D-Link DIR-850L

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D-Link DIR-850L
Security Grade
   
     F
   
Calculator v
D-Link DIR-850L
   Brand: D-Link (Parent: D-Link Corporation)
   Category: Router • Model / Gen:  DIR-850L
   Release Date: 2013-05-01 • Status: End of life
   Classification Date:  • Official Website

Security Evaluation

1. Device Security

Criterion Value Proof Comment
Known hardware tampering None πŸ”— Proof Physical tampering not the primary risk.
Known vulnerabilities Very common πŸ”— Proof 30+ CVEs: CVE-2017-14429 (9.8), CVE-2016-5681 RCE, CVE-2017-14421 hardcoded password.
Prior attacks Very common πŸ”— Proof Targeted by Mirai variants (FICORA, MooBot, CAPSAICIN); AryStinger infections ~75% DIR-850L.
Updatability None πŸ”— Proof End-of-life; no further firmware updates.
Category Score Score: 3 / 3

2. System Security

Criterion Value Proof Comment
Authentication with other systems No πŸ”— Proof HNAP interface authentication bypass (CVE-2017-3193).
Communications No encryption πŸ”— Proof Web admin and HNAP run over plaintext HTTP.
Storage No encryption πŸ”— Proof Hardcoded root credential wrgac25_dlink.2013gui_dir850l in firmware.
Category Score Score: 3 / 3

3. User Authentication

Criterion Value Proof Comment
Account management Basic πŸ”— Proof Single admin account with limited management.
Authentication Absent πŸ”— Proof Hardcoded credentials and authentication bypass.
Brute-force protection Absent πŸ”— Proof No login rate limiting.
Event logging Partial logging πŸ”— Proof Basic system logs only.
Passwords Default/Common/Easy to guess πŸ”— Proof Default/factory passwords and hardcoded credentials.
Category Score Score: 3 / 3

Technical Specifications

Property Details
Operating System & App D-Link firmware (Linux-based) (Companion App: mydlink app)
Hardware (CPU / GPU) CPU: • GPU:
Memory & Storage Memory: • Storage: Flash + USB storage
Power, Battery & Charging Battery: • Power: 12 V DC adapter • Charging:
Display & Camera Display: • Camera:
Sound & Connectivity Sound: • Connectivity: Wi-Fi 802.11ac, Gigabit Ethernet, USB
Physical (Dimensions & Mass) Dimensions: • Mass:


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.