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Test ID:1.3.6.1.4.1.25623.1.0.106536
Category:Web application abuses
Title:NETGEAR Devices Password Disclosure Vulnerability
Summary:Multiple NETGEAR devices are prone to an admin password disclosure; vulnerability
Description:Summary:
Multiple NETGEAR devices are prone to an admin password disclosure
vulnerability

Vulnerability Insight:
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 Software/OS:
NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3,
WNR3500Lv2, R6250, R6700, R6900 and R8000 devices

Solution:
As a mitigation manually enable the password recovery feature on your
device and ensure that remote management is disabled.

CVSS Score:
4.3

CVSS Vector:
AV:N/AC:M/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-5521
BugTraq ID: 95457
http://www.securityfocus.com/bid/95457
https://www.exploit-db.com/exploits/41205/
CopyrightCopyright (C) 2017 Greenbone AG

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