CVE-2020-27866

Published Feb 12, 2021

Last updated 4 years ago

CVSS high 8.8

Overview

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.
Source: zdi-disclosures@trendmicro.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

CVSS 3.0

Type: Secondary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

CVSS 2.0

Type: Primary
Base score: 8.3
Impact score: 10
Exploitability score: 6.5
Vector string: AV:A/AC:L/Au:N/C:C/I:C/A:C

Weaknesses

zdi-disclosures@trendmicro.com: CWE-288
nvd@nist.gov: CWE-287

Hype score: Not currently trending

Configurations

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Overview

Risk scores

CVSS 3.1

CVSS 3.0

CVSS 2.0

Weaknesses

Social media

Configurations

References