CVE-2025-59870
📋 TL;DR
HCL MyXalytics uses a static JWT signing secret that never rotates, allowing attackers who obtain the secret to forge authentication tokens. This affects all deployments of HCL MyXalytics using the vulnerable configuration. Attackers could potentially authenticate as any user without valid credentials.
💻 Affected Systems
- HCL MyXalytics
📦 What is this software?
Myxalytics by Hcltech
Myxalytics by Hcltech
Myxalytics by Hcltech
Myxalytics by Hcltech
Myxalytics by Hcltech
Myxalytics by Hcltech
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where attackers forge administrative JWT tokens, gaining full access to all data and functionality as any user.
Likely Case
Attackers forge standard user tokens to access sensitive business data and perform unauthorized actions within the application.
If Mitigated
Limited impact with proper network segmentation and monitoring, though token forgery remains possible if secret is compromised.
🎯 Exploit Status
Exploitation requires obtaining the static JWT secret first, which could be through other vulnerabilities, insider access, or configuration leaks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched version
Vendor Advisory: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0128115
Restart Required: Yes
Instructions:
1. Review vendor advisory KB0128115 2. Apply the recommended patch/update 3. Restart the MyXalytics service 4. Regenerate all existing JWT tokens
🔧 Temporary Workarounds
Implement JWT Secret Rotation
allManually implement JWT secret rotation mechanism and invalidate existing tokens
# Requires application configuration changes - consult vendor documentation
Network Segmentation
allRestrict access to MyXalytics to trusted networks only
# Firewall rules to limit access to specific IP ranges
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the MyXalytics instance
- Enhance monitoring for unusual authentication patterns and JWT token usage
🔍 How to Verify
Check if Vulnerable:
Check if JWT signing secret is static and not rotating by reviewing application configuration filesCheck Version:
Check MyXalytics version through admin interface or application logsVerify Fix Applied:
Verify that JWT tokens now use rotating secrets and old tokens are rejected📡 Detection & Monitoring
Log Indicators:
- Multiple failed logins followed by successful authentication with unusual patterns
- JWT tokens with unusual issuance times or from unexpected sources
Network Indicators:
- Authentication requests from unexpected IP addresses
- Unusual volume of JWT token validation requests
SIEM Query:
source="myxalytics" AND (event_type="authentication" AND result="success") | stats count by user, src_ip | where count > threshold