CVE-2021-34865: This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR routers. Authentication is not…

PriorityP261high8.8CVSS 3.1

AVAACLPRNUINSUCHIHAH

EPSS

3.08%

86.2th percentile

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR 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 vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-13313.

Affected

18 ranges

Vendor	Product	Version range	Fixed in
netgear	ac2100_firmware	< 1.2.0.88	1.2.0.88
netgear	ac2400_firmware	< 1.2.0.88	1.2.0.88
netgear	ac2600_firmware	< 1.2.0.88	1.2.0.88
netgear	d7000v1_firmware	< 1.0.1.80	1.0.1.80
netgear	multiple_routers	—	—
netgear	r6220_firmware	< 1.1.0.110	1.1.0.110
netgear	r6230_firmware	< 1.1.0.110	1.1.0.110
netgear	r6260_firmware	< 1.1.0.84	1.1.0.84
netgear	r6330_firmware	< 1.1.0.84	1.1.0.84
netgear	r6350_firmware	< 1.1.0.84	1.1.0.84
netgear	r6700v2_firmware	< 1.2.0.88	1.2.0.88
netgear	r6800_firmware	< 1.2.0.88	1.2.0.88
netgear	r6850_firmware	< 1.1.0.84	1.1.0.84
netgear	r6900v2_firmware	< 1.2.0.88	1.2.0.88
netgear	r7200_firmware	< 1.2.0.88	1.2.0.88
netgear	r7350_firmware	< 1.2.0.88	1.2.0.88
netgear	r7400_firmware	< 1.2.0.88	1.2.0.88
netgear	r7450_firmware	< 1.2.0.88	1.2.0.88

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv3.08.8HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.08.3HIGHAV:A/AC:L/Au:N/C:C/I:C/A:C

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