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AUSCERT External Security Bulletin Redistribution
ESB-2023.2048
ICS Advisory | ICSA-23-096-02 JTEKT ELECTRONICS Screen Creator Advance 2
11 April 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: JTEKT ELECTRONICS Screen Creator Advance 2
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2023-22360 CVE-2023-22353 CVE-2023-22350
CVE-2023-22349 CVE-2023-22347 CVE-2023-22346
CVE-2023-22345
Original Bulletin:
https://www.cisa.gov/news-events/ics-advisories/icsa-23-096-02
Comment: CVSS (Max): 7.8 CVE-2023-22360 (CVSS:3.0/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/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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ICS Advisory (ICSA-23-096-02)
JTEKT ELECTRONICS Screen Creator Advance 2
Release Date
April 06, 2023
1. EXECUTIVE SUMMARY
o CVSS v3 7.8
o ATTENTION: Low attack complexity
o Vendor: JTEKT ELECTRONICS CORPORATION
o Equipment: Screen Creator Advance 2
o Vulnerabilities: Out-of-bounds Read, Out-of-bounds Write, Use After Free
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to
disclose information or execute arbitrary code.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of JTEKT ELECTRONICS Screen Creator Advance 2, a
software program, are affected:
o JTEKT ELECTRONICS Screen Creator Advance 2: Ver0.1.1.4 Build01
3.2 VULNERABILITY OVERVIEW
3.2.1 OUT-OF-BOUNDS WRITE CWE-787
When an out-of-specification error is detected, an out-of-bounds write may
occur because there is no error handling process.
CVE-2023-22345 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.2 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read may occur when processing template information because
the end of data cannot be verified.
CVE-2023-22346 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.3 OUT-OF-BOUNDS READ CWE-125
An Out-of-bounds read may occur when processing file structure information
because the end of data cannot be verified.
CVE-2023-22347 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.4 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read may occur when processing screen management information
because the end of data cannot be verified.
CVE-2023-22349 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.5 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read may occur when processing parts management information
because the end of data cannot be verified.
CVE-2023-22350 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.6 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read may occur when processing control management information
because the end of data cannot be verified.
CVE-2023-22353 has been assigned to this vulnerability. A CVSS v3 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 ).
3.2.7 USE AFTER FREE CWE-416
When an error is detected, an out-of-bounds write may occur because there is no
error handling process.
CVE-2023-22360 has been assigned to this vulnerability. A CVSS v3 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 ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Japan
3.4 RESEARCHER
Michael Heinzl reported these vulnerabilities to JPCERT/CC.
4. MITIGATIONS
JTEKT ELECTRONICS recommends users to download the following updates:
o Ver.0.1.1.4 Build01A and above
For more information, see JTEKT ELECTRONICS' Update Notice .
CISA recommends users take the following measures to protect themselves from
social engineering attacks:
o Do not click web links or open attachments in unsolicited email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
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 at 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 .
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 exploits specifically target these vulnerabilities. These
vulnerabilities are not exploitable remotely.
Related Advisories
Apr 06, 2023
ICS Advisory | ICSA-23-096-05
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Apr 06, 2023
ICS Advisory | ICSA-23-096-01
Industrial Control Links ScadaFlex II SCADA Controllers
Apr 06, 2023
ICS Advisory | ICSA-23-096-04
Korenix Jetwave
Apr 06, 2023
ICS Advisory | ICSA-23-096-06
mySCADA myPRO
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