CISA released seven Industrial Control Systems (ICS) advisories on April 6, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

• ICSA-23-096-01 Industrial Control Links ScadaFlex II SCADA Controllers
• ICSA-23-096-02 JTEKT Screen Creator Advance 2
• ICSA-23-096-03 JTEKT Kostac PLC
• ICSA-23-096-04 Korenix Jetwave
• ICSA-23-096-05 Hitachi Energy MicroSCADA System Data Manager SDM600
• ICSA-23-096-06 mySCADA myPRO
• ICSA-20-051-02 Rockwell Automation FactoryTalk Diagnostics (Update A)
   

CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations.

1. EXECUTIVE SUMMARY

• CVSS v3 9.9 
• ATTENTION: Exploitable remotely/low attack complexity 
• Vendor: Hitachi Energy 
• Equipment: MicroSCADA System Data Manager SDM600 
• Vulnerabilities: Unrestricted Upload of File with Dangerous Type, Improper Authorization, Improper Resource Shutdown or Release, Improper Privilege Management 

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to take remote control of the product. 

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Hitachi Energy’s MicroSCADA SDM600, a data management tool, are affected: 

• SDM600: Versions prior to v1.2 FP3 HF4 (Build Nr. 1.2.23000.291) 
• SDM600: Versions prior to v1.3.0 (Build Nr. 1.3.0.1339) 

3.2 VULNERABILITY OVERVIEW

3.2.1 UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434 

A vulnerability exists in the affected SDM600 versions file permission validation. An attacker could exploit the vulnerability by gaining access to the system and uploading a specially crafted message to the system node, which could result in arbitrary code execution. 

CVE-2022-3682 has been assigned to this vulnerability. A CVSS v3 base score of 9.9 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). 

3.2.2 IMPROPER AUTHORIZATION CWE-285 

A vulnerability exists in the affected SDM600 versions application programmable interface (API) web services authorization validation implementation. An attacker successfully exploiting the vulnerability could read sensitive data directly from an insufficiently protected or restricted data store.

CVE-2022-3683 has been assigned to this vulnerability. A CVSS v3 base score of 7.7 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N). 

3.2.3 IMPROPER RESOURCE SHUTDOWN OR RELEASE CWE-404 

A vulnerability exists in an SDM600 endpoint. An attacker could exploit this vulnerability by running multiple parallel requests, causing the SDM600 web services to become busy, rendering the application unresponsive. 

CVE-2022-3684 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). 

3.2.4 IMPROPER PRIVILEGE MANAGEMENT CWE-269 

A vulnerability exists in the affected SDM600 versions software. The software operates at a privilege level higher than the minimum level required. An attacker successfully exploiting this vulnerability could escalate privileges. 

CVE-2022-3685 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H). 

3.2.5 IMPROPER AUTHORIZATION CWE-285 

A vulnerability exists in the affected SDM600 versions API permission check mechanism. Successful exploitation could cause an unauthenticated user to gain access to device data, causing confidentiality and integrity issues. 

CVE-2022-3686 has been assigned to this vulnerability. A CVSS v3 base score of 4.8 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L). 

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Energy 
• COUNTRIES/AREAS DEPLOYED: Worldwide 
• COMPANY HEADQUARTERS LOCATION: Switzerland 

3.4 RESEARCHER

Hitachi Energy reported these vulnerabilities to CISA. 

4. MITIGATIONS

Hitachi Energy recommends applying the following mitigations: 

• All SDM600 versions prior to v1.2 FP3 HF4 (Build Nr. 1.2.23000.291): Update to v1.3.0.1339 
• SDM600 versions prior to v1.3.0 (Build Nr. 1.3.0.1339): Apply workaround detailed below. 

Hitachi Energy recommends the following security practices and firewall configurations to help protect a process control network from attacks originating from outside the network:  

• Practice principles of least privileges to minimize permissions and accesses to SDM600 related resources. 
• Follow security practices defined in SDM600 security deployment guidelines. 
• Physically protect process control systems from unauthorized direct access.  
• Do not directly connect control systems networks to the internet.  
• Separate process control systems from other networks using a firewall system with a minimal number of open ports.  
• Process control systems should not be used for internet surfing, instant messaging, or receiving emails.  
• Portable computers and removable storage media should be carefully scanned for viruses prior connection to a control system.  

For more information, see Hitachi security advisory 8DBD000138. 

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 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. 

1. EXECUTIVE SUMMARY

• CVSS v3 7.8 
• ATTENTION: Low attack complexity  
• Vendor: JTEKT ELECTRONICS CORPORATION 
• Equipment: Screen Creator Advance 2 
• 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: 

• 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

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing  
• COUNTRIES/AREAS DEPLOYED: Worldwide 
• 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: 

• 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: 

• 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. 

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. 

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