CVE-2024-7487
📋 TL;DR
This vulnerability allows attackers to bypass app-native authentication in WSO2 Identity Server 7.0.0 by passing invalid objects. Organizations using WSO2 Identity Server 7.0.0 for identity and access management are affected, potentially allowing unauthorized access to protected resources.
💻 Affected Systems
- WSO2 Identity Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of authentication system allowing unauthorized access to all protected applications and data.
Likely Case
Unauthorized access to specific applications using app-native authentication, potentially leading to data breaches or privilege escalation.
If Mitigated
Limited impact with proper network segmentation and monitoring, but authentication bypass still possible.
🎯 Exploit Status
Exploitation requires sending specially crafted requests to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.0.0.1 or later
Vendor Advisory: https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2024/WSO2-2024-3348/
Restart Required: Yes
Instructions:
1. Download the patch from WSO2 support portal. 2. Backup current installation. 3. Apply patch according to WSO2 documentation. 4. Restart the Identity Server. 5. Verify patch application.
🔧 Temporary Workarounds
Disable app-native authentication
allTemporarily disable the vulnerable authentication method until patching is complete.
Modify identity.xml to disable app-native authentication features
Network access restrictions
allRestrict access to vulnerable endpoints using firewall rules or WAF.
Configure firewall to restrict access to /oauth2/token and related endpoints
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WSO2 Identity Server from critical systems
- Enable detailed logging and monitoring for authentication bypass attempts
🔍 How to Verify
Check if Vulnerable:
Check if running WSO2 Identity Server version 7.0.0 and app-native authentication is enabled.Check Version:
Check wso2server.sh startup logs or product-version file in installation directoryVerify Fix Applied:
Verify version is 7.0.0.1 or later and test app-native authentication with invalid objects.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts with unusual object parameters
- Successful authentications with malformed requests
Network Indicators:
- HTTP requests to /oauth2/token with unusual parameters
- Authentication bypass patterns in traffic
SIEM Query:
source="wso2-identity-server" AND (message="authentication bypass" OR message="invalid object" OR status="200" AND auth_method="app-native")