ICS Advisory (ICSA-21-005-02)

Panasonic FPWIN Pro

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1. EXECUTIVE SUMMARY

  • CVSS v3 7.3
  • ATTENTION: Low skill level to exploit
  • Vendor: Panasonic
  • Equipment: FPWIN Pro
  • Vulnerability: Out-of-bounds Read

2. RISK EVALUATION

Successful exploitation of this vulnerability could result in an out-of-bounds read, which may allow remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of FPWIN Pro, a programming software for all FP Series PLCs, are affected:

  • FPWIN Pro Version 7.5.0.0 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1    OUT-OF-BOUNDS READ CWE-125

The affected product is vulnerable to an out-of-bounds read vulnerability when a user opens a maliciously crafted project file, which may allow an attacker to remotely execute arbitrary code. 

CVE-2020-16236 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Food and Agriculture
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Japan

3.4 RESEARCHER

Francis Provencher {PRL} working with Trend Micro’s Zero Day Initiative reported this vulnerability to CISA.

4. MITIGATIONS

Panasonic has released FPWIN Pro 7.5.0.1 software to address the vulnerability described in this advisory. The latest version of the software can be downloaded from the Panasonic website.

For more information about these issues or other vulnerabilities in Panasonic products, please contact the Panasonic Product Security Incident Response Team.

CISA recommends users take the following measures to protect themselves from 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 on us-cert.cisa.gov. Several recommended 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 on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

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

No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely. 


Contact Information

For any questions related to this report, please contact the CISA at:

Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  https://us-cert.cisa.gov/ics 
or incident reporting:  https://us-cert.cisa.gov/report

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