Actively exploited in the wild
NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
NETGEAR - Multiple Devices · Listed in the CISA KEV since 2022-09-08. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
CVE-2017-5521
HighCVSS 8.1KEVSummary
Na urządzeniach NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900 i R8000 występuje problem z ujawnieniem hasła poprzez specjalnie skonstruowane żądania do serwera zarządzania siecią. W przypadku wyłączonej opcji odzyskiwania hasła, użytkownik może uzyskać dostęp do hasła administratora routera.
Risk Assessment
Ryzyko dla organizacji polega na możliwości zdalnego ujawnienia hasła administratora, co może prowadzić do nieautoryzowanego dostępu do urządzenia i sieci. W przypadku aktywnej opcji zdalnego zarządzania, atakujący może wykorzystać tę podatność z dowolnego miejsca.
Recommendation
Zaleca się wyłączenie opcji zdalnego zarządzania oraz włączenie funkcji odzyskiwania hasła, aby zminimalizować ryzyko. Dodatkowo, należy regularnie aktualizować oprogramowanie urządzeń w celu usunięcia znanych podatności.
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Original NVD description (English source)
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.