NETGEAR · Multiple Devices
CVE-2017-5521
NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
What it is
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.
CISA: Multiple NETGEAR devices are prone to admin password disclosure via simple crafted requests to the web management server.
What to do
Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
Deadline for US federal agencies: September 29, 2022
More exploited flaws from NETGEAR
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Jun 8, 2022 | Buffer Overflow | Multiple Devices | Critical 9.8 | 46% |
| Mar 25, 2022 | Multiple WAP Devices Command Injection | Wireless Access Point (WAP) Devices | Critical 9.8 | 98% |
| Mar 25, 2022 | OS Command Injection | DGN2200 Devices | High 8.8 | 73% |
| Mar 25, 2022 | Buffer Overflow | WNR2000v5 Router | Critical 9.8 | 83% |
| Mar 7, 2022 | Remote Code Execution | Multiple Routers | High 8.8 | 99.8% |
| Mar 7, 2022 | DGN2200 Remote Code Execution | Wireless Router DGN2200 | Critical 9.8 | 69% |
| Nov 3, 2021 | Missing Function Level Access Control | JGS516PE Devices | Critical 9.8 | 57% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.