CVE-2024-25832: F-logic DataCube3 File Upload Vulnerability

CVE-2024-25832 Overview

CVE-2024-25832 is an unrestricted file upload vulnerability in F-logic DataCube3 v1.0. Authenticated attackers can upload files of dangerous types by manipulating the filename extension. The flaw is categorized under [CWE-434] (Unrestricted Upload of File with Dangerous Type) and is exploitable over the network with low attack complexity.

Successful exploitation lets an attacker place executable content on the device and run it in the application context. This can lead to remote code execution, persistence, and full compromise of the DataCube3 appliance.

Critical Impact
An authenticated attacker can upload attacker-controlled files with dangerous extensions, achieving code execution on the DataCube3 appliance and undermining confidentiality, integrity, and availability.

Affected Products

F-logic DataCube3 v1.0 (firmware)
F-logic DataCube3 hardware appliance
Deployments exposing the DataCube3 web management interface

Discovery Timeline

2024-02-29 - CVE-2024-25832 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-25832

Vulnerability Analysis

The vulnerability resides in the file upload handler of the DataCube3 web application. The handler validates uploaded content based on the filename extension rather than performing server-side content inspection or an allow-list of safe types. An authenticated user can bypass any client-side checks by renaming a malicious payload to an accepted extension or by supplying a compound or manipulated extension.

Once uploaded, the file is stored in a location reachable from the web root or invokable by the application. Attackers can then request the file to trigger execution in the server context. Because the operation requires only low privileges and no user interaction, any account with upload rights, including default or weakly protected accounts, becomes a viable entry point.

The consequence is arbitrary code execution on the appliance. Attackers can pivot to internal networks, exfiltrate stored data, tamper with device configuration, or disrupt service. Details are documented in the NeroTeam Vulnerability Report.

Root Cause

The root cause is improper validation of uploaded file types [CWE-434]. The application trusts the client-supplied filename extension and does not enforce a strict allow-list, MIME sniffing, or magic-byte verification. This allows dangerous file types such as server-side scripts to bypass upload restrictions.

Attack Vector

The attack vector is network-based through the DataCube3 web interface. An authenticated attacker submits a crafted multipart upload request containing a script payload with a manipulated extension. After the file is written to disk, the attacker issues a follow-up HTTP request to invoke the payload and execute code on the device.

// No verified public exploit code is included.
// See the NeroTeam Vulnerability Report for technical details:
// https://neroteam.com/blog/f-logic-datacube3-vulnerability-report

Detection Methods for CVE-2024-25832

Indicators of Compromise

Unexpected files with executable or script extensions (for example .php, .cgi, .pl, .sh) in DataCube3 upload directories
Web access logs showing POST requests to the upload endpoint followed by GET requests to newly created files
Authenticated sessions originating from atypical source IP addresses or user agents
Outbound connections from the DataCube3 appliance to unknown external hosts after an upload event

Detection Strategies

Monitor upload directories for files whose declared extension does not match their magic bytes
Alert on any file write to web-accessible paths on the appliance that is followed by an HTTP request executing that file
Correlate authentication events with upload activity to identify credential abuse
Inspect HTTP requests for double extensions, null bytes, or suffix-manipulation patterns in filename fields

Monitoring Recommendations

Forward DataCube3 web server and authentication logs to a centralized SIEM for retention and correlation
Baseline normal upload volumes and file types, then alert on deviations
Track privileged and service account logins to the DataCube3 interface for anomalous activity
Monitor egress traffic from the appliance segment for command-and-control indicators

How to Mitigate CVE-2024-25832

Immediate Actions Required

Restrict network access to the DataCube3 management interface to trusted administrative networks only
Rotate all DataCube3 credentials and disable default or shared accounts
Audit the upload directories for unauthorized files and remove any suspicious artifacts
Contact F-logic support to confirm patch availability and firmware update procedures

Patch Information

No vendor advisory URL is listed in the NVD record at the time of publication. Administrators should contact F-logic directly to obtain remediation guidance and any available firmware update for DataCube3 v1.0. Reference the NeroTeam Vulnerability Report for technical context when engaging the vendor.

Workarounds

Place the DataCube3 appliance behind a web application firewall that blocks uploads with dangerous or double extensions
Enforce network segmentation so the appliance cannot initiate outbound connections to arbitrary destinations
Disable or tightly restrict accounts with upload permissions until a patch is applied
Require multi-factor authentication or VPN access before reaching the management interface

bash

# Example: restrict access to the DataCube3 management interface at the network edge
# Allow only the admin subnet to reach the appliance web port
iptables -A FORWARD -s 10.10.50.0/24 -d 10.20.0.10 -p tcp --dport 443 -j ACCEPT
iptables -A FORWARD -d 10.20.0.10 -p tcp --dport 443 -j DROP