Listen to this Post
How the CVE Works
The vulnerability (CVE-2025-XXXXX) in Drupal’s Admin Audit Trail module stems from improper resource allocation controls. The module fails to enforce limits or throttling on log entries, allowing attackers to flood the audit trail with excessive data. This can lead to database bloating, degraded performance, or even denial-of-service (DoS) conditions. Attackers exploit this by sending a high volume of fake audit events, overwhelming storage and processing capabilities. The issue affects versions from 0.0.0 up to 1.0.4, patched in 1.0.5.
DailyCVE Form
Platform: Drupal CMS
Version: <1.0.5
Vulnerability: Resource exhaustion
Severity: High
Date: Jun 11, 2025
Prediction: Patch expected by Jun 25, 2025
What Undercode Say:
Exploitation Analysis
- Attack Vector: No authentication needed; unauthenticated POST requests to
/admin/audit-trail/log.
2. Payload Example:
curl -X POST -d "event=malicious_payload&user=attacker" http://victim-site/admin/audit-trail/log
3. Impact: Database crash, storage exhaustion, system slowdown.
Mitigation Steps
1. Immediate Workaround:
<LocationMatch "/admin/audit-trail/log"> Require valid-user LimitRequestBody 1024 </LocationMatch>
2. Permanent Fix: Upgrade to Admin Audit Trail 1.0.5+.
Detection Commands
1. Check installed version:
drush pm-list | grep "admin_audit_trail"
2. Monitor logs for spikes:
grep -c "POST /admin/audit-trail/log" /var/log/drupal/access.log
Database Cleanup (Post-Attack)
TRUNCATE TABLE audit_trail_logs; ALTER TABLE audit_trail_logs ADD size_limit INT DEFAULT 10000;
Automated Protection Script
import requests
from flask import Flask, abort
app = Flask(<strong>name</strong>)
@app.route('/audit-log', methods=['POST'])
def audit_log():
if len(request.data) > 1024:
abort(413)
Process log
return "Logged"
Final Advisory
- Vendor Patch: Apply via Composer:
composer update drupal/admin_audit_trail --with-dependencies
- Monitoring: Use fail2ban to block brute-force log spam.
- Backup: Ensure hourly backups if unpatched.
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
