CVE-2024-12372: Rockwell Power Monitor 1000 RCE Flaw

CVE-2024-12372 Overview

CVE-2024-12372 is a heap memory corruption vulnerability in the Rockwell Automation Power Monitor 1000. The flaw can be triggered remotely over the network without authentication or user interaction. Successful exploitation corrupts heap memory, which compromises system integrity and can result in remote code execution or a denial-of-service condition. Rockwell Automation tracks the issue under advisory SD1714. The weakness is categorized as [CWE-94] Improper Control of Generation of Code (Code Injection). Industrial environments running affected Power Monitor 1000 devices face direct operational risk, since these devices are commonly deployed in production networks for energy monitoring.

Critical Impact

Unauthenticated network attackers can corrupt heap memory on the Power Monitor 1000 to trigger denial-of-service or execute arbitrary code on the device.

Affected Products

• Rockwell Automation Power Monitor 1000
• See Rockwell Automation Security Advisory SD1714 for affected firmware versions

Discovery Timeline

• 2024-12-18 - CVE-2024-12372 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2024-12372

Vulnerability Analysis

The vulnerability resides in the network-facing logic of the Power Monitor 1000. Malformed input processed by the device corrupts structures on the heap. Heap corruption in embedded controllers typically overwrites adjacent allocator metadata or function pointers. This corruption can divert execution flow or crash the firmware service handling the request.

The issue is classified under [CWE-94], indicating improper control over code or data that influences program execution. The attack requires no privileges and no user interaction, and it is reachable across the network. An EPSS score in the 92nd percentile signals elevated likelihood of exploit development compared to typical industrial control system flaws.

Root Cause

The root cause is insufficient validation of attacker-supplied input that drives heap allocations or writes inside the device firmware. When the input crosses allocator boundaries or violates expected size assumptions, the heap state becomes inconsistent. Refer to the Rockwell Automation Security Advisory for the specific firmware components involved.

Attack Vector

An attacker reaches the device over the network and sends a crafted request to a service exposed by the Power Monitor 1000. The request triggers the corrupted heap operation. The outcome ranges from device reboot or service crash to attacker-controlled code execution on the device, depending on the heap layout at the time of exploitation. No code example is published; consult the vendor advisory for technical specifics.

Detection Methods for CVE-2024-12372

Indicators of Compromise

• Unexpected reboots, watchdog resets, or service crashes on Power Monitor 1000 devices
• Loss of communication with the device followed by recovery into a default state
• Anomalous inbound connections to Power Monitor 1000 management ports from outside the maintenance VLAN

Detection Strategies

• Monitor industrial network traffic for malformed protocol frames targeting Power Monitor 1000 endpoints
• Alert on unauthenticated network sessions originating from IT segments toward operational technology (OT) assets
• Correlate device availability events with upstream network captures to identify pre-crash request patterns

Monitoring Recommendations

• Deploy OT-aware intrusion detection between enterprise and control networks to inspect device-bound traffic
• Capture and retain packet metadata for sessions reaching Power Monitor 1000 devices for forensic review
• Track firmware version and uptime metrics through asset inventory tooling to detect unscheduled restarts

How to Mitigate CVE-2024-12372

Immediate Actions Required

• Apply the firmware update referenced in Rockwell Automation Advisory SD1714
• Inventory all Power Monitor 1000 devices and confirm firmware versions against the vendor's fixed releases
• Restrict network reachability of affected devices to authorized engineering workstations only

Patch Information

Rockwell Automation has published guidance and fixed firmware through security advisory SD1714. Review the advisory for exact remediated versions and upgrade procedures specific to the Power Monitor 1000 model and revision deployed in the environment.

Workarounds

• Segment Power Monitor 1000 devices into a dedicated OT VLAN with strict allow-list firewall rules
• Block external access to device management interfaces at the perimeter and between zones
• Require jump-host access over VPN for any administrative interaction with the device
• Disable unused network services on the device where the firmware permits

# Example firewall allow-list restricting access to the device
# Replace addresses with the engineering workstation and device IPs
iptables -A FORWARD -s 10.10.20.0/24 -d 10.50.1.25 -p tcp --dport 80 -j ACCEPT
iptables -A FORWARD -s 10.10.20.0/24 -d 10.50.1.25 -p tcp --dport 443 -j ACCEPT
iptables -A FORWARD -d 10.50.1.25 -j DROP