CVE-2025-11943: 70mai X200 Firmware Auth Bypass Flaw

CVE-2025-11943 Overview

A security vulnerability has been identified in the 70mai X200 dashcam firmware up to version 20251010. This vulnerability affects the HTTP Web Server component and allows attackers to exploit default credentials to gain unauthorized access. The attack can be initiated remotely over the network without requiring any user interaction or prior authentication. The exploit details have been publicly disclosed, and despite early notification, the vendor did not respond to the disclosure.

Critical Impact

Remote attackers can exploit default credentials on the 70mai X200 HTTP Web Server to gain unauthorized access to the dashcam, potentially compromising device integrity, accessing stored footage, and modifying device configurations.

Affected Products

• 70mai X200 Firmware (versions up to 20251010)
• 70mai X200 Hardware Device

Discovery Timeline

• 2025-10-19 - CVE-2025-11943 published to NVD
• 2025-11-17 - Last updated in NVD database

Technical Details for CVE-2025-11943

Vulnerability Analysis

This vulnerability falls under CWE-1392 (Use of Default Credentials), a configuration flaw in the 70mai X200 dashcam's HTTP Web Server. The device ships with hardcoded default credentials that are not required to be changed during initial setup, leaving the device vulnerable to unauthorized access. Since the HTTP Web Server is network-accessible, any attacker within range of the device's network can attempt authentication using well-known default credentials.

The exploitation path is straightforward: an attacker identifies a 70mai X200 device on the network, connects to its HTTP Web Server interface, and authenticates using default credentials. This grants access to the device's administrative functions, potentially exposing sensitive video recordings, GPS data, and device configuration settings.

Root Cause

The root cause is the use of default credentials in the HTTP Web Server component of the 70mai X200 firmware. The device does not enforce credential changes during setup, nor does it implement account lockout mechanisms to prevent brute-force attempts. According to the GitHub Root Password Finding Guide, the root password is exposed via the unauthenticated HTTP server interface.

Attack Vector

The attack is network-based and requires no authentication or user interaction. An attacker with network access to the dashcam's HTTP Web Server can exploit this vulnerability remotely. The attack complexity is low, making it accessible to attackers with minimal technical skills. The vulnerability allows limited impact to confidentiality, integrity, and availability of the affected system.

The exploitation typically involves:

1. Discovering the 70mai X200 device on the local network
2. Accessing the HTTP Web Server interface
3. Authenticating using known default credentials
4. Gaining administrative access to device functions

For detailed technical information about this vulnerability, refer to the VulDB Vulnerability Detail and the GitHub research documentation.

Detection Methods for CVE-2025-11943

Indicators of Compromise

• Unexpected authentication attempts to the 70mai X200 HTTP Web Server from unknown IP addresses
• Successful login events using default credentials on dashcam devices
• Unauthorized configuration changes to the dashcam settings
• Anomalous network traffic patterns to/from the dashcam device

Detection Strategies

• Monitor network traffic for connections to the 70mai X200 HTTP Web Server from unauthorized sources
• Implement network segmentation to isolate IoT devices like dashcams from critical network segments
• Deploy intrusion detection systems (IDS) to identify default credential exploitation attempts
• Audit device logs for authentication events and configuration modifications

Monitoring Recommendations

• Establish baseline network behavior for 70mai X200 devices and alert on deviations
• Implement continuous monitoring of IoT device authentication logs
• Use network access control (NAC) to restrict which devices can communicate with the dashcam
• Schedule regular security assessments of IoT firmware and configurations

How to Mitigate CVE-2025-11943

Immediate Actions Required

• Change default credentials on all 70mai X200 devices immediately upon deployment
• Restrict network access to the dashcam's HTTP Web Server to trusted IP addresses only
• Disable the HTTP Web Server if remote access functionality is not required
• Isolate the dashcam on a separate network segment with strict firewall rules

Patch Information

The vendor (70mai) was contacted early about this disclosure but did not respond. As of the last update on 2025-11-17, no official patch has been released. Users should monitor the 70mai official channels for firmware updates and apply them immediately when available. Additional vulnerability information is available at VulDB #329022.

Workarounds

• Implement strong, unique credentials on the device if the firmware allows credential modification
• Use network-level access controls (firewall rules, VLANs) to restrict access to the HTTP Web Server
• Disable remote access features if not operationally required
• Consider replacing vulnerable devices with alternatives that follow secure-by-default practices

# Network isolation example using iptables
# Restrict access to dashcam IP (replace with actual device IP)
iptables -A INPUT -s 192.168.1.0/24 -d DASHCAM_IP -p tcp --dport 80 -j DROP
iptables -A INPUT -s TRUSTED_IP -d DASHCAM_IP -p tcp --dport 80 -j ACCEPT