CVE-2025-48010
📋 TL;DR
This CVE describes an authentication bypass vulnerability in the Drupal One Time Password module that allows attackers to bypass functionality by using alternate paths or channels. It affects Drupal sites using the One Time Password module versions before 1.3.0. The vulnerability enables attackers to bypass intended security controls without proper authentication.
💻 Affected Systems
- Drupal One Time Password module
📦 What is this software?
One Time Password by One Time Password Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could bypass multi-factor authentication entirely, gaining unauthorized access to user accounts and potentially administrative functions.
Likely Case
Attackers bypass OTP verification for specific functionality, potentially accessing restricted content or performing actions without proper authentication.
If Mitigated
With proper network segmentation and additional authentication layers, impact is limited to specific functionality bypass rather than full account compromise.
🎯 Exploit Status
Exploitation requires understanding of Drupal's authentication flow and the specific bypass mechanism.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.0
Vendor Advisory: https://www.drupal.org/sa-contrib-2025-061
Restart Required: No
Instructions:
1. Update the One Time Password module to version 1.3.0 or later via Drupal's update manager or Composer. 2. Clear Drupal caches. 3. Verify the update was successful.
🔧 Temporary Workarounds
Disable One Time Password module
allTemporarily disable the vulnerable module until patching is possible
drush pm:disable one_time_password
Implement additional authentication layer
allAdd IP-based restrictions or additional authentication checks for affected functionality
🧯 If You Can't Patch
- Implement network segmentation to isolate affected systems
- Enable detailed logging and monitoring for authentication bypass attempts
🔍 How to Verify
Check if Vulnerable:
Check Drupal's module list for One Time Password version. If version is below 1.3.0, the system is vulnerable.Check Version:
drush pm:list | grep one_time_passwordVerify Fix Applied:
Verify module version is 1.3.0 or higher and test OTP functionality works correctly.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Unusual authentication patterns bypassing OTP
Network Indicators:
- Requests to authentication endpoints without proper OTP validation
SIEM Query:
source="drupal" AND (event_type="authentication" AND otp_bypass="true")