NetSight
high8.1Known exploitedPublic exploit code

CVE-2017-5521

NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-09-08. Federal due date: 2022-09-29.

Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices. They are prone to password disclosure via simple crafted requests to the web management server. The bug is exploitable remotely if the remote management option is set, and can also be exploited given access to the router over LAN or WLAN. When trying to access the web panel, a user is asked to authenticate; if the authentication is canceled and password recovery is not enabled, the user is redirected to a page that exposes a password recovery token. If a user supplies the correct token to the page /passwordrecovered.cgi?id=TOKEN (and password recovery is not enabled), they will receive the admin password for the router. If password recovery is set the exploit will fail, as it will ask the user for the recovery questions that were previously set when enabling that feature. This is persistent (even after disabling the recovery option, the exploit will fail) because the router will ask for the security questions.

Affected products

VendorProductAffected versions
NetgearR6200 Firmware
Version 1.0.1.56_1.0.43
NetgearR6300 Firmware
Version 1.0.2.78_1.0.58
NetgearVegn2610 Firmware
Version 1.0.0.36
NetgearAc1450 Firmware
Version 1.0.0.34_10.0.16
NetgearWnr1000v3 Firmware
Version 1.0.2.68_60.0.93
NetgearWndr3700v3 Firmware
Version 1.0.0.40_1.0.32
NetgearWndr4000 Firmware
Version 1.0.2.4_9.1.86
NetgearWndr4500 Firmware
Version 1.0.1.44_1.0.73
NetgearD6400 Firmware
Version 1.0.0.44
NetgearD6220 Firmware
Version 1.0.0.12
NetgearD6300 Firmware
Version 1.0.0.96
NetgearD6300b Firmware
Version 1.0.0.40

References