CVE-2024-1309: Honeywell Niagara Framework DOS Vulnerability

CVE-2024-1309 Overview

CVE-2024-1309 is an Uncontrolled Resource Consumption vulnerability affecting Honeywell Niagara Framework across multiple operating systems including Windows, Linux, and QNX. This vulnerability enables attackers to perform Content Spoofing attacks, potentially leading to denial of service conditions. The Niagara Framework is a widely deployed building automation and IoT integration platform used in critical infrastructure environments.

Critical Impact

This vulnerability allows remote attackers to exhaust system resources without authentication, potentially disrupting critical building automation and industrial control systems that rely on Honeywell Niagara Framework.

Affected Products

• Honeywell Niagara Framework on Windows (versions before Niagara 4.1)
• Honeywell Niagara Framework on Linux (versions before Niagara 4.1)
• Honeywell Niagara Framework on QNX (versions before Niagara AX 3.8.1)

Discovery Timeline

• February 13, 2024 - CVE-2024-1309 published to NVD
• November 22, 2024 - Last updated in NVD database

Technical Details for CVE-2024-1309

Vulnerability Analysis

This vulnerability is classified under CWE-400 (Uncontrolled Resource Consumption), which occurs when an application fails to properly limit the allocation and management of resources. In the context of Honeywell Niagara Framework, this weakness can be exploited to consume excessive system resources, leading to degraded performance or complete service unavailability.

The vulnerability is network-accessible and requires no authentication or user interaction to exploit. An attacker can remotely trigger resource exhaustion conditions that impact the availability of the affected system. While confidentiality and integrity are not directly compromised, the availability impact is significant for environments relying on Niagara Framework for building automation and industrial control operations.

Root Cause

The root cause lies in insufficient resource management within the Niagara Framework's network-facing components. The framework fails to implement adequate controls to limit resource consumption when processing certain network requests, allowing malicious actors to trigger excessive resource allocation. This design flaw enables Content Spoofing attacks where attackers can manipulate the system's resource state.

Attack Vector

The attack vector is network-based, allowing remote exploitation without requiring prior authentication or privileges. An attacker can send specially crafted requests to a vulnerable Niagara Framework instance to trigger uncontrolled resource consumption. The low attack complexity means that exploitation does not require specialized conditions or prior access to the target system.

The vulnerability enables Content Spoofing, where an attacker can manipulate the application's behavior by exhausting resources and potentially causing the system to display or process incorrect information. In building automation and industrial control environments, this could disrupt normal operations and monitoring capabilities.

Detection Methods for CVE-2024-1309

Indicators of Compromise

• Unusual spikes in CPU, memory, or network resource utilization on Niagara Framework servers
• Unexpected service degradation or unresponsive Niagara Framework web interfaces
• Anomalous network traffic patterns targeting Niagara Framework ports
• Repeated connection attempts from unknown or suspicious IP addresses

Detection Strategies

• Implement network monitoring to detect abnormal traffic volumes directed at Niagara Framework instances
• Configure resource utilization alerts for systems running Niagara Framework to identify potential exploitation attempts
• Deploy intrusion detection systems (IDS) with rules targeting resource exhaustion attack patterns
• Monitor application logs for signs of excessive request processing or error conditions related to resource limits

Monitoring Recommendations

• Establish baseline resource consumption metrics for Niagara Framework deployments
• Implement real-time alerting for deviations from normal resource utilization patterns
• Monitor network traffic to and from Niagara Framework instances for anomalous behavior
• Review system and application logs regularly for indicators of exploitation attempts

How to Mitigate CVE-2024-1309

Immediate Actions Required

• Update Honeywell Niagara Framework to version 4.1 or later immediately
• For Niagara AX deployments, upgrade to version 3.8.1 or later
• Implement network segmentation to isolate Niagara Framework instances from untrusted networks
• Apply rate limiting on network devices to prevent resource exhaustion attacks

Patch Information

Honeywell has addressed this vulnerability in Niagara Framework version 4.1 and Niagara AX version 3.8.1. Organizations should consult the Honeywell Product Security Information page and the CERT Vulnerability Note #417980 for detailed patching guidance. Additional resources are available through Honeywell Process Services.

Workarounds

• Restrict network access to Niagara Framework instances using firewall rules to allow only trusted IP addresses
• Implement rate limiting at the network perimeter to mitigate resource exhaustion attempts
• Deploy a web application firewall (WAF) or reverse proxy with request throttling capabilities
• Enable monitoring and alerting for resource consumption anomalies as a compensating control until patches can be applied