Good morning.
Whilst we don’t supply Netgear routers, we know that a number of our customers use them, so wanted to ensure you were aware of potential vulnerabilities that need to be addressed via a firmware update.
The list of (so far) affected models is below. You or your IT specialist should ensure that you update as soon as possible to mitigate any risks.
List of NETGEAR Routers At Risk
DGN2200v4
R6100
R6220
R6250
R6300v2
R6400
R6400v2
R6700
R6900
R6900P
R7000
R7000P
R7100LG
R7300DST
R7500
R7500v2
R7800
D7800
R7900
R8000
R8300
R8500
D8500
WNDR3400v3
WNDR4500v2
EX6200v2
The Five Vulnerabilities
TWSL2018-002: Password Recovery and File Access
Some routers allow arbitrary file reading from the device provided that the path to file is known. Total of 17 products are affected.
TWSL2018-003: Finding 1: Post-Authentication Command Injection
This one affects six products and reflects a root level OS command execution via the device_name parameter on the lan.cgi page, although the attack requires authentication.
TWSL2018-003: Finding 2: Authentication Bypass
This also affects large set of products (17) and is trivial to exploit. Authentication is bypassed if “&genie=1” is found within the query string.
TWSL2018-003: Chained Attack: Command Injection
This is a three-stage attack leveraging three separate issues: CSRF token recovery vulnerability and the two findings in TWSL2018-003. As a result, any user connected to the router can run OS commands as root on the device without providing any credentials.
TWSL2018-004: Command Injection Vulnerability on D7000, EX6200v2 and Some Routers
Only 6 products are affected, this allows to run OS commands as root during short time window when WPS is activated.