September 2024

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1. EXECUTIVE SUMMARY

CVSS v3 5.9
ATTENTION: Exploitable remotely
Vendor: IDEC Corporation
Equipment: WindLDR, WindO/I-NV4
Vulnerability: Cleartext Storage of Sensitive Information

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to obtain sensitive information.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of WindLDR and WindO/I-NV4 are affected:

WindLDR: Ver.9.1.0 and prior
WindO/I-NV4: Ver.3.0.1 and prior

3.2 Vulnerability Overview

3.2.1 CLEARTEXT STORAGE OF SENSITIVE INFORMATION CWE-312

The affected products are vulnerable to a cleartext vulnerability that could allow an attacker to obtain user authentication information.

CVE-2024-41716 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.9 has been calculated; the CVSS vector string is (/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Food and Agriculture, Critical Manufacturing, Energy, Transportation
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Japan

3.4 RESEARCHER

Yuki Meguro of Toinx Co., Ltd. reported this vulnerability to IPA.

4. MITIGATIONS

Apply the appropriate software update according to the information provided by the developer:

WindLDR: Ver.9.2.0
WindO/I-NV4: Ver.3.1.0

For more information, reference the IDEC Corporation advisory:

WindLDR and WindO/I-NV4 store sensitive information in cleartext

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.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability has a high attack complexity.

5. UPDATE HISTORY

September 19, 2024: Initial Publication

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