CVE-2025-4416
📋 TL;DR
This vulnerability in Drupal Events Log Track module allows attackers to cause excessive resource allocation without limits, potentially leading to denial of service. It affects Drupal websites using vulnerable versions of the Events Log Track module. The issue exists in the module's resource allocation mechanism which lacks proper throttling controls.
💻 Affected Systems
- Drupal Events Log Track module
📦 What is this software?
Events Log Track by Events Log Track Project
Events Log Track by Events Log Track Project
⚠️ Risk & Real-World Impact
Worst Case
Complete denial of service causing website unavailability, potential resource exhaustion affecting other services on the same server, and possible system instability or crashes.
Likely Case
Degraded website performance, increased server resource consumption, and intermittent service disruptions affecting user experience.
If Mitigated
Minimal performance impact with proper resource monitoring and throttling controls in place.
🎯 Exploit Status
CWE-770 vulnerabilities typically involve simple resource exhaustion attacks that don't require complex exploitation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.1.11 or 4.0.2
Vendor Advisory: https://www.drupal.org/sa-contrib-2025-059
Restart Required: No
Instructions:
1. Update Drupal Events Log Track module to version 3.1.11 (for 3.x branch) or 4.0.2 (for 4.x branch). 2. Clear Drupal cache. 3. Verify module functionality after update.
🔧 Temporary Workarounds
Disable Events Log Track module
allTemporarily disable the vulnerable module until patching is possible
drush pm-disable events_log_track
Implement rate limiting
allAdd web server or application-level rate limiting for requests to the affected module
🧯 If You Can't Patch
- Implement strict rate limiting at the web server level (nginx/apache) for all requests
- Monitor server resource usage closely and set up alerts for abnormal consumption patterns
🔍 How to Verify
Check if Vulnerable:
Check Drupal admin interface at /admin/modules or run: drush pm-list | grep events_log_trackCheck Version:
drush pml --type=module --status=enabled --fields=name,version | grep events_log_trackVerify Fix Applied:
Verify module version is 3.1.11 or higher (3.x) or 4.0.2 or higher (4.x)📡 Detection & Monitoring
Log Indicators:
- Unusually high resource consumption
- Multiple rapid requests to events log endpoints
- Server memory/CPU spikes
Network Indicators:
- High volume of requests to /events-log or similar endpoints
- Abnormal traffic patterns from single IPs
SIEM Query:
source="drupal.log" AND ("events_log_track" OR "events-log") AND (status=500 OR response_time>5000)