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Breadcrumb
 1. Home
 2. News & Events
 3. Cybersecurity Advisories
 4. ICS Advisory

Share:


ICS Advisory


BOSCH REXROTH INDRADRIVE

Release Date
November 07, 2024
Alert Code
ICSA-24-312-03
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems


View CSAF(link is external)


1. EXECUTIVE SUMMARY

 * CVSS v4 8.7
 * ATTENTION: Exploitable remotely/low attack complexity
 * Vendor: Bosch Rexroth
 * Equipment: IndraDrive
 * Vulnerability: Uncontrolled Resource Consumption


2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to cause a
denial-of-service, rendering the device unresponsive by sending arbitrary UDP
messages.


3. TECHNICAL DETAILS


3.1 AFFECTED PRODUCTS

Bosch Rexroth reports that the following versions of IndraDrive, servo drive
system, are affected:

 * Bosch Rexroth AG IndraDrive FWA-INDRV*-MP*: 17VRS < 20V36


3.2 VULNERABILITY OVERVIEW

3.2.1 UNCONTROLLED RESOURCE CONSUMPTION CWE-400(LINK IS EXTERNAL)

A vulnerability in the PROFINET stack implementation of the IndraDrive of Bosch
Rexroth allows an attacker to cause a denial-of-service, rendering the device
unresponsive by sending arbitrary UDP messages.

CVE-2024-48989(link is external) has been assigned to this vulnerability. A CVSS
v3.1 base score of 7.5 has been calculated; the CVSS vector string is
(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H(link is external)).

A CVSS v4 score has also been calculated for CVE-2024-48989(link is external). A
base score of 8.7 has been calculated; the CVSS vector string is
(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N(link is
external)).


3.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
 * COUNTRIES/AREAS DEPLOYED: Worldwide
 * COMPANY HEADQUARTERS LOCATION: Germany


3.4 RESEARCHER

Roni Gavrilov from OTORIO reported this vulnerability to CISA.


4. MITIGATIONS

Bosch Rexroth has fixed this vulnerability starting with FWA-INDRV-MP-20V36.
Bosch Rexroth recommends updating as soon as possible.

In use cases in which a device update is not possible or not feasible, Bosch
Rexroth recommends compensatory measures which prevent or at least complicate
taking advantage of the vulnerability. Always define such compensatory measures
individually, in the context of the operational environment.

Some possible measures are described in "Security Manual Electric Drives and
Controls",(link is external) like network segmentation. In general, it is highly
recommended to implement the measures described in "Security Manual Drives and
Controls".

For more information, refer to the Bosch PSIRT Security Advisory
BOSCH-SA-2584444(link is external)

Please contact the Bosch PSIRT if you have feedback, comments, or additional
information about this vulnerability at: psirt@bosch.com .(link sends email)

CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability, such as:

 * Minimize network exposure for all control system devices and/or systems,
   ensuring they are not accessible from the internet.
 * Locate control system networks and remote devices behind firewalls and
   isolating them from business networks.
 * When remote access is required, use more secure methods, such as virtual
   private networks (VPNs), recognizing VPNs may have vulnerabilities and should
   be updated to the most current version available. Also recognize VPN is only
   as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment
prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber
defense best practices are available for reading and download, including
Improving Industrial Control Systems Cybersecurity with Defense-in-Depth
Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies
for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available
on the ICS webpage at cisa.gov/ics in the technical information paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.

Organizations observing suspected malicious activity should follow established
internal procedures and report findings to CISA for tracking and correlation
against other incidents.

CISA also recommends users take the following measures to protect themselves
from social engineering attacks:

 * Do not click web links or open attachments in unsolicited email messages.
 * Refer to Recognizing and Avoiding Email Scams for more information on
   avoiding email scams.
 * Refer to Avoiding Social Engineering and Phishing Attacks for more
   information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been
reported to CISA at this time.


5. UPDATE HISTORY

 * November 7, 2024: Initial Publication

This product is provided subject to this Notification and this Privacy &
Use policy.


VENDOR

 * Rexroth Bosch


TAGS

Sector: Critical Manufacturing Sector
Topics: Industrial Control System Vulnerabilities, Industrial Control Systems


PLEASE SHARE YOUR THOUGHTS

We recently updated our anonymous product survey; we’d welcome your feedback.


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