CVE-2025-43827
📋 TL;DR
This CVE describes an Insecure Direct Object Reference (IDOR) vulnerability in Liferay Portal and DXP that allows authenticated users from one virtual instance to view audit events from different virtual instances. Attackers can exploit this by manipulating the auditEventId parameter to access audit logs they shouldn't have permission to view. This affects multiple versions of Liferay Portal and DXP across various release channels.
💻 Affected Systems
- Liferay Portal
- Liferay DXP
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could access sensitive audit logs from other virtual instances, potentially revealing user activities, administrative actions, or other confidential audit trail data across organizational boundaries.
Likely Case
Authenticated users with malicious intent could view audit events from other departments or business units within the same Liferay deployment, violating data segregation and potentially exposing sensitive operational information.
If Mitigated
With proper access controls and virtual instance isolation, the impact is limited to viewing audit logs that should already be properly secured and contain minimal sensitive data.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of valid audit event IDs from other virtual instances. Attackers need to understand Liferay's virtual instance architecture and parameter structure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Liferay Portal 7.4.3.118+; Liferay DXP 2024.Q1.6+, 2023.Q4.11+, 2023.Q3.11+, 7.4 update 93+
Vendor Advisory: https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43827
Restart Required: No
Instructions:
1. Download the appropriate fix pack from Liferay's customer portal. 2. Apply the fix pack according to Liferay's deployment documentation. 3. Verify the fix by testing audit event access across virtual instances.
🔧 Temporary Workarounds
Virtual Instance Access Restriction
allImplement additional access controls at the network or application level to restrict users to their assigned virtual instances only.
Audit Portlet Disablement
allTemporarily disable the audit portlet for non-administrative users if audit functionality is not critical for their roles.
🧯 If You Can't Patch
- Implement strict network segmentation between virtual instances to prevent cross-instance access
- Add application-level validation to verify users belong to the virtual instance they're attempting to access audit events from
🔍 How to Verify
Check if Vulnerable:
Test if authenticated users from one virtual instance can access audit events from another virtual instance by manipulating the _com_liferay_portal_security_audit_web_portlet_AuditPortlet_auditEventId parameter.Check Version:
Check Liferay version via Control Panel → Configuration → Server Administration → System InformationVerify Fix Applied:
After patching, attempt the same cross-virtual instance audit event access test; it should fail with proper access denied errors.📡 Detection & Monitoring
Log Indicators:
- Multiple failed audit event access attempts from same user across different virtual instances
- Successful audit event access logs showing cross-virtual instance access patterns
Network Indicators:
- Unusual patterns of audit-related API calls from users accessing multiple virtual instance endpoints
SIEM Query:
source="liferay" AND (event_type="audit_access" OR event_type="security_event") AND (virtual_instance_changes OR cross_instance_access)