Certain NETGEAR devices are affected by authentication bypass.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• netgear r6300 firmwarebefore 1.0.4.8
• netgear r6400 firmwarebefore 1.0.1.20
• netgear r6700 firmwarebefore 1.0.1.20
• netgear r6900 firmwarebefore 1.0.1.20
• netgear r7000 firmwarebefore 1.0.7.10
• netgear r7100lg firmwarebefore 1.0.0.32
• netgear r7300dst firmwarebefore 1.0.0.52
• netgear r7900 firmwarebefore 1.0.1.16
• netgear r8000 firmwarebefore 1.0.3.36
• netgear r8300 firmwarebefore 1.0.2.94
• netgear r8500 firmwarebefore 1.0.2.94
• netgear wndr3400 firmwarebefore 1.0.1.12
• netgear wnr3500l firmwarebefore 1.2.0.40

Other highest-scoring records for the same primary product.

• CVE-2017-18732Certain NETGEAR devices are affected by authentication bypass.
  35Monitor
• CVE-2017-18755Certain NETGEAR devices are affected by CSRF.
  35Monitor
• CVE-2017-18848Certain NETGEAR devices are affected by CSRF.
  35Monitor
• CVE-2017-18794Certain NETGEAR devices are affected by command injection.
  33Monitor
• CVE-2017-18765Certain NETGEAR devices are affected by denial of service.
  26Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1app.use("/admin", requireSession, adminRouter);2
3// Route added later skips the middleware4app.post("/admin-api/config", updateConfig);

1const admin = express.Router();2admin.use(requireSession, requireRole("admin"));3
4admin.post("/config", updateConfig);5app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.