CVE-2024-55634
📋 TL;DR
This vulnerability in Drupal Core allows attackers to escalate privileges, potentially gaining administrative access to Drupal sites. It affects Drupal installations running vulnerable versions from 8.0.0 through 11.0.7. All Drupal sites using affected versions are at risk.
💻 Affected Systems
- Drupal Core
📦 What is this software?
Drupal by Drupal
Drupal by Drupal
Drupal by Drupal
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full administrative control over the Drupal site, allowing them to modify content, install malicious modules, access sensitive data, or compromise the underlying server.
Likely Case
Attackers with existing low-privilege accounts escalate to administrative privileges, enabling content manipulation, user management, and potential further system compromise.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized privilege changes that can be detected and reversed.
🎯 Exploit Status
Exploitation requires some level of access to the Drupal site, but detailed technical information is not publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.2.11, 10.3.9, 11.0.8
Vendor Advisory: https://www.drupal.org/sa-core-2024-004
Restart Required: No
Instructions:
1. Backup your Drupal site and database. 2. Update Drupal Core to the patched version using Composer: 'composer update drupal/core-recommended --with-dependencies'. 3. Run database updates: 'drush updatedb' or via admin interface. 4. Clear caches: 'drush cr' or via admin interface.
🔧 Temporary Workarounds
Temporary Access Restriction
allRestrict user account creation and privilege changes until patching can be completed.
🧯 If You Can't Patch
- Implement strict access controls and monitor user privilege changes closely.
- Isolate the Drupal instance from other critical systems and implement network segmentation.
🔍 How to Verify
Check if Vulnerable:
Check Drupal version via admin interface at /admin/reports/status or run 'drush status' to see Drupal version.Check Version:
drush status | grep 'Drupal version'Verify Fix Applied:
Verify version is 10.2.11, 10.3.9, or 11.0.8 or higher using same methods.📡 Detection & Monitoring
Log Indicators:
- Unexpected user role changes
- Administrative actions from non-admin users
- Failed permission escalation attempts
Network Indicators:
- Unusual authentication patterns to admin interfaces
SIEM Query:
source="drupal" AND (event_type="user_role_change" OR event_type="permission_grant")