#VU49683 Improper Authentication in NETGEAR products - CVE-2020-27872

Vulnerability identifier: #VU49683

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2020-27872

CWE-ID: CWE-287

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
AC2100
AC2400
AC2600
R6700v2
R6800
R6900v2
R7200
R7350
R7400
R7450
R6220
R6230
R6260
R6330
R6350
R6850
R6120
R6020
R6080

Software vendor:
NETGEAR

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper state tracking in the password recovery process within the "mini_httpd" service. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.

Install updates from vendor's website.

• https://www.zerodayinitiative.com/advisories/ZDI-21-071/
• https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers