CVE-2025-2120 Overview
A cleartext storage vulnerability has been identified in the Thinkware Car Dashcam F800 Pro firmware (versions up to 20250226). This security flaw affects the Configuration File Handler component, specifically the /tmp/hostapd.conf file, where sensitive information is stored without encryption. An attacker with physical access to the device can read configuration data in plaintext, potentially exposing WiFi credentials and other sensitive settings.
Critical Impact
Physical attackers can extract cleartext credentials from the device's configuration files, compromising network security and potentially enabling further attacks against connected systems.
Affected Products
- Thinkware F800 Pro Firmware (versions up to 20250226)
- Thinkware F800 Pro Hardware Device
Discovery Timeline
- 2025-03-09 - CVE-2025-2120 published to NVD
- 2025-07-22 - Last updated in NVD database
Technical Details for CVE-2025-2120
Vulnerability Analysis
This vulnerability falls under CWE-312 (Cleartext Storage of Sensitive Information). The Thinkware F800 Pro dashcam stores configuration data, including WiFi access point credentials, in plaintext within the /tmp/hostapd.conf file. The hostapd.conf file is a standard configuration file used for wireless access point daemon services, typically containing SSID names, passwords, and encryption settings.
When the dashcam creates a WiFi hotspot for mobile app connectivity, it writes the access point configuration to this file without any encryption or obfuscation. This design flaw means that anyone who gains physical access to the device's storage can trivially read the wireless credentials.
Root Cause
The root cause of this vulnerability is the improper storage of sensitive information. The firmware developers did not implement encryption or secure storage mechanisms for the hostapd.conf configuration file. Instead of storing credentials in an encrypted keystore or using hardware-backed secure storage, the configuration handler writes sensitive data directly to a plaintext file in the /tmp/ directory.
Attack Vector
Exploitation requires physical access to the Thinkware F800 Pro device. An attacker would need to:
- Remove the dashcam from the vehicle or gain access while installed
- Access the device's filesystem, either by removing storage media or connecting via debug interfaces
- Navigate to the /tmp/hostapd.conf file location
- Read the plaintext configuration to extract sensitive credentials
The physical access requirement limits the attack surface, but in scenarios such as rental vehicles, shared vehicles, or stolen devices, this vulnerability poses a real risk. The extracted WiFi credentials could be used to connect to the dashcam's hotspot, potentially enabling access to recorded footage or manipulation of device settings.
Detection Methods for CVE-2025-2120
Indicators of Compromise
- Evidence of physical tampering with the dashcam device
- Unauthorized access to dashcam WiFi hotspot from unknown devices
- Missing or modified configuration files on the device
- Unexpected connections appearing in dashcam network logs
Detection Strategies
- Implement physical security monitoring for vehicle dashcam installations
- Review connected device lists in the dashcam mobile application for unauthorized connections
- Monitor for any unusual network traffic from the dashcam hotspot
- Enable logging features if available to track configuration file access
Monitoring Recommendations
- Regularly audit devices connected to the dashcam's WiFi hotspot
- Implement tamper-evident seals or mounting solutions for the dashcam
- Review vehicle access logs in fleet management scenarios
- Consider disabling WiFi hotspot functionality when not actively needed
How to Mitigate CVE-2025-2120
Immediate Actions Required
- Disable the WiFi hotspot feature when not actively in use to reduce exposure
- Change the default WiFi password to a strong, unique credential
- Physically secure the dashcam device to prevent unauthorized removal
- Monitor for any unauthorized connections to the dashcam network
- Consider firmware updates when available from Thinkware
Patch Information
As of the last update, Thinkware has not released a security patch for this vulnerability. The vendor was contacted during the disclosure process but did not respond. Users should monitor the Thinkware website and official support channels for any future firmware updates addressing this issue. Additional technical details can be found in the VulDB advisory and the GitHub Thinkware Dashcam repository.
Workarounds
- Disable the WiFi hotspot functionality entirely if mobile app connectivity is not required
- Use strong, randomly generated passwords for the dashcam WiFi network and rotate them periodically
- Implement physical security measures such as anti-theft mounts or tamper-evident enclosures
- Avoid storing the dashcam in locations where unauthorized physical access is possible
- In fleet scenarios, implement policies for regular credential rotation and device auditing
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
