PT-2020-8822 · NetGear · R7800+6

Mongo · Published 2020-04-27 · Updated 2020-05-01 · CVE-2018-21178

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions 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 allows for potential unauthorized access or control.

Recommendations For NETGEAR R7800 versions prior to 1.0.2.40, update to version 1.0.2.40 or later. For NETGEAR R9000 versions prior to 1.0.2.52, update to version 1.0.2.52 or later. For NETGEAR WNDR3700v4 versions prior to 1.0.2.92, update to version 1.0.2.92 or later. For NETGEAR WNDR4300 versions prior to 1.0.2.94, update to version 1.0.2.94 or later. For NETGEAR WNDR4300v2 versions prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNDR4500v3 versions prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNR2000v5 versions 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-2018-21178

Affected Products

R7800

R9000

Wndr3700V4

Wndr4300

Wndr4300V2

Wndr4500V3

Wnr2000V5

References · 4

• https://kb.netgear.com/000055180/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2621 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-21178 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21178 · Security Note
• https://t.me/cvenotify/3287 · Telegram Post