OTPulse

OPW Fuel Management Systems SiteSentinel

Plan PatchCVSS 9.8ICS-CERT ICSA-24-268-01Sep 24, 2024
Attack path
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

OPW Fuel Management Systems SiteSentinel contains an authentication bypass vulnerability (CWE-306) that allows remote attackers to gain full administrative privileges to the server without credentials. Successful exploitation could allow an attacker to modify fuel sales data, alter transaction records, disable monitoring, or disrupt fuel management operations. Affected versions: SiteSentinel prior to 17Q2.1.

What this means
What could happen
An attacker could bypass authentication on the SiteSentinel server and gain full administrative privileges, allowing them to modify fuel sales data, alter transaction records, disable monitoring, or shut down the fuel management system.
Who's at risk
Fuel station operators and fleet managers using OPW SiteSentinel fuel management systems should upgrade immediately. This vulnerability affects the server that tracks fuel sales, transactions, and system status across fuel dispensers and pumps.
How it could be exploited
An attacker with network access to the SiteSentinel server can send a specially crafted request that bypasses the authentication mechanism (CWE-306: Missing Authentication), achieving remote code execution and administrative access without valid credentials or user interaction.
Prerequisites
  • Network access to the SiteSentinel server (default or configured port)
  • No credentials required
remotely exploitableno authentication requiredlow complexitycritical CVSS (9.8)affects operational data integritypotential service disruption
Exploitability
Unlikely to be exploited — EPSS score 0.0%
Affected products (1)
ProductAffected VersionsFix Status
SiteSentinel: <17Q2.1<17Q2.117Q2.1
Remediation & Mitigation
0/4
Do now
0/3
HOTFIXUpgrade SiteSentinel to version 17Q2.1 or later immediately
WORKAROUNDIf remote access to SiteSentinel is required, deploy it behind a VPN with current security patches
HARDENINGPlace SiteSentinel server behind a firewall and restrict network access to authorized users and systems only
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HARDENINGSegment the fuel management system network from general IT networks to prevent lateral movement from compromised IT systems
View full CISA ICS-CERT advisory
API: /api/v1/advisories/535b3786-6813-4ef4-b651-1cc61517e477

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OPW Fuel Management Systems SiteSentinel | CVSS 9.8 - OTPulse