple failed authentication attempts followed by successful API calls
3. Track unusual user creation/modification via API endpoints
4. Flag requests to sensitive endpoints (/api/v3/users, /api/v3/groups, /api/v3/roles) from unexpected sources
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع نسخ Zoho ManageEngine ADSelfService Plus في بيئتك وقم بتوثيق الإصدارات
2. عزل الأنظمة المتأثرة عن شبكات الإنتاج إذا كانت تعمل بإصدارات قابلة للاستغلال
3. راجع سجلات الوصول لنقاط نهاية REST API للكشف عن محاولات تجاوز المصادقة المريبة
4. راقب المؤشرات: استدعاءات API غير عادية بدون رؤوس مصادقة صحيحة، طلبات POST إلى نقاط النهاية
إرشادات التصحيح:
1. طبق تصحيحات أمان Zoho على الفور (الإصدار 6121 والإصدارات الأحدث تحتوي على إصلاحات)
2. أولويات التصحيح للأنظمة التي تحتوي على نقاط نهاية REST API متصلة بالإنترنت
3. اختبر التصحيحات في بيئة غير الإنتاج أولاً
4. جدول نافذة الصيانة لنشر الإنتاج
الضوابط البديلة:
1. تطبيق ضوابط الوصول على مستوى الشبكة: تقييد الوصول إلى نقاط نهاية REST API للنطاقات المصرح بها فقط
2. نشر قواعد WAF لحظر طلبات API المريبة التي تفتقد رموز المصادقة الصحيحة
3. تفعيل تسجيل طلبات API وتطبيق التنبيهات في الوقت الفعلي لفشل المصادقة
4. تطبيق تحديد معدل على نقاط نهاية REST API
5. تعطيل REST API إذا لم تكن مطلوبة لعمليات العمل
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.6.1.1 - Access control policy
A.6.2.1 - User registration and access rights management
A.6.2.2 - Privileged access rights
A.8.2.1 - User endpoint devices
A.8.3.1 - Access control
A.12.4.1 - Event logging
A.12.4.3 - Administrator and operator logs
🔵 SAMA CSF
ID.AM-2 - Software platforms and applications are inventoried
PR.AC-1 - Identities and credentials are issued and managed
PR.AC-4 - Access rights are managed
PR.AC-6 - Appropriate access is enforced
DE.CM-1 - The network is monitored for unauthorized connections
DE.AE-1 - A baseline of network operations is established
🟡 ISO 27001:2022
A.5.1.1 - Information security policy
A.6.1.1 - Access control policy
A.6.2.1 - User registration and access rights
A.6.2.2 - Privileged access rights
A.8.1.1 - User endpoint devices
A.8.3.1 - Access control
A.12.4.1 - Event logging
A.12.4.3 - Administrator and operator logs
🟣 PCI DSS v4.0
Requirement 1.3 - Prohibit direct public access
Requirement 2.1 - Default security parameters
Requirement 6.2 - Security patches
Requirement 7.1 - Access control implementation
Requirement 8.1 - User identification
Requirement 10.2 - Automated audit trails
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Zoho:ManageEngine