CVE-2025-31357
📋 TL;DR
This vulnerability allows unauthenticated attackers to retrieve a user's plant list by simply knowing their username. It affects systems using vulnerable software that exposes this information without proper authorization checks. Organizations using affected products in their industrial control systems are at risk.
💻 Affected Systems
- Specific product names not provided in advisory
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could map organizational structures, identify critical assets, and use this reconnaissance data for targeted attacks on industrial control systems.
Likely Case
Information disclosure that reveals operational details, potentially enabling social engineering or facilitating more sophisticated attacks.
If Mitigated
Limited exposure with proper network segmentation and access controls preventing external attackers from reaching vulnerable interfaces.
🎯 Exploit Status
Simple HTTP request with known username parameter likely sufficient for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-25-105-04
Restart Required: No
Instructions:
1. Review ICSA-25-105-04 for vendor-specific guidance
2. Contact your ICS vendor for patch availability
3. Apply vendor-recommended updates following change control procedures
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks
Access Control Lists
allRestrict access to vulnerable interfaces to authorized users only
🧯 If You Can't Patch
- Implement strict network segmentation to prevent external access
- Deploy web application firewall rules to block unauthorized plant list queries
🔍 How to Verify
Check if Vulnerable:
Test if unauthenticated requests to plant list endpoints with known usernames return dataCheck Version:
Check with vendor for specific version verification commandsVerify Fix Applied:
Verify that authentication and authorization checks are properly implemented before returning sensitive data📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to plant list endpoints
- Multiple failed authentication attempts followed by successful plant list queries
Network Indicators:
- Unusual patterns of requests to user/plant endpoints from external IPs
SIEM Query:
source_ip NOT IN trusted_networks AND (uri CONTAINS 'plant' OR uri CONTAINS 'user') AND response_code=200