CVE-2020-27866

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355.

NVD

Severity: HIGH
CVE ID: CVE-2020-27866
CVSS Score: 8.8
CVSS Metrics: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Zero Day Initiative

Severity: HIGH
CVE ID: CVE-2020-27866
CVSS Score: 8.8
CVSS Metrics: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Refrence: NVDMITRE

Proof Of Concept

Nuclei Templates for CVE-2020-27866

Refrence: Project Discovery GitHub