PT-2021-5947 · NetGear · Netgear R7000+11

R00T3R · Published 2021-12-20 · Updated 2022-01-07 · CVE-2021-45526

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions NETGEAR EX6000 versions 1.0.0.0 through 1.0.0.37 NETGEAR EX6120 versions 1.0.0.0 through 1.0.0.47 NETGEAR EX6130 versions 1.0.0.0 through 1.0.0.29 NETGEAR R6300v2 versions 1.0.0.0 through 1.0.4.51 NETGEAR R6400 versions 1.0.0.0 through 1.0.1.51 NETGEAR R7000 versions 1.0.0.0 through 1.0.11.125 NETGEAR R7900 versions 1.0.0.0 through 1.0.4.29 NETGEAR R8000 versions 1.0.0.0 through 1.0.4.51 NETGEAR R7000P versions 1.0.0.0 through 1.3.2.123 NETGEAR R8000P versions 1.0.0.0 through 1.4.1.49 NETGEAR RAX80 versions 1.0.0.0 through 1.0.3.87 NETGEAR R6900P versions 1.0.0.0 through 1.3.2.123 NETGEAR R7900P versions 1.0.0.0 through 1.4.1.49 NETGEAR RAX75 versions 1.0.0.0 through 1.0.3.87

Description The issue is related to a buffer overflow that can be triggered by an authenticated user. This is due to the lack of size checking for input data, which can allow an attacker to gain unauthorized access to protected information.

Recommendations For NETGEAR EX6000 versions 1.0.0.0 through 1.0.0.37, update to version 1.0.0.38 or later. For NETGEAR EX6120 versions 1.0.0.0 through 1.0.0.47, update to version 1.0.0.48 or later. For NETGEAR EX6130 versions 1.0.0.0 through 1.0.0.29, update to version 1.0.0.30 or later. For NETGEAR R6300v2 versions 1.0.0.0 through 1.0.4.51, update to version 1.0.4.52 or later. For NETGEAR R6400 versions 1.0.0.0 through 1.0.1.51, update to version 1.0.1.52 or later. For NETGEAR R7000 versions 1.0.0.0 through 1.0.11.125, update to version 1.0.11.126 or later. For NETGEAR R7900 versions 1.0.0.0 through 1.0.4.29, update to version 1.0.4.30 or later. For NETGEAR R8000 versions 1.0.0.0 through 1.0.4.51, update to version 1.0.4.52 or later. For NETGEAR R7000P versions 1.0.0.0 through 1.3.2.123, update to version 1.3.2.124 or later. For NETGEAR R8000P versions 1.0.0.0 through 1.4.1.49, update to version 1.4.1.50 or later. For NETGEAR RAX80 versions 1.0.0.0 through 1.0.3.87, update to version 1.0.3.88 or later. For NETGEAR R6900P versions 1.0.0.0 through 1.3.2.123, update to version 1.3.2.124 or later. For NETGEAR R7900P versions 1.0.0.0 through 1.4.1.49, update to version 1.4.1.50 or later. For NETGEAR RAX75 versions 1.0.0.0 through 1.0.3.87, update to version 1.0.3.88 or later.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-00462

CVE-2021-45526

Affected Products

Netgear Ex6000

Netgear Ex6120

Netgear Ex6130

Netgear R6300V2

Netgear R6400

Netgear R6900P

Netgear R7000

Netgear R7000P

Netgear R7900

Netgear R8000

Netgear Rax75

Netgear Rax80

References · 5

• https://kb.netgear.com/000064446/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Extenders-PSV-2019-0078 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45526 · Security Note
• https://bdu.fstec.ru/vul/2022-00462 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45526 · Vendor Advisory
• https://t.me/cvenotify/25084 · Telegram Post