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| TP-Link HS110 Smart Plug
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Security Grade
Calculator v1
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TP-Link HS110 Smart Plug
Release Date: 2016-01-15 • Status: End of sale
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Security Evaluation
1. Device Security
| Criterion
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Value
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Proof
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Comment
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| Known hardware tampering
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Rare
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🔗 Proof
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Hardware modification and firmware dumping widely documented
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| Known vulnerabilities
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Very common
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🔗 Proof
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Multiple critical remote code execution vulnerabilities
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| Prior attacks
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Very common
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🔗 Proof
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Used in Mirai botnet attacks
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| Updatability
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Rare
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🔗 Proof
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Firmware updates ended years ago
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| Category Score
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Score: 3 / 3
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2. System Security
| Criterion
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Value
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Proof
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Comment
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| Authentication with other systems
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Partial
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🔗 Proof
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Weak authentication, default password risks
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| Communications
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No encryption
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🔗 Proof
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Local traffic unencrypted
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| Storage
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No encryption
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🔗 Proof
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Local configuration stored without encryption
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| Category Score
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Score: 3 / 3
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3. User Authentication
| Criterion
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Value
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Proof
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Comment
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| Account management
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Basic
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🔗 Proof
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Cloud account exists but local device has weak auth
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| Authentication
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Absent
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🔗 Proof
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Default credentials widely known
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| Brute-force protection
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Basic
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🔗 Proof
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No rate limiting for login attempts
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| Event logging
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Absent
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🔗 Proof
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No local access logs
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| Passwords
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Require change after setup with complexity requirements
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🔗 Proof
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Simple passwords allowed, no forced rotation
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| Category Score
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Score: 3 / 3
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Technical Specifications
| Property
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Details
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| Operating System & App
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Custom embedded TP-Link OS (Companion App: Kasa Smart)
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| Hardware (CPU / GPU)
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CPU: Qualcomm QCA4010 • GPU: N/A
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| Memory & Storage
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Memory: 128 KB RAM • Storage: 1 MB flash
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| Power, Battery & Charging
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Battery: No battery, mains powered • Power: 100–240V AC • Charging: N/A
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| Display & Camera
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Display: LED indicator only • Camera: None
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| Sound & Connectivity
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Sound: No speaker • Connectivity: Wi‑Fi 802.11 b/g/n
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| Physical (Dimensions & Mass)
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Dimensions: Height:100 mm / Width:66 mm / Thickness:77 mm • Mass: 185 g
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Device Overview
- Manufacturer: TP-Link
- Model Number: HS110
- Firmware Versions affected: 1.5.0 and earlier
- Use-case: Wi-Fi smart power plug, energy monitoring, remote on/off control.
Vulnerabilities & Attack Surface
- CVE ID: CVE-2020-8328
- Vulnerability description: The local communication protocol uses weak XOR encryption. LAN attackers can sniff and forge control commands.
- Attack vector: Adjacent network (LAN).
CIA Triad Impact Analysis
- Confidentiality: Power usage data and device token intercepted.
- Integrity: Attacker toggle outlet state arbitrarily.
- Availability: Flood forged commands to crash device service.
Mitigations / Countermeasures
- 1. Apply latest TP-Link firmware update.
- 2. Isolate IoT devices on separate VLAN.
- 3. Avoid exposing plug to internet port forwarding.
- 4. Use cloud authentication only over TLS.
References
[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8328
[2] TP-Link security notice for HS series
