CVE-2022-47388 in Control
Summary
by MITRE • 05/15/2023
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
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Analysis
by VulDB Data Team • 05/15/2023
The vulnerability identified as CVE-2022-47388 represents a critical stack-based out-of-bounds write flaw within the CmpTraceMgr component of various CODESYS products. This issue affects multiple versions of the CODESYS software suite, which is widely deployed in industrial automation and control systems. The vulnerability stems from insufficient bounds checking in the component responsible for trace management, creating a scenario where malicious input can cause unintended memory access patterns. The flaw is particularly concerning because it requires only authentication to exploit, making it accessible to attackers who have legitimate access credentials to the system. This authentication requirement does not mitigate the risk significantly, as compromised accounts or insider threats can readily leverage this vulnerability. The affected CODESYS products are commonly used in critical infrastructure environments, including manufacturing systems, process control, and industrial IoT deployments, where the potential impact of exploitation extends beyond simple service disruption.
The technical implementation of this vulnerability involves a stack-based buffer overflow condition that occurs during trace data processing within the CmpTraceMgr component. When legitimate authenticated users submit crafted input to the trace management functionality, the software fails to properly validate the size or boundaries of the data being written to stack memory locations. This insufficient validation allows an attacker to write data beyond the allocated stack buffer boundaries, potentially overwriting adjacent memory locations including return addresses, function pointers, or other critical control data. The out-of-bounds write can be leveraged to manipulate program execution flow, leading to denial-of-service conditions where the application crashes or becomes unresponsive. More critically, in certain exploitation scenarios, this memory corruption can enable remote code execution, allowing attackers to gain unauthorized control over the affected system. The vulnerability manifests as a direct consequence of poor input validation practices and inadequate memory management within the software component, which aligns with CWE-121 stack-based buffer overflow conditions and represents a classic example of unsafe memory operations.
The operational impact of CVE-2022-47388 extends significantly beyond traditional cybersecurity concerns, particularly within industrial control environments where CODESYS products are extensively deployed. Organizations utilizing affected CODESYS versions face potential disruptions to critical manufacturing processes, production line automation, and industrial control systems that could result in financial losses, safety hazards, or regulatory compliance issues. The vulnerability's remote exploitation capability means that attackers do not need physical access to the target systems, making it particularly dangerous for operational technology environments that may have limited network segmentation or monitoring capabilities. The potential for denial-of-service attacks can lead to production halts, while the remote code execution capability poses a severe threat to system integrity and can enable attackers to establish persistent access to industrial networks. The attack surface is further expanded by the widespread adoption of CODESYS products across various industrial sectors, including automotive manufacturing, chemical processing, and energy production, where system availability and security are paramount for operational continuity and safety compliance.
Mitigation strategies for CVE-2022-47388 should prioritize immediate patch deployment from the vendor, as this represents a critical vulnerability requiring urgent attention. Organizations must ensure comprehensive inventory tracking of all affected CODESYS products and versions to understand their exposure levels. Network segmentation and access control measures should be strengthened to limit the potential impact of exploitation, particularly by restricting administrative access to only necessary personnel and systems. Monitoring solutions should be enhanced to detect anomalous trace processing activities that might indicate exploitation attempts, with specific attention to authentication logs and system resource utilization patterns. Security teams should implement principle of least privilege configurations for CODESYS components and establish regular vulnerability assessment processes to identify similar issues in other industrial control system components. The remediation process should include thorough testing of patches in non-production environments before deployment to ensure that updates do not introduce compatibility issues with existing industrial processes. Additionally, incident response procedures should be updated to include specific protocols for handling potential exploitation of this vulnerability, considering the specialized nature of industrial control systems and the potential for cascading failures that could affect broader operational environments. This vulnerability demonstrates the importance of maintaining security awareness in industrial environments where the convergence of IT and OT systems creates unique challenges for vulnerability management and risk mitigation.