CVE-2025-27454
📋 TL;DR
This CSRF vulnerability allows attackers to trick authenticated users into performing unintended actions on their behalf. Attackers can craft malicious requests that execute with the victim's session privileges. All users of the vulnerable application are affected when logged in.
💻 Affected Systems
- SICK application(s)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, data theft, or unauthorized administrative actions if the victim has high privileges.
Likely Case
Unauthorized state changes like profile modifications, password changes, or data deletion.
If Mitigated
Limited impact with proper CSRF protections, though some risk remains for state-changing operations.
🎯 Exploit Status
Exploitation requires social engineering to trick users into visiting malicious pages while authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://sick.com/psirt
Restart Required: No
Instructions:
1. Check vendor advisory at sick.com/psirt
2. Apply recommended patches or updates
3. Verify CSRF protections are enabled
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing forms and requests
SameSite Cookie Attribute
allSet SameSite=Strict or Lax on session cookies
Set-Cookie: session=value; SameSite=Strict; Secure; HttpOnly
🧯 If You Can't Patch
- Implement web application firewall rules to detect CSRF patterns
- Require re-authentication for sensitive operations
🔍 How to Verify
Check if Vulnerable:
Test forms and state-changing endpoints for missing CSRF tokens or SameSite cookie attributesCheck Version:
Check application version in admin interface or via vendor documentationVerify Fix Applied:
Verify all POST/PUT/DELETE requests require valid CSRF tokens and cookies have SameSite attributes📡 Detection & Monitoring
Log Indicators:
- Multiple failed CSRF token validations
- State changes from unexpected referrers
Network Indicators:
- Requests with missing or invalid CSRF tokens
- Cross-origin POST requests to sensitive endpoints
SIEM Query:
web_requests WHERE (method IN ('POST', 'PUT', 'DELETE')) AND (csrf_token IS NULL OR csrf_token INVALID) AND response_code = 200🔗 References
- https://sick.com/psirt
- https://sick.com/psirt
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
- https://www.endress.com
- https://www.first.org/cvss/calculator/3.1
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.json
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdf
