Introduction
In today's increasingly interconnected world, industrial control systems are crucial to the functionality of various sectors, especially in critical manufacturing. However, with the rise of cyber threats, the security of such systems must be taken seriously. One significant vulnerability has recently come to light regarding Bosch Rexroth's IndraDrive systems, which poses serious risks that organizations should immediately address.Executive Summary
According to a recent advisory from the Cybersecurity and Infrastructure Security Agency (CISA), Bosch Rexroth's IndraDrive has been identified with a high-severity flaw characterized by Uncontrolled Resource Consumption. This vulnerability has been assigned a CVSS v4 score of 8.7, indicating it can be exploited remotely with low complexity . As explained in the advisory, successful exploitation could result in a denial-of-service (DoS) scenario, rendering the affected devices unresponsive when attacked with arbitrary UDP messages .Key Facts:
- CVSS v4 Score: 8.7
- Exploitability: Remotely exploitable with low complexity
- Vendor: Bosch Rexroth
- Affected Equipment: IndraDrive servo drive systems
- Vulnerability Type: Uncontrolled Resource Consumption
Risk Evaluation
The implications of this vulnerability are particularly dire. If an attacker successfully sends malicious UDP packets to the IndraDrive system, they could induce a DoS condition, disrupting operations significantly. This scenario not only jeopardizes production continuity but could potentially lead to safety breaches in automated environments.Technical Details
Affected Products
Bosch Rexroth has identified that the following versions of the IndraDrive are affected:- IndraDrive FWA-INDRV-MP: Versions 17VRS < 20V36 .
Vulnerability Overview
The vulnerability in question affects the PROFINET stack implementation within the IndraDrive systems. It falls under the CWE-400 classification, highlighting how a lack of proper resource control can be exploited .Assigned IDs
- CVE Identifier: CVE-2024-48989
- CVSS v3.1 Base Score: 7.5
- CVSS v4 Base Score: 8.7
Background Insights
The IndraDrive equipment plays a vital role in critical manufacturing worldwide, with deployment in numerous sectors. As a German-engineered solution, its global presence emphasizes the importance of maintaining robust cybersecurity measures .The vulnerability disclosure was made by Roni Gavrilov from OTORIO, highlighting the collaborative effort in identifying and addressing such risks .
Mitigations and Recommendations
Bosch Rexroth has released a fix for this vulnerability in version FWA-INDRV-MP-20V36. It is highly recommended that organizations update their systems as soon as possible to mitigate these risks .For scenarios where immediate updates aren't feasible, Bosch Rexroth advises implementing compensatory measures, which might include:
- Network Segmentation: Isolate the affected systems to limit exposure.
- Firewall Configuration: Ensure control systems are behind firewalls and are not directly accessible over the internet.
- Secure Remote Access: Utilize Virtual Private Networks (VPNs) where remote access is necessary, while ensuring they are updated and secure .
Best Practices to Avoid Exploitation
- Minimize network exposure for all control system devices.
- Refrain from clicking links or opening attachments in suspicious emails, a common vector for social engineering attacks .
Conclusion
The vulnerabilities identified in Bosch Rexroth's IndraDrive systems represent a significant risk. Organizations using this equipment should take immediate steps to update their systems and implement the recommended security practices. Cybersecurity is a shared responsibility, and staying informed is the first line of defense in safeguarding critical infrastructure.For more information on this advisory, consult the CISA advisory or the Bosch PSIRT Security Advisory .
For further discussions and insights, feel free to engage on our WindowsForum.com discussions or share your experiences with cybersecurity challenges in industrial control systems. Your input is invaluable in fostering a secure environment for everyone!
Source: CISA Bosch Rexroth IndraDrive
