CVE-2012-2714
📋 TL;DR
This vulnerability in the Drupal BrowserID (Mozilla Persona) module allows remote attackers to hijack user authentication sessions by manipulating the audience identifier parameter. Attackers can impersonate any user account on affected Drupal sites. All Drupal sites using the vulnerable BrowserID module versions are affected.
💻 Affected Systems
- Drupal BrowserID (Mozilla Persona) module
📦 What is this software?
Browserid by Browserid Project
Browserid by Browserid Project
Browserid by Browserid Project
⚠️ Risk & Real-World Impact
Worst Case
Complete site compromise where attackers gain administrative privileges, access sensitive data, modify content, and potentially pivot to other systems.
Likely Case
Account takeover of regular users leading to unauthorized access to personal data, content manipulation, and privilege escalation.
If Mitigated
Limited impact with proper authentication monitoring, session management, and network segmentation in place.
🎯 Exploit Status
The vulnerability is well-documented with public proof-of-concept available, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.x-1.3
Vendor Advisory: http://drupal.org/node/1597414
Restart Required: No
Instructions:
1. Update the BrowserID module to version 7.x-1.3 or later. 2. Navigate to Drupal admin panel. 3. Go to Modules section. 4. Update the BrowserID module. 5. Clear Drupal cache.
🔧 Temporary Workarounds
Disable BrowserID Module
linuxTemporarily disable the vulnerable module until patching is possible
drush pm-disable browserid
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to authentication endpoints
- Enable detailed authentication logging and monitor for suspicious authentication patterns
🔍 How to Verify
Check if Vulnerable:
Check Drupal modules list for BrowserID module version. Vulnerable if version is 7.x-1.0, 7.x-1.1, or 7.x-1.2.Check Version:
drush pm-list | grep browseridVerify Fix Applied:
Confirm BrowserID module version is 7.x-1.3 or later in Drupal modules administration page.📡 Detection & Monitoring
Log Indicators:
- Multiple authentication attempts from same IP with different user agents
- Unusual authentication patterns in Drupal watchdog logs
- Failed authentication attempts followed by successful logins from same source
Network Indicators:
- Unusual traffic to /browserid endpoints
- Authentication requests with manipulated audience parameters
SIEM Query:
source="drupal" AND (event_type="user_login" OR event_type="authentication") | stats count by src_ip, user🔗 References
- http://drupal.org/node/1597414
- http://www.openwall.com/lists/oss-security/2012/06/14/3
- http://www.securityfocus.com/bid/53673
- https://drupal.org/node/1596464
- http://drupal.org/node/1597414
- http://www.openwall.com/lists/oss-security/2012/06/14/3
- http://www.securityfocus.com/bid/53673
- https://drupal.org/node/1596464
