Multiple Vulnerabilities in InterMesh Subscriber Devices
Act Now10SSA-333468Oct 23, 2024
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary
InterMesh Subscriber devices (7177 Hybrid 2.0 and 7707 Fire models) contain multiple vulnerabilities that allow unauthenticated remote code execution with root privileges. The issues stem from missing authentication checks (CWE-306), insufficient privilege separation (CWE-250, CWE-266), and command injection (CWE-78). An attacker with network access can execute arbitrary commands, gaining complete control of the affected device.
What this means
What could happen
An unauthenticated attacker on the network can run arbitrary code with root privileges on affected InterMesh Subscriber devices, enabling complete control over fire suppression or building automation systems and potentially disrupting critical safety operations.
Who's at risk
Organizations operating Siemens InterMesh fire suppression control systems and building automation networks should prioritize this update. The 7177 Hybrid 2.0 and 7707 Fire Subscriber devices are commonly used in commercial buildings, data centers, and industrial facilities for fire detection and suppression coordination.
How it could be exploited
An attacker with network access to the device exploits the authentication and privilege escalation vulnerabilities (CWE-306, CWE-250, CWE-266) combined with command injection (CWE-78) to execute arbitrary commands as root. No credentials or user interaction required.
Prerequisites
- Network access to the InterMesh Subscriber device
- Device running vulnerable firmware version (7177 Hybrid 2.0 < V8.2.12 or 7707 Fire < V7.2.12)
Remotely exploitableNo authentication requiredLow complexity attackHigh CVSS score (10.0)Affects safety systems (fire suppression)Complete system compromise possible
Exploitability
Moderate exploit probability (EPSS 2.9%)
Affected products (2)
2 with fix
ProductAffected VersionsFix Status
InterMesh 7177 Hybrid 2.0 Subscriber< V8.2.128.2.12
InterMesh 7707 Fire Subscriber< V7.2.127.2.12
Remediation & Mitigation
0/4
Do now
0/1HARDENINGRestrict network access to InterMesh Subscriber devices using firewall rules; allow only authorized management workstations and control systems
Schedule — requires maintenance window
0/3Patching may require device reboot — plan for process interruption
InterMesh 7177 Hybrid 2.0 Subscriber
HOTFIXUpdate InterMesh 7177 Hybrid 2.0 Subscriber to firmware version 8.2.12 or later
InterMesh 7707 Fire Subscriber
HOTFIXUpdate InterMesh 7707 Fire Subscriber to firmware version 7.2.12 or later
All products
HOTFIXVerify device network connectivity and apply updates during planned maintenance windows to minimize operational impact
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