8.8

CVE-2020-27866

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.

Data is provided by the National Vulnerability Database (NVD)
Netgear ≫ Ac2100 Firmware Version < 1.2.0.76
   Netgear ≫ Ac2100 Version-
Netgear ≫ Ac2400 Firmware Version < 1.2.0.76
   Netgear ≫ Ac2400 Version-
Netgear ≫ Ac2600 Firmware Version < 1.2.0.76
   Netgear ≫ Ac2600 Version-
Netgear ≫ R6700 Firmware Version < 1.2.0.76
   Netgear ≫ R6700 Versionv2
Netgear ≫ R6800 Firmware Version < 1.2.0.76
   Netgear ≫ R6800 Version-
Netgear ≫ R6900 Firmware Version < 1.2.0.76
   Netgear ≫ R6900 Versionv2
Netgear ≫ R7200 Firmware Version < 1.2.0.76
   Netgear ≫ R7200 Version-
Netgear ≫ R7350 Firmware Version < 1.2.0.76
   Netgear ≫ R7350 Version-
Netgear ≫ R7400 Firmware Version < 1.2.0.76
   Netgear ≫ R7400 Version-
Netgear ≫ R7450 Firmware Version < 1.2.0.76
   Netgear ≫ R7450 Version-
Netgear ≫ R6220 Firmware Version < 1.1.0.104
   Netgear ≫ R6220 Version-
Netgear ≫ R6230 Firmware Version < 1.1.0.104
   Netgear ≫ R6230 Version-
Netgear ≫ R6260 Firmware Version < 1.1.0.78
   Netgear ≫ R6260 Version-
Netgear ≫ R6330 Firmware Version < 1.1.0.78
   Netgear ≫ R6330 Version-
Netgear ≫ R6350 Firmware Version < 1.1.0.78
   Netgear ≫ R6350 Version-
Netgear ≫ R6850 Firmware Version < 1.1.0.78
   Netgear ≫ R6850 Version-
Netgear ≫ R6120 Firmware Version < 1.0.0.76
   Netgear ≫ R6120 Version-
Netgear ≫ R6020 Firmware Version < 1.0.0.48
   Netgear ≫ R6020 Version-
Netgear ≫ R6080 Firmware Version < 1.0.0.48
   Netgear ≫ R6080 Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 89.76% 0.995
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 8.3 6.5 10
AV:A/AC:L/Au:N/C:C/I:C/A:C
zdi-disclosures@trendmicro.com 8.8 2.8 5.9
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-288 Authentication Bypass Using an Alternate Path or Channel

The product requires authentication, but the product has an alternate path or channel that does not require authentication.