CVE-2025-49181
📋 TL;DR
This vulnerability allows unauthorized users to access sensitive information via HTTP GET requests and modify critical service configurations via HTTP POST requests, potentially causing denial of service. It affects SICK industrial control systems with missing API endpoint authorization. Organizations using affected SICK products are at risk.
💻 Affected Systems
- SICK industrial control systems and devices
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption through port and log path manipulation, combined with sensitive data exfiltration leading to operational shutdown and data breach.
Likely Case
Unauthorized information gathering and service configuration tampering causing intermittent service interruptions.
If Mitigated
Limited impact with proper network segmentation and access controls preventing unauthorized API access.
🎯 Exploit Status
Simple HTTP requests can trigger both information disclosure and configuration modification.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://sick.com/psirt
Restart Required: Yes
Instructions:
1. Review SICK PSIRT advisory. 2. Download and apply recommended firmware/software updates. 3. Restart affected services/systems. 4. Verify fixes using verification steps.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks using firewalls or VLANs.
API Endpoint Restriction
allBlock access to vulnerable API endpoints using web application firewall or access control lists.
🧯 If You Can't Patch
- Implement strict network access controls to limit API endpoint exposure
- Monitor for unauthorized HTTP GET/POST requests to affected endpoints
🔍 How to Verify
Check if Vulnerable:
Test if unauthorized HTTP GET requests to API endpoints return sensitive data or if POST requests can modify configurations without authentication.Check Version:
Consult device/system documentation for version checking; typically via web interface or CLI commands specific to SICK products.Verify Fix Applied:
Verify that API endpoints now require proper authentication and authorization checks.📡 Detection & Monitoring
Log Indicators:
- Unauthorized HTTP GET/POST requests to API endpoints
- Unexpected changes to service configuration files
Network Indicators:
- Unusual HTTP traffic patterns to API endpoints from unauthorized sources
SIEM Query:
source_ip NOT IN authorized_list AND (http_method:GET OR http_method:POST) AND uri_path CONTAINS "/api/"🔗 References
- https://cdn.sick.com/media/docs/1/11/411/Special_information_CYBERSECURITY_BY_SICK_en_IM0084411.PDF
- https://sick.com/psirt
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
- https://www.first.org/cvss/calculator/3.1
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0007.json
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0007.pdf
