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| D-Link DIR-850L
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Security Grade
Calculator v
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D-Link DIR-850L
Category: Router • Model / Gen: DIR-850L
Release Date: 2013-05-01 • Status: End of life
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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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None
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π Proof
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Physical tampering not the primary risk.
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| Known vulnerabilities
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Very common
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π Proof
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30+ CVEs: CVE-2017-14429 (9.8), CVE-2016-5681 RCE, CVE-2017-14421 hardcoded password.
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| Prior attacks
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Very common
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π Proof
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Targeted by Mirai variants (FICORA, MooBot, CAPSAICIN); AryStinger infections ~75% DIR-850L.
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| Updatability
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None
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π Proof
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End-of-life; no further firmware updates.
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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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No
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π Proof
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HNAP interface authentication bypass (CVE-2017-3193).
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| Communications
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No encryption
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π Proof
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Web admin and HNAP run over plaintext HTTP.
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| Storage
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No encryption
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π Proof
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Hardcoded root credential wrgac25_dlink.2013gui_dir850l in firmware.
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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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π Proof
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Single admin account with limited management.
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| Authentication
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Absent
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π Proof
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Hardcoded credentials and authentication bypass.
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| Brute-force protection
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Absent
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π Proof
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No login rate limiting.
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| Event logging
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Partial logging
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π Proof
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Basic system logs only.
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| Passwords
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Default/Common/Easy to guess
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π Proof
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Default/factory passwords and hardcoded credentials.
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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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D-Link firmware (Linux-based) (Companion App: mydlink app)
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| Hardware (CPU / GPU)
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CPU: • GPU:
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| Memory & Storage
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Memory: • Storage: Flash + USB storage
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| Power, Battery & Charging
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Battery: • Power: 12 V DC adapter • Charging:
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| Display & Camera
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Display: • Camera:
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| Sound & Connectivity
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Sound: • Connectivity: Wi-Fi 802.11ac, Gigabit Ethernet, USB
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| Physical (Dimensions & Mass)
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Dimensions: • Mass:
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DIR-850L is an end-of-life router with 30+ CVEs, hardcoded credentials and a long history as a Mirai-variant botnet target (AryStinger infections ~75% DIR-850L). No updates will ever arrive, making it the worst-scoring device here.