PT-2020-14959 · NetGear · Netgear R6220+6

Published 2020-09-15 · Updated 2021-03-12 · CVE-2020-17409

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66

Description This issue allows network-adjacent attackers to disclose sensitive information on affected installations. Authentication is not required to exploit this issue. The specific flaw exists within the mini httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this issue to disclose stored credentials, leading to further compromise.

Recommendations For NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66, consider disabling the mini httpd service until a patch is available. Restrict access to TCP port 80 to minimize the risk of exploitation. Avoid accessing protected pages until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2020-17409

ZDI-20-1176

Affected Products

Netgear Jnr3210

Netgear R6020

Netgear R6080

Netgear R6120

Netgear R6220

Netgear R6260

Netgear Wnr2020

References · 5

• https://osv.dev/vulnerability/CVE-2020-17409 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-20-1176 · Security Note
• https://kb.netgear.com/000062304/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-PSV-2020-0258 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-17409 · Security Note
• https://t.me/cybersecuritytechnologies/2888 · Telegram Post