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AUSCERT External Security Bulletin Redistribution
ESB-2024.1787
ICS Advisory | ICSA-24-086-03 Rockwell Automation Arena Simulation
27 March 2024
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AusCERT Security Bulletin Summary
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Product: Rockwell Automation Arena Simulation Software
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2024-2929 CVE-2024-21918 CVE-2024-21919
CVE-2024-21920 CVE-2024-21912 CVE-2024-21913
Original Bulletin:
https://www.cisa.gov/news-events/ics-advisories/icsa-24-086-03
Comment: CVSS (Max): 7.8 CVE-2024-2929 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: ICS-CERT
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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ICS Advisory (ICSA-24-086-03)
Rockwell Automation Arena Simulation
Release Date
March 26, 2024
1. EXECUTIVE SUMMARY
o CVSS v3 7.8
o ATTENTION : low attack complexity
o Vendor : Rockwell Automation
o Equipment : Arena Simulation Software
o Vulnerabilities : Out-of-bounds Write, Heap-based Buffer Overflow, Improper
Restriction of Operations within the Bounds of a Memory Buffer, Use After
Free, Access of Uninitialized Pointer, Out-of-bounds Read
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could crash the application or
allow an attacker to run harmful code on the system.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Rockwell Automation reports that the following versions of Arena Simulation
Software are affected:
o Arena Simulation Software: version 16.00
3.2 Vulnerability Overview
3.2.1 Out-of-bounds Write CWE-787
An arbitrary code execution vulnerability could let a malicious user insert
unauthorized code into the software. This is done by writing beyond the
designated memory area, which causes an access violation. Once inside, the
threat actor can run harmful code on the system. This affects the
confidentiality, integrity, and availability of the product. To trigger this,
the user would unwittingly need to open a malicious file shared by the threat
actor.
CVE-2024-21912 has been assigned to this vulnerability. A CVSS v3.1 base score
of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:H/I:H/A:H ).
A CVSS v4 score has been calculated for CVE-2024-21912 . A base score of 8.4
has been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/
UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N ).
3.2.2 HEAP-BASED BUFFER OVERFLOW CWE-122
A heap-based memory buffer overflow vulnerability could potentially allow a
malicious user to insert unauthorized code into the software by overstepping
the memory boundaries, which trigger an access violation. Once inside, the
threat actor can run harmful code on the system. This affects the
confidentiality, integrity, and availability of the product. To trigger this,
the user would unwittingly need to open a malicious file shared by the threat
actor.
CVE-2024-21913 has been assigned to this vulnerability. A CVSS v3.1 base score
of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:H/I:H/A:H ).
A CVSS v4 score has been calculated for CVE-2024-21913 . A base score of 8.4
has been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/
UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N ).
3.2.3 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119
A memory corruption vulnerability could potentially allow a malicious user to
insert unauthorized code to the software by corrupting the memory triggering an
access violation. Once inside, the threat actor can run harmful code on the
system. This affects the confidentiality, integrity, and availability of the
product. To trigger this, the user would unwittingly need to open a malicious
file shared by the threat actor.
CVE-2024-2929 has been assigned to this vulnerability. A CVSS v3.1 base score
of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:H/I:H/A:H ).
A CVSS v4 score has been calculated for CVE-2024-2929 . A base score of 8.4 has
been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/
VC:H/VI:H/VA:H/SC:N/SI:N/SA:N ).
3.2.4 Use After Free CWE-416
A memory buffer vulnerability could potentially allow a malicious user to
insert unauthorized code to the software by corrupting the memory and
triggering an access violation. Once inside, the threat actor can run harmful
code on the system. This affects the confidentiality, integrity, and
availability of the product. To trigger this, the user would unwittingly need
to open a malicious file shared by the threat actor.
CVE-2024-21918 has been assigned to this vulnerability. A CVSS v3.1 base score
of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:H/I:H/A:H ).
A CVSS v4 score has been calculated for CVE-2024-21918 . A base score of 8.4
has been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/
UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N ).
3.2.5 Access of Uninitialized Pointer CWE-824
An uninitialized pointer could potentially allow a malicious user to insert
unauthorized code to the software by leveraging the pointer after it is
properly. Once inside, the threat actor can run harmful code on the system.
This affects the confidentiality, integrity, and availability of the product.
To trigger this, the user would unwittingly need to open a malicious file
shared by the threat actor.
CVE-2024-21919 has been assigned to this vulnerability. A CVSS v3.1 base score
of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:H/I:H/A:H ).
A CVSS v4 score has been calculated for CVE-2024-21919 . A base score of 8.4
has been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/
UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N ).
3.2.6 Out-of-bounds Read CWE-125
A memory buffer vulnerability might let a threat actor read beyond the intended
memory boundaries. This could reveal sensitive information and even cause the
application to crash, resulting in a denial-of-service condition. To trigger
this, the user would unwittingly need to open a malicious file shared by the
threat actor.
CVE-2024-21920 has been assigned to this vulnerability. A CVSS v3.1 base score
of 4.4 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U
/C:L/I:N/A:L ).
A CVSS v4 score has been calculated for CVE-2024-21920 . A base score of 4.6
has been calculated; the CVSS vector string is ( CVSS:4.0/AV:L/AC:L/AT:N/PR:N/
UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Food and Agriculture, Healthcare and
Public Health, Critical Manufacturing, Transportation Systems
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Michael Heinzl reported these vulnerabilities to Rockwell Automation.
4. MITIGATIONS
Rockwell Automation recommends upgrading the affected product software to
16.20.03.
Rockwell Automation encourages users of the affected software to apply the risk
mitigations, if possible:
o Do not open untrusted files from unknown sources.
o For information on how to mitigate security risks on industrial automation
control systems, we encourage customers to implement our suggested security
best practices to minimize the risk of the vulnerability.
Customers can use Stakeholder-Specific Vulnerability Categorization to
generate more environment-specific prioritization.
For additional information, refer to Rockwell Automation's security advisory.
CISA recommends users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. 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.
No known public exploitation specifically targeting these vulnerabilities has
been reported to CISA at this time. These vulnerabilities are not exploitable
remotely.
5. UPDATE HISTORY
o March 26, 2024: Initial Publication
This product is provided subject to this Notification and this Privacy & Use
policy.
Vendor
Rockwell Automation
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