CVE-2024-12757: Nedap Librix Ecoreader Auth Bypass Flaw

CVE-2024-12757 Overview

CVE-2024-12757 affects Nedap Librix Ecoreader and stems from missing authentication for critical functions [CWE-306]. An unauthenticated attacker with network access can invoke privileged functionality without credentials. The vulnerability can lead to execution of malicious code on affected devices.

The issue is exploitable remotely over the network and requires no user interaction or prior privileges. CISA published advisory ICSA-25-007-02 documenting the issue in the industrial control systems ecosystem. Organizations operating Nedap Librix Ecoreader devices should treat exposed management interfaces as high-priority remediation targets.

Critical Impact
Unauthenticated network attackers can reach critical functions on Nedap Librix Ecoreader and potentially execute malicious code without credentials or user interaction.

Affected Products

Nedap Librix Ecoreader
Specific firmware versions are listed in CISA ICS Advisory ICSA-25-007-02
Deployments exposing the Ecoreader management interface to untrusted networks

Discovery Timeline

2025-01-17 - CVE-2024-12757 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2024-12757

Vulnerability Analysis

The vulnerability is classified under [CWE-306] Missing Authentication for Critical Function. The Ecoreader exposes critical functionality over the network without verifying the identity of the caller. An attacker who can reach the device on the network can invoke these functions directly.

Because authentication checks are absent on sensitive endpoints, the exploitation path does not require credential theft, brute force, or session hijacking. The attacker sends crafted requests to the exposed service and triggers the privileged operation. According to the advisory, this can lead to execution of malicious code.

The EPSS probability is 0.375% with a percentile of 59.495 as of 2026-06-09. No public proof-of-concept code or active exploitation has been confirmed at this time.

Root Cause

The root cause is the absence of an authentication or authorization layer in front of sensitive operations exposed by the Ecoreader. Functions that should require administrator credentials accept anonymous requests. This design flaw places trust in network reachability rather than identity verification.

Attack Vector

The attack vector is network-based. An attacker establishes a network path to the Ecoreader, then issues requests directly to the unauthenticated functions. No user interaction is required. Devices deployed on flat networks, exposed to the internet, or reachable through compromised adjacent systems face the highest risk.

No verified exploit code is publicly available. Refer to the CISA ICS Advisory ICSA-25-007-02 for vendor-supplied technical details.

Detection Methods for CVE-2024-12757

Indicators of Compromise

Unexpected configuration changes on Ecoreader devices, including new administrative settings or modified firmware
Outbound connections from the Ecoreader to unfamiliar external hosts
Anonymous HTTP or proprietary protocol requests to Ecoreader management endpoints in network logs

Detection Strategies

Inspect network traffic for requests to Ecoreader management interfaces that lack authentication headers or session tokens
Correlate device logs with network flow data to identify privileged actions originating from unauthenticated sessions
Baseline normal administrative activity and alert on requests originating from non-administrative network segments

Monitoring Recommendations

Forward Ecoreader logs and adjacent network telemetry to a centralized analytics platform for anomaly identification
Monitor for scans targeting ports and protocols used by the Ecoreader from internal and external sources
Track firmware version and configuration state on all Ecoreader devices to identify unauthorized changes

How to Mitigate CVE-2024-12757

Immediate Actions Required

Restrict network reach to Ecoreader devices using firewall rules and VLAN segmentation, allowing only authorized management hosts
Remove any direct internet exposure of Ecoreader management interfaces
Audit existing devices for unauthorized configuration changes and unexpected outbound connections
Apply vendor-supplied updates as referenced in CISA ICS Advisory ICSA-25-007-02

Patch Information

Refer to the CISA ICS Advisory ICSA-25-007-02 for vendor remediation guidance and affected firmware versions. Apply the vendor-recommended firmware update on every Ecoreader device once available in your environment.

Workarounds

Place Ecoreader devices on isolated management networks accessible only through a jump host or VPN
Enforce strict access control lists at upstream switches and firewalls to limit which source addresses can reach the device
Disable any unused network services on the device to reduce the exposed attack surface

bash

# Example: restrict access to Ecoreader management interface to a single admin subnet
iptables -A FORWARD -s 10.10.50.0/24 -d <ecoreader_ip> -j ACCEPT
iptables -A FORWARD -d <ecoreader_ip> -j DROP