CVE-2023-3069
📋 TL;DR
CVE-2023-3069 is an unverified password change vulnerability in coreBOS CRM that allows attackers to change any user's password without authentication or verification. This affects all coreBOS installations prior to version 8. Attackers can take over any account including administrative accounts.
💻 Affected Systems
- coreBOS CRM
📦 What is this software?
Corebos by Corebos
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where attackers gain administrative access, exfiltrate sensitive data, modify or delete critical business information, and potentially use the system as a foothold for further attacks.
Likely Case
Account takeover leading to unauthorized access to sensitive CRM data, business process disruption, and potential privilege escalation within the application.
If Mitigated
Limited impact if strong network segmentation, multi-factor authentication, and proper access controls are implemented alongside monitoring for suspicious password change activities.
🎯 Exploit Status
The vulnerability requires no authentication and has a simple exploitation path. Public proof-of-concept exists in the huntr.dev bounty report.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.0 and later
Vendor Advisory: https://github.com/tsolucio/corebos/commit/e3dabd74c68646bb54538d66411fc1e633ec454b
Restart Required: No
Instructions:
1. Update coreBOS to version 8.0 or later. 2. Apply the patch from commit e3dabd74c68646bb54538d66411fc1e633ec454b if updating is not possible. 3. Verify the password change functionality now requires proper authentication and verification.
🔧 Temporary Workarounds
Disable password change functionality
allTemporarily disable the password change feature until patching can be completed
Modify coreBOS configuration to remove or disable password change endpoints
Implement WAF rules
allBlock unauthorized password change requests at the web application firewall level
Add WAF rules to block POST requests to password change endpoints without proper session tokens
🧯 If You Can't Patch
- Implement network segmentation to isolate coreBOS from internet access
- Enable multi-factor authentication for all user accounts and monitor for suspicious password change activities
🔍 How to Verify
Check if Vulnerable:
Test if password change can be performed without authentication by attempting to change a user's password via the application's API or web interface without logging in.Check Version:
Check coreBOS version in the application's about page or via database query: SELECT version FROM vtiger_version;Verify Fix Applied:
Verify that password change now requires proper authentication and that the old password or verification step is mandatory.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful password change
- Password change requests from unusual IP addresses or user agents
- Password change requests without preceding authentication logs
Network Indicators:
- HTTP POST requests to password change endpoints without proper session cookies or authentication headers
- Unusual spikes in password change API calls
SIEM Query:
source="corebos_logs" AND (event="password_change" AND NOT (preceding_event="login_success" WITHIN 5m))