PT-2021-5848 · NetGear · Netgear Rbr50+5

Published 2021-09-25 · Updated 2022-07-12 · CVE-2021-45661

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions NETGEAR RBK40 versions prior to 2.5.1.16 NETGEAR RBR40 versions prior to 2.5.1.16 NETGEAR RBS40 versions prior to 2.5.1.16 NETGEAR RBK20 versions prior to 2.5.1.16 NETGEAR RBR20 versions prior to 2.5.1.16 NETGEAR RBS20 versions prior to 2.5.1.16 NETGEAR RBK50 versions prior to 2.5.1.16 NETGEAR RBR50 versions prior to 2.5.1.16 NETGEAR RBS50 versions prior to 2.5.1.16 NETGEAR RBS50Y versions prior to 2.6.1.40

Description The issue is related to incorrect code generation management in the embedded software of NETGEAR Wi-Fi routers, which can lead to a server-side include injection (SSI) attack. This allows an attacker to execute malicious code on the server.

Recommendations For NETGEAR RBK40, RBR40, RBS40, RBK20, RBR20, RBS20, RBK50, RBR50, RBS50 versions prior to 2.5.1.16, update to version 2.5.1.16 or later. For NETGEAR RBS50Y version prior to 2.6.1.40, update to version 2.6.1.40 or later.

Fix

Special Elements Injection

Code Injection

Weakness Enumeration

CWE-74

CWE-94

Related Identifiers

BDU:2022-00363

CVE-2021-45661

Affected Products

Netgear Rbr20

Netgear Rbk40

Netgear Rbr50

Netgear Cbr40

Netgear Rbs40

Netgear Rbs50

References · 4

• https://bdu.fstec.ru/vul/2022-00363 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-45661 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45661 · Vendor Advisory
• https://kb.netgear.com/000064065/Security-Advisory-for-Server-Side-Injection-on-Some-WiFi-Systems-PSV-2019-0134 · Vendor Advisory