Emerson Rosemount GC370XA, GC700XA, GC1500XA
Act Now9.8ICS-CERT ICSA-24-030-01Jan 30, 2024
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary
These Emerson Rosemount gas chromatographs contain multiple command injection and authentication bypass vulnerabilities. An unauthenticated attacker with network access can run arbitrary commands with administrative privileges, access sensitive instrument data, cause the device to stop responding, or bypass authentication controls. Affected products are the GC370XA, GC700XA, and GC1500XA running firmware version 4.1.5 or earlier. The vulnerabilities are classified as high-complexity attacks, and no public exploitation has been reported. However, Emerson has not announced fixed firmware versions and recommends contacting support for patching options.
What this means
What could happen
An unauthenticated attacker with network access could remotely run arbitrary commands on these gas chromatographs, potentially altering analysis results, shutting down the instrument, or stealing calibration and sample data critical to environmental or process monitoring.
Who's at risk
Laboratories and manufacturing facilities using Emerson Rosemount gas chromatographs (GC370XA, GC700XA, GC1500XA) for process analysis, quality control, or environmental monitoring. This includes refineries, chemical plants, pharmaceutical manufacturers, and environmental testing facilities.
How it could be exploited
An attacker on the same network as the instrument sends a crafted network request to the device. The device accepts the request without requiring authentication and executes embedded commands with administrative privileges. No user interaction or special conditions are needed.
Prerequisites
- Network access to the device's listening port
- Device must be powered on and running firmware version 4.1.5 or earlier
remotely exploitableno authentication requiredno patch availableaffects measurement and safety-critical analysis
Exploitability
Low exploit probability (EPSS 0.3%)
Affected products (3)
3 EOL
ProductAffected VersionsFix Status
GC370XA: <=4.1.5≤ 4.1.5No fix (EOL)
GC700XA: <=4.1.5≤ 4.1.5No fix (EOL)
GC1500XA: <=4.1.5≤ 4.1.5No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/3HOTFIXContact Emerson Tech Support (GC.CSC@emerson.com) to determine firmware update availability and procedure for your specific model and network configuration
HARDENINGIsolate the gas chromatograph network from the business network using a firewall, firewall rules, or network segmentation. Only permit necessary connections for legitimate operations
HARDENINGEnsure the device is not accessible from the Internet. Remove any port forwarding or VPN rules that expose the instrument directly to outside networks
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
WORKAROUNDIf remote access is necessary, implement a dedicated VPN connection from an authorized engineering workstation to the instrument network, separate from standard business VPN
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