A vulnerability exists in Rockwell Automation affected products that allows a threat actor to bypass the Trusted® Slot feature in a ControlLogix® controller. If exploited on any affected module in a 1756 chassis, a threat actor could potentially execute CIP commands that modify user projects and/or device configuration on a Logix controller in the chassis.
This vulnerability has a CVSS score of 7.3, indicating a high severity level. The nature of this vulnerability is concerning as it affects critical control systems, potentially allowing unauthorized access and modification of sensitive configurations. Organizations utilizing Rockwell Automation products should be aware of the possible implications of this vulnerability.
Given the high exploitation potential and the critical nature of the systems affected, organizations should prioritize patching immediately.
As of now, this vulnerability is awaiting analysis, and specific exploitation details are not publicly available. However, the urgency for defenders remains high due to the potential risk involved.
Vulnerability Details
The vulnerability allows for a bypass of the Trusted® Slot feature in Rockwell Automation’s ControlLogix® controller, identified as CWE-420. The attack vector is network-based, with low attack complexity, requiring low privileges and no user interaction. The confidentiality impact is low, while the integrity and availability impacts are high.
The CVSS vector string for this vulnerability is: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X.
Technical Analysis
The root cause of this vulnerability stems from inadequate protection mechanisms in the Trusted® Slot feature. This allows an attacker with network access to the ControlLogix® controller to execute unauthorized CIP commands. As the attack complexity is low, even a minimally skilled attacker could potentially exploit this vulnerability.
The attack vector is primarily network-based, where an attacker can initiate the exploit remotely. The requirements for privilege are low, allowing attackers to gain access with minimal barriers. Importantly, no user interaction is needed for the exploitation, heightening the risk.
In terms of impact, the vulnerability compromises integrity and availability, allowing attackers to alter configurations and potentially disrupt operations. The confidentiality impact is low, meaning that sensitive information is not directly exposed through this vulnerability.
Risk & Impact Analysis
Risk to organizations includes unauthorized modifications to critical control systems, which can lead to operational disruptions and potential safety hazards. The ability to execute CIP commands poses a significant threat to device integrity and user project configurations, which can have cascading effects on manufacturing and operational processes.
With the high CVSS score and the nature of the vulnerabilities involved, organizations are urged to act swiftly. Organizations should address in priority patch cycle to mitigate these risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected by this vulnerability. Specific product details are currently unavailable.
Mitigation & Remediation
Organizations should prioritize applying patches and updates provided by Rockwell Automation as soon as they become available. If a patch is not yet available, implementing network controls to limit access to critical systems can mitigate risks. Additionally, organizations should consider configuration hardening and ongoing monitoring to detect any unauthorized changes.
For comprehensive assessments, organizations may benefit from engaging in penetration testing to identify vulnerabilities within their operational technology environments.
Detection Guidance
To monitor for potential exploitation of this vulnerability, organizations should implement logging and monitoring solutions that can detect abnormal behavior in ControlLogix® controllers and associated networks. Key indicators to watch for include unauthorized CIP command executions and changes in project configurations.
AppSecure Threat Intelligence Insight
This vulnerability underscores the importance of maintaining robust security practices in industrial control systems. The ability to bypass critical security features highlights potential weaknesses in the design of such systems. Organizations should regularly review and update their security protocols to address emerging threats.
For further insights on strengthening security measures, organizations can explore the following resources: penetration testing methodology, vulnerability management programs, and cloud security assessments to enhance their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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