CVE-2023-28718
📋 TL;DR
CVE-2023-28718 is a Cross-Site Request Forgery (CSRF) vulnerability in Osprey Pump Controller version 1.01 that allows attackers to perform unauthorized actions with administrative privileges. An attacker can trick a logged-in administrator into visiting a malicious website, which then sends forged HTTP requests to the controller. This affects all users of Osprey Pump Controller version 1.01 in industrial control system environments.
💻 Affected Systems
- Osprey Pump Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of pump controller allowing remote attackers to modify pump operations, disable safety controls, or cause physical damage to industrial systems.
Likely Case
Unauthorized configuration changes to pump settings, disruption of industrial processes, or data exfiltration from the controller.
If Mitigated
Limited impact with proper network segmentation and CSRF protections in place, potentially only affecting non-critical configuration changes.
🎯 Exploit Status
Exploitation requires the victim to be logged into the controller and visit a malicious website. No authentication bypass is needed as the attack uses the victim's existing session.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.02 or later
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-082-06
Restart Required: Yes
Instructions:
1. Contact Osprey vendor for patch version 1.02 or later. 2. Backup current configuration. 3. Apply firmware update following vendor instructions. 4. Restart controller. 5. Verify functionality post-update.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection tokens to all state-changing HTTP requests
Requires custom web application modifications - consult vendor for implementation details
Network Segmentation
allIsolate pump controller network from general corporate and internet access
Configure firewall rules to restrict access to controller IP/port from trusted networks only
🧯 If You Can't Patch
- Implement strict network segmentation to isolate controller from internet and untrusted networks
- Use browser extensions that block CSRF attacks and enforce same-origin policies for controller access
🔍 How to Verify
Check if Vulnerable:
Check controller web interface version via admin panel or SSH into controller and check firmware versionCheck Version:
ssh admin@controller_ip 'show version' or check web interface admin panelVerify Fix Applied:
Verify firmware version is 1.02 or later in admin panel and test CSRF protection by attempting to submit forms without proper tokens📡 Detection & Monitoring
Log Indicators:
- Multiple failed state-change requests from same IP
- Configuration changes without corresponding admin login events
- HTTP POST requests missing CSRF tokens
Network Indicators:
- HTTP requests to controller from unexpected sources
- Cross-origin requests to controller endpoints
- Sudden configuration changes via web interface
SIEM Query:
source="osprey-controller" AND (http_method="POST" OR http_method="PUT") AND NOT csrf_token=*