Siemens SINEC Security Monitor
Act Now9.9ICS-CERT ICSA-24-284-06Oct 8, 2024
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary
SINEC Security Monitor versions prior to 4.9.0 contain multiple vulnerabilities including path traversal (CWE-22), command injection (CWE-77, CWE-88), and improper restriction of rendered UI layers (CWE-1230). These allow authenticated users with low privileges to escalate privileges, execute arbitrary code, and potentially compromise the security posture of monitored industrial networks. The vulnerabilities require valid user credentials and network access to the SINEC interface.
What this means
What could happen
An authenticated attacker with low-privilege access to SINEC Security Monitor could execute arbitrary code or commands with elevated privileges, potentially compromising the integrity of security monitoring across your entire industrial network and enabling control of critical systems.
Who's at risk
This affects utilities and municipalities running Siemens SINEC Security Monitor for network and industrial device monitoring. Critical for organizations monitoring PLCs, RTUs, and networked control equipment in water, electric, and other critical infrastructure. SINEC is commonly used as a centralized security and configuration management platform for Siemens industrial systems.
How it could be exploited
An attacker with valid user credentials (low-privilege account) can authenticate to SINEC Security Monitor and exploit multiple vulnerabilities including path traversal and command injection flaws to escalate privileges and execute arbitrary commands on the monitoring server. This could allow them to bypass security controls and manipulate monitoring data across connected industrial devices.
Prerequisites
- Valid user credentials for SINEC Security Monitor (low-privilege account)
- Network access to SINEC Security Monitor login interface (port varies by configuration)
- SINEC Security Monitor version prior to 4.9.0 must be deployed
Remotely exploitableRequires valid user credentials (authentication required)Low complexity to exploitHigh CVSS (9.9)Affects security monitoring infrastructureCould enable lateral movement and control system compromise
Exploitability
Moderate exploit probability (EPSS 3.0%)
Affected products (1)
ProductAffected VersionsFix Status
SINEC Security Monitor< 4.9.04.9.0
Remediation & Mitigation
0/4
Do now
0/1WORKAROUNDRestrict network access to SINEC Security Monitor management interface using firewall rules; limit to authorized engineering workstations and administrative networks only
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HOTFIXUpdate SINEC Security Monitor to version 4.9.0 or later
Long-term hardening
0/2HARDENINGImplement network segmentation to isolate SINEC Security Monitor and monitored ICS devices from business networks and internet access
HARDENINGEnforce strong authentication policies and regularly audit user account access to SINEC Security Monitor
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