CVE-2017-14854
📋 TL;DR
A stack buffer overflow vulnerability in Orpak SiteOmat CGI components allows remote attackers to execute arbitrary code on affected systems. This affects all versions prior to September 25, 2017, putting organizations using Orpak SiteOmat for fuel management and forecourt operations at risk.
💻 Affected Systems
- Orpak SiteOmat
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the SiteOmat server, potentially leading to data theft, service disruption, or lateral movement into connected fuel management systems.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or disrupt fuel management operations at gas stations and forecourts.
If Mitigated
Limited impact if proper network segmentation and access controls prevent exploitation attempts from reaching vulnerable systems.
🎯 Exploit Status
Buffer overflow vulnerabilities in CGI components are typically straightforward to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions from 2017-09-25 onward
Vendor Advisory: http://www.orpak.com
Restart Required: Yes
Instructions:
1. Contact Orpak support for updated firmware/software. 2. Backup current configuration. 3. Apply the patch/update provided by Orpak. 4. Restart the SiteOmat system. 5. Verify functionality.
🔧 Temporary Workarounds
Network Segmentation
linuxIsolate SiteOmat systems from untrusted networks and restrict access to authorized IPs only.
iptables -A INPUT -p tcp --dport [SITEO_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [SITEO_PORT] -j DROP
CGI Component Disablement
linuxDisable or remove vulnerable CGI components if they are not essential for operations.
mv /path/to/vulnerable_cgi /path/to/vulnerable_cgi.disabled
🧯 If You Can't Patch
- Implement strict network access controls to limit connections to SiteOmat systems
- Deploy web application firewall (WAF) rules to detect and block buffer overflow attempts
🔍 How to Verify
Check if Vulnerable:
Check SiteOmat version date - if earlier than September 25, 2017, the system is vulnerable.Check Version:
Check via SiteOmat web interface or contact Orpak support for version verification commands.Verify Fix Applied:
Verify the SiteOmat version shows a date of September 25, 2017 or later in the system information.📡 Detection & Monitoring
Log Indicators:
- Unusual CGI component access patterns
- Large or malformed HTTP requests to SiteOmat CGI endpoints
- System crash or restart logs
Network Indicators:
- Unusual traffic to SiteOmat CGI ports from unexpected sources
- Patterns matching buffer overflow exploitation attempts
SIEM Query:
source="sitcomat" AND (uri="*.cgi" OR method="POST" AND size>10000)