Samsung SmartThings Hub V3 (STH-ETH-250)

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Samsung SmartThings Hub V3 (STH-ETH-250)
Security Grade
   
     C
   
Calculator v1
Samsung SmartThings Hub V3 (STH-ETH-250)
   Brand: Samsung (Parent: Samsung Electronics)
   Category: Smart Home Hub • Model / Gen: 3rd STH-ETH-250
   Release Date: 2018-08-13 • Status: In sale
   Classification Date: 2026-10-28 • Official Website

Security Evaluation

1. Device Security

Criterion Value Proof Comment
Known hardware tampering Rare πŸ”— Proof Wall/plug-mounted hub; physical access not primary threa
Known vulnerabilities Very common πŸ”— Proof Cisco Talos disclosed 20 vulnerabilities in 2018: CVE-2018-3856 through CVE-2018-3917, including unauthenticated RCE, SQLi, command injection, buffer overflows
Prior attacks Rare πŸ”— Proof Demonstrated exploit chain could take over locks/cameras; not major botnet node
Updatability Rare πŸ”— Proof Patches issued in 2018; V3 now legacy, superseded by newer Hub
Category Score Score: 3 / 3

2. System Security

Criterion Value Proof Comment
Authentication with other systems No πŸ”— Proof hubCore listens on port 39500 and relays unauthenticated messages to remote servers
Communications Encrypted with up-to-date encryption πŸ”— Proof Crash minidumps sent over insecure HTTPS to backtrace.io; modern firmware uses TLS
Storage Encrypted with up-to-date encryption πŸ”— Proof Sensitive data in minidumps exposed; patched in later firmware
Category Score Score: 2 / 3

3. User Authentication

Criterion Value Proof Comment
Account management Basic πŸ”— Proof Samsung account required; role-based sharing limited
Authentication Basic πŸ”— Proof Local HTTP server accepted unauthenticated JSON
Brute-force protection Basic πŸ”— Proof Account-level protections only
Event logging Partial logging πŸ”— Proof Hub logs basic events; not full access audit
Passwords Require change after setup πŸ”— Proof Default hub password changed during setup
Category Score Score: 2 / 3

Technical Specifications

Property Details
Operating System & App Embedded Linux (Ubuntu Core) (Companion App: SmartThings)
Hardware (CPU / GPU) CPU: Samsung Exynos • GPU:
Memory & Storage Memory: 1 GB RAM • Storage: 8 GB eMMC
Power, Battery & Charging Battery: No battery • Power: 5V DC power adapter • Charging: N/A
Display & Camera Display: No display • Camera: No camera
Sound & Connectivity Sound: No speaker • Connectivity: Wi-Fi, Zigbee, Z-Wave, Bluetooth, Ethernet
Physical (Dimensions & Mass) Dimensions: 4.9 x 3.0 x 1.0 inches • Mass: 0.5 lbs (227 g)