CVE-2017-14728
📋 TL;DR
CVE-2017-14728 is an authentication bypass vulnerability in SiteOmat BOS software that allows attackers to bypass authentication mechanisms and gain unauthorized access. All SiteOmat BOS versions prior to the exploit submission are affected, and the system doesn't enforce password changes, leaving SSH and HTTP authentication vulnerable.
💻 Affected Systems
- SiteOmat BOS (Station Controller Software)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to gain administrative access, manipulate station controller operations, and potentially disrupt critical infrastructure operations.
Likely Case
Unauthorized access to the SiteOmat system allowing configuration changes, data theft, and potential manipulation of station controller functions.
If Mitigated
Limited impact with proper network segmentation and access controls preventing external exploitation.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity. The CWE-798 (Use of Hard-coded Credentials) suggests potential hard-coded credentials or predictable authentication mechanisms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown specific version - Contact Orpak for updated versions
Vendor Advisory: https://ics-cert.us-cert.gov/advisories/ICSA-19-122-01
Restart Required: Yes
Instructions:
1. Contact Orpak support for patched version 2. Backup current configuration 3. Apply vendor-provided patch 4. Restart system 5. Verify authentication mechanisms
🔧 Temporary Workarounds
Network Segmentation
allIsolate SiteOmat systems from untrusted networks and implement strict firewall rules
Access Control Restrictions
linuxImplement IP whitelisting and restrict SSH/HTTP access to authorized IPs only
iptables -A INPUT -p tcp --dport 22 -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation and zero-trust architecture around SiteOmat systems
- Enable comprehensive logging and monitoring for authentication attempts and system access
🔍 How to Verify
Check if Vulnerable:
Check SiteOmat version against vendor advisory. Test authentication mechanisms for bypass possibilities.Check Version:
Contact Orpak support or check system documentation for version informationVerify Fix Applied:
Verify with vendor that patched version is installed. Test authentication mechanisms to ensure proper validation.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Unusual SSH or HTTP access patterns
- Authentication logs showing bypass patterns
Network Indicators:
- Unusual SSH/HTTP traffic to SiteOmat systems
- Authentication requests from unexpected sources
SIEM Query:
source="siteomat" AND (event_type="auth" OR event_type="access") AND result="success" AND (src_ip NOT IN [authorized_ips])🔗 References
- http://www.orpak.com/allproducts/siteomat-station-controller-sw/
- http://www.securityfocus.com/bid/108167
- https://ics-cert.us-cert.gov/advisories/ICSA-19-122-01
- http://www.orpak.com/allproducts/siteomat-station-controller-sw/
- http://www.securityfocus.com/bid/108167
- https://ics-cert.us-cert.gov/advisories/ICSA-19-122-01
