CVE-2023-27394
📋 TL;DR
CVE-2023-27394 is an unauthenticated OS command injection vulnerability in Osprey Pump Controller version 1.01 that allows attackers to execute arbitrary shell commands via HTTP GET parameters. This affects industrial control systems using this specific pump controller software. Attackers can exploit this without any authentication.
💻 Affected Systems
- Osprey Pump Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, potentially disrupting pump operations, exfiltrating data, or using the system as a pivot point into industrial networks.
Likely Case
Remote code execution leading to system manipulation, data theft, or disruption of pump control operations.
If Mitigated
Limited impact if system is isolated behind firewalls with strict network segmentation and access controls.
🎯 Exploit Status
The vulnerability is straightforward to exploit via HTTP GET parameters. No authentication required makes it particularly dangerous.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-082-06
Restart Required: No
Instructions:
No official patch available. Follow CISA advisory recommendations for mitigation.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Osprey Pump Controller systems from untrusted networks and the internet.
Web Application Firewall
allDeploy WAF rules to block suspicious HTTP GET parameters and command injection patterns.
🧯 If You Can't Patch
- Implement strict network access controls to limit access to the controller only to authorized systems
- Monitor network traffic for suspicious HTTP requests to DataLogView.php, EventsView.php, and AlarmsView.php scripts
🔍 How to Verify
Check if Vulnerable:
Check if Osprey Pump Controller version 1.01 is installed and accessible via HTTP. Review system documentation or web interface for version information.Check Version:
Check web interface or system documentation for version information. No standard command available.Verify Fix Applied:
Since no patch is available, verify workarounds are implemented by checking network segmentation and access controls.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP GET requests to DataLogView.php, EventsView.php, or AlarmsView.php with suspicious parameters
- System command execution logs showing unexpected processes
Network Indicators:
- HTTP requests containing shell metacharacters or command injection patterns in GET parameters
- Unusual outbound connections from the pump controller system
SIEM Query:
source="web_logs" AND (uri="*DataLogView.php*" OR uri="*EventsView.php*" OR uri="*AlarmsView.php*") AND (param="*;*" OR param="*|*" OR param="*`*" OR param="*$(*")