PT-2020-8829 · NetGear · Netgear R7800+9

Mongo · Published 2020-04-28 · Updated 2020-05-06 · CVE-2018-21185

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions NETGEAR D6100 versions prior to 1.0.0.57 NETGEAR D7800 versions prior to 1.0.1.34 NETGEAR R7500 versions prior to 1.0.0.122 NETGEAR R7500v2 versions prior to 1.0.3.24 NETGEAR R7800 versions prior to 1.0.2.40 NETGEAR R9000 versions prior to 1.0.2.52 NETGEAR WNDR3700v4 versions prior to 1.0.2.92 NETGEAR WNDR4300 versions prior to 1.0.2.94 NETGEAR WNDR4300v2 versions prior to 1.0.0.50 NETGEAR WNDR4500v3 versions prior to 1.0.0.50 NETGEAR WNR2000v5 versions prior to 1.0.0.62

Description The issue is a stack-based buffer overflow that can be exploited by an authenticated user. This affects various NETGEAR devices.

Recommendations For NETGEAR D6100 version prior to 1.0.0.57, update to version 1.0.0.57 or later. For NETGEAR D7800 version prior to 1.0.1.34, update to version 1.0.1.34 or later. For NETGEAR R7500 version prior to 1.0.0.122, update to version 1.0.0.122 or later. For NETGEAR R7500v2 version prior to 1.0.3.24, update to version 1.0.3.24 or later. For NETGEAR R7800 version prior to 1.0.2.40, update to version 1.0.2.40 or later. For NETGEAR R9000 version prior to 1.0.2.52, update to version 1.0.2.52 or later. For NETGEAR WNDR3700v4 version prior to 1.0.2.92, update to version 1.0.2.92 or later. For NETGEAR WNDR4300 version prior to 1.0.2.94, update to version 1.0.2.94 or later. For NETGEAR WNDR4300v2 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNDR4500v3 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNR2000v5 version prior to 1.0.0.62, update to version 1.0.0.62 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-21185

Affected Products

Netgear R6100

Netgear R7800

Netgear R7500

Netgear R7500V2

Netgear R9000

Netgear Wndr3700V4

Netgear Wndr4300

Netgear Wndr4300V2

Netgear Wndr4500V3

Netgear Wnr2000V5

References · 4

• https://kb.netgear.com/000055173/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2610 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-21185 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21185 · Security Note
• https://t.me/cvenotify/3311 · Telegram Post