CVE-2024-5962
📋 TL;DR
A reflected cross-site scripting (XSS) vulnerability in WSO2 authentication endpoints allows attackers to inject malicious JavaScript into the authentication flow. This affects users of multiple WSO2 products who access vulnerable authentication interfaces. While session cookies are protected, attackers can still manipulate browser behavior.
💻 Affected Systems
- WSO2 Identity Server
- WSO2 API Manager
- WSO2 Enterprise Integrator
- WSO2 Micro Integrator
- WSO2 Streaming Integrator
- WSO2 Micro Gateway
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could redirect users to malicious sites, modify authentication UI to steal credentials, or exfiltrate sensitive browser data through injected JavaScript.
Likely Case
Attackers craft phishing links that execute JavaScript when users click them, potentially stealing credentials or redirecting to malicious sites during authentication.
If Mitigated
With proper input validation and output encoding, the vulnerability is prevented; existing httpOnly cookies remain protected from session hijacking.
🎯 Exploit Status
Reflected XSS typically requires user to click malicious link; no authentication needed to trigger vulnerability
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: See vendor advisory for specific product versions
Vendor Advisory: https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2024/WSO2-2024-3443/
Restart Required: Yes
Instructions:
1. Review vendor advisory for affected products. 2. Apply recommended patches or upgrades. 3. Restart affected services. 4. Verify fix implementation.
🔧 Temporary Workarounds
Input Validation Filter
allImplement web application firewall or input validation to sanitize authentication endpoint parameters
Content Security Policy
allImplement strict CSP headers to limit script execution
🧯 If You Can't Patch
- Implement WAF rules to detect and block XSS payloads in authentication requests
- Educate users about phishing risks and suspicious authentication URLs
🔍 How to Verify
Check if Vulnerable:
Test authentication endpoints with XSS payloads in URL parameters; monitor for script executionCheck Version:
Check product documentation for version command specific to each WSO2 productVerify Fix Applied:
Retest with XSS payloads after patching; verify scripts are properly encoded and not executed📡 Detection & Monitoring
Log Indicators:
- Unusual parameter values in authentication requests
- JavaScript patterns in URL parameters
- Multiple failed authentication attempts with suspicious parameters
Network Indicators:
- HTTP requests to authentication endpoints with script tags or JavaScript in parameters
- Redirects to unexpected domains after authentication
SIEM Query:
source="wso2-auth-logs" AND (param="*<script>*" OR param="*javascript:*" OR param="*onload=*" OR param="*onerror=*")