CVE-2024-13277
📋 TL;DR
This vulnerability allows attackers to bypass authorization controls in Drupal Smart IP Ban module, enabling forceful browsing to access restricted content. It affects Drupal 7 websites using Smart IP Ban module versions 7.X-1.0 through 7.X-1.1. Attackers can access pages they shouldn't have permission to view.
💻 Affected Systems
- Drupal Smart IP Ban module
📦 What is this software?
Smart Ip Ban by Smart Ip Ban Project
⚠️ Risk & Real-World Impact
Worst Case
Complete site compromise through privilege escalation, allowing attackers to access administrative interfaces, modify content, or extract sensitive data.
Likely Case
Unauthorized access to restricted content, user data exposure, and potential information disclosure.
If Mitigated
Limited impact with proper access controls and monitoring, but still represents a security policy violation.
🎯 Exploit Status
Exploitation requires some understanding of Drupal's URL structure but is straightforward once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.X-1.1
Vendor Advisory: https://www.drupal.org/sa-contrib-2024-041
Restart Required: No
Instructions:
1. Update Smart IP Ban module to version 7.X-1.1 or later. 2. Clear Drupal cache. 3. Verify module functionality post-update.
🔧 Temporary Workarounds
Disable Smart IP Ban module
allTemporarily disable the vulnerable module until patching is possible
drush pm-disable smart_ip_ban
Implement additional access controls
allAdd extra permission checks in custom code or use Drupal's built-in access control mechanisms
🧯 If You Can't Patch
- Implement web application firewall rules to block suspicious URL patterns
- Increase monitoring of access logs for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check Drupal modules page or use 'drush pm-list' to see if smart_ip_ban module is installed and version is 7.X-1.0Check Version:
drush pm-list --type=module --status=enabled | grep smart_ip_banVerify Fix Applied:
Confirm smart_ip_ban module version is 7.X-1.1 or later using 'drush pm-list' or Drupal modules page📡 Detection & Monitoring
Log Indicators:
- Multiple 403 errors followed by 200 successes for same user
- Access to admin pages from non-admin users
- Unusual URL patterns accessing restricted content
Network Indicators:
- Repeated requests to protected URLs with different parameters
- Bypass of authentication mechanisms
SIEM Query:
source="drupal_access_log" AND (status=200 AND uri IN ("/admin/*", "/user/*/edit")) AND user_role!="administrator"