CVE-2024-43384: Information Disclosure Vulnerability

CVE-2024-43384 Overview

CVE-2024-43384 describes an information disclosure vulnerability where a low privileged remote attacker can obtain the root password. The flaw stems from improper removal of sensitive information before storage or transfer, classified under [CWE-212]. An authenticated attacker with limited privileges can extract credentials that should have been sanitized from data outputs. Successful exploitation grants the attacker root-level access, compromising confidentiality, integrity, and availability of the affected system. The vulnerability was disclosed through CERT VDE Advisory VDE-2024-039.

Critical Impact

A low-privileged authenticated attacker can recover the root password remotely, leading to full system compromise.

Affected Products

• Specific affected products are listed in the CERT VDE advisory
• See the CERT VDE Advisory VDE-2024-039 for vendor and version details
• Refer to vendor documentation for impacted firmware and configuration baselines

Discovery Timeline

• 2026-05-07 - CVE-2024-43384 published to NVD
• 2026-05-07 - Last updated in NVD database

Technical Details for CVE-2024-43384

Vulnerability Analysis

The vulnerability allows a low-privileged authenticated user to retrieve the root account password from the affected device. The product fails to remove sensitive credential data before that data is stored or transferred to a location accessible to lower-privileged users. As a result, an attacker authenticated with limited rights can read the root password directly from an exposed artifact such as a configuration export, diagnostic dump, log, or backup. Once the root password is recovered, the attacker can authenticate as root and execute arbitrary commands. The combination of network reachability, low privilege requirement, and high impact across confidentiality, integrity, and availability makes this a serious risk for any deployment exposing the affected interfaces to untrusted users. User interaction is required to complete exploitation, which suggests the attacker must induce an administrator action or trigger a workflow that produces the leaking artifact.

Root Cause

The root cause is improper sanitization, mapped to [CWE-212] (Improper Removal of Sensitive Information Before Storage or Transfer). The product writes or transfers data containing the root password without first stripping or masking that credential. This exposes the secret to any principal with access to the destination resource.

Attack Vector

The attack vector is network based. An authenticated low-privileged user requests or accesses an artifact (for example a backup file, configuration export, or diagnostic bundle) that contains unredacted root credentials. The attacker parses that artifact, recovers the root password in cleartext or recoverable form, and reuses it to authenticate as root.

No verified public exploit code is available. See the CERT VDE Advisory VDE-2024-039 for vendor-specific technical details.

Detection Methods for CVE-2024-43384

Indicators of Compromise

• Unexpected downloads or exports of configuration files, backups, or diagnostic bundles by low-privileged accounts.
• Successful root logins originating from sources or sessions previously associated with non-administrative users.
• Authentication events for the root account immediately following access to backup or diagnostic interfaces.

Detection Strategies

• Audit access to configuration export, backup, and diagnostic endpoints and correlate with the privilege level of the requesting account.
• Inspect generated backup and diagnostic artifacts for cleartext credential strings before they leave the device.
• Alert on privilege transitions where a low-privileged session is followed by root authentication from the same client.

Monitoring Recommendations

• Centralize device authentication logs and flag root logins that do not originate from approved administrative workstations.
• Monitor file transfer and export functions for use by accounts that do not require those capabilities.
• Review and rotate the root password after any export or diagnostic bundle is generated until the patch is applied.

How to Mitigate CVE-2024-43384

Immediate Actions Required

• Apply the firmware or software update referenced in the CERT VDE Advisory VDE-2024-039 as soon as it is available for your product.
• Rotate the root password and any other credentials that may have been written into existing backup or diagnostic artifacts.
• Restrict network access to management interfaces so that only trusted administrative networks can reach them.

Patch Information

Refer to the CERT VDE Advisory VDE-2024-039 for the authoritative list of fixed versions and vendor remediation guidance. Apply vendor-supplied patches in line with your change management process and verify the version after upgrade.

Workarounds

• Remove existing backup, configuration export, and diagnostic files from shared storage and access-controlled paths until devices are patched.
• Limit the assignment of accounts that can request configuration exports or diagnostic bundles to trusted administrators only.
• Place affected devices behind a management VLAN or jump host to prevent low-privileged remote users from reaching the vulnerable interface.

# Example: restrict management interface access at the network layer
# Replace MGMT_NET and DEVICE_IP with your environment values
iptables -A INPUT -p tcp -s MGMT_NET --dport 443 -d DEVICE_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -d DEVICE_IP -j DROP