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CVE-2017-5521

NETGEAR — NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability

NETGEAR · Not classified by connected sources · in CISA KEV since 2022-09-08

KEV since 2022 · listed over a yearCISA KEVActively Exploited
82

EVRS 82 of 100 Urgent

Patch This Cycle

Rank 541 of 2,954 tracked

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Why it scores 82

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and an EPSS probability of 0.894.

  • CISA KEVApplied
  • RansomwareDid not apply
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

No fixed version identified yet

CISA required action

Affected versions

  • r6200 firmware1.0.1.56 1.0.43
  • r6300 firmware1.0.2.78 1.0.58
  • vegn2610 firmware1.0.0.36
  • ac1450 firmware1.0.0.34 10.0.16
  • wnr1000v3 firmware1.0.2.68 60.0.93
  • wndr3700v3 firmware1.0.0.40 1.0.32
  • wndr4000 firmware1.0.2.4 9.1.86
  • wndr4500 firmware1.0.1.44 1.0.73

+18 more affected products; see the full list at NVD.

Remediation

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

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 8.1 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.894 (99.79th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Unknown or none CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-09-29 · KEV since 2022 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 8.1 (v3.1), assigned by mitre. Listed ENISA EUVD

Description

NVD

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.

What CISA says to do

Public module

Metasploit lists a public normal-rank module for this CVE: NETGEAR Administrator Password Disclosure (gather/netgear_password_disclosure). A module existing is not the same as active exploitation; see metasploit.com.