PatchSiren cyber security CVE debrief

CVE-2024-41716 IDEC Corporation CVE debrief

IDEC Corporation WindLDR and WindO/I-NV4 contain a cleartext storage vulnerability that could allow an attacker to obtain user authentication information. The vulnerability affects WindLDR versions 9.1.0 and earlier, and WindO/I-NV4 versions 3.0.1 and earlier. CISA published advisory ICSA-24-263-03 on September 19, 2024, identifying this as a cleartext vulnerability with network attack vector, high attack complexity, and high confidentiality impact. The vendor has released patched versions: WindLDR Ver.9.2.0 and WindO/I-NV4 Ver.3.1.0. Organizations using these industrial control system programming tools should apply the vendor updates and follow CISA's recommended practices for securing ICS environments.

Vendor: IDEC Corporation
Product: WindLDR
CVSS: MEDIUM 5.9
CISA KEV: Not listed in stored evidence
Original CVE published: 2024-09-19
Original CVE updated: 2024-09-19
Advisory published: 2024-09-19
Advisory updated: 2024-09-19

Who should care

Organizations using IDEC WindLDR or WindO/I-NV4 for PLC and HMI programming in industrial automation environments. This includes manufacturing facilities, utilities, and other industrial sectors relying on IDEC control systems. Security teams responsible for OT/ICS asset management and engineering workstation protection should prioritize patching.

Technical summary

The vulnerability involves cleartext storage of sensitive user authentication information in IDEC Corporation's WindLDR PLC programming software and WindO/I-NV4 HMI programming software. An attacker with network access could potentially obtain authentication credentials due to this insecure storage practice. The attack requires high complexity but can be executed without privileges or user interaction. The confidentiality impact is rated high, though integrity and availability are not affected. This vulnerability is particularly relevant in operational technology environments where engineering workstations may have privileged access to industrial control systems.

Defensive priority

medium

Recommended defensive actions

Apply vendor software updates: upgrade WindLDR to Ver.9.2.0 and WindO/I-NV4 to Ver.3.1.0
Review IDEC Corporation security advisory for additional mitigation guidance
Implement network segmentation for industrial control systems per CISA ICS recommended practices
Apply defense-in-depth strategies for ICS environments
Monitor for unauthorized access attempts to engineering workstations running affected software

Evidence notes

CISA CSAF advisory ICSA-24-263-03 published 2024-09-19 identifies cleartext storage of sensitive authentication information in IDEC WindLDR ≤9.1.0 and WindO/I-NV4 ≤3.0.1. CVSS 3.1 vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N yields score 5.9 (MEDIUM). Vendor fixes released: WindLDR Ver.9.2.0 and WindO/I-NV4 Ver.3.1.0.

Official resources

2024-09-19