📄 Description (English)
PHPUnit Command Injection Vulnerability — PHPUnit allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.
🤖 AI Executive Summary
CVE-2017-9841 is a critical command injection vulnerability in PHPUnit that allows remote attackers to execute arbitrary PHP code by sending HTTP POST requests containing PHP code to the exposed eval-stdin.php file. This vulnerability has a CVSS score of 9.0 and active exploits are widely available in the wild, making it extremely dangerous for any web application that inadvertently exposes the /vendor directory. Despite being discovered in 2017, this vulnerability continues to be actively exploited against unpatched and misconfigured systems. Organizations must immediately audit their web servers for exposed vendor directories and apply patches.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 9, 2026 06:49
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations across multiple sectors. Government portals and e-services platforms (regulated by NCA) running PHP applications are particularly vulnerable if vendor directories are exposed. Banking and financial institutions under SAMA regulation that use PHP-based web applications or customer portals could face remote code execution leading to data breaches. Saudi e-commerce platforms, healthcare portals (such as those connected to Seha or MOH systems), educational institutions, and telecom self-service portals (STC, Mobily, Zain) are all at risk. Energy sector web applications including contractor portals for ARAMCO and SEC could also be targeted. The widespread availability of automated exploit tools means Saudi organizations are likely being scanned continuously for this vulnerability.
🏢 Affected Saudi Sectors
Government
Banking
Healthcare
Energy
Telecommunications
E-commerce
Education
Retail
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Search all web servers for exposed PHPUnit eval-stdin.php files: find / -name 'eval-stdin.php' -path '*/phpunit/*' 2>/dev/null
2. Block external access to /vendor directories immediately via web server configuration (Apache .htaccess or Nginx location blocks)
3. Add WAF rules to block POST requests to */vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
Patching Guidance:
4. Update PHPUnit to version 7.5.19+, 8.5.1+, or 9.0+ where the vulnerability is fixed
5. Remove PHPUnit and other development dependencies from production environments entirely: composer install --no-dev
6. If using composer, ensure require-dev packages are never deployed to production
Compensating Controls:
7. Configure web server to deny access to all /vendor directories: Deny from all (Apache) or return 403 (Nginx)
8. Implement network segmentation to limit web server access
9. Deploy file integrity monitoring on web application directories
Detection Rules:
10. Monitor web server access logs for requests to eval-stdin.php: grep -r 'eval-stdin' /var/log/
11. Create IDS/IPS signatures for POST requests containing '<?php' to vendor paths
12. Monitor for unexpected PHP process spawning or outbound connections from web servers
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. البحث في جميع خوادم الويب عن ملفات eval-stdin.php المكشوفة في PHPUnit: find / -name 'eval-stdin.php' -path '*/phpunit/*' 2>/dev/null
2. حظر الوصول الخارجي إلى مجلدات /vendor فوراً عبر تهيئة خادم الويب (Apache .htaccess أو Nginx location blocks)
3. إضافة قواعد WAF لحظر طلبات POST إلى */vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
إرشادات التصحيح:
4. تحديث PHPUnit إلى الإصدار 7.5.19+ أو 8.5.1+ أو 9.0+ حيث تم إصلاح الثغرة
5. إزالة PHPUnit وجميع تبعيات التطوير من بيئات الإنتاج نهائياً: composer install --no-dev
6. التأكد من عدم نشر حزم require-dev على بيئات الإنتاج
الضوابط التعويضية:
7. تهيئة خادم الويب لرفض الوصول إلى جميع مجلدات /vendor
8. تطبيق تجزئة الشبكة للحد من الوصول إلى خادم الويب
9. نشر مراقبة سلامة الملفات على مجلدات تطبيقات الويب
قواعد الكشف:
10. مراقبة سجلات وصول خادم الويب بحثاً عن طلبات إلى eval-stdin.php
11. إنشاء توقيعات IDS/IPS لطلبات POST التي تحتوي على '<?php' إلى مسارات vendor
12. مراقبة عمليات PHP غير المتوقعة أو الاتصالات الصادرة من خوادم الويب
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2-3-1 (Web Application Security)
2-5-1 (Vulnerability Management)
2-6-1 (Secure Software Development)
2-9-1 (Change Management)
2-2-1 (Asset Management)
🔵 SAMA CSF
3.3.3 (Patch Management)
3.3.5 (Vulnerability Management)
3.3.4 (Secure Configuration)
3.4.1 (Application Security)
3.1.3 (Cyber Security Risk Management)
🟡 ISO 27001:2022
A.8.8 (Management of technical vulnerabilities)
A.8.9 (Configuration management)
A.8.25 (Secure development life cycle)
A.8.28 (Secure coding)
A.8.12 (Data leakage prevention)
🟣 PCI DSS v4.0
6.2 (Ensure all system components are protected from known vulnerabilities)
6.3 (Develop software applications securely)
6.4 (Follow change control processes)
6.5 (Address common coding vulnerabilities)
11.2 (Run vulnerability scans)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
PHPUnit:PHPUnit