(Pwn2Own) NETGEAR R6700v3 Improper Certificate Validation Vulnerability

2022-03-2300:00:00

Kevin Denis (@0xmitsurugi) and Antide Petit (@xarkes_) from @Synacktiv

www.zerodayinitiative.com

netgear r6700v3

https

certificate validation

vulnerability

compromise

integrity

authentication

network

download

files

server

arbitrary code

EPSS

0.001

Percentile

35.4%

JSON

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.