high
8.8
CWE
863
Advisory Published
Advisory Published
Updated

CVE-2022-27642: (Pwn2Own) NETGEAR R6700v3 httpd Authentication Bypass Vulnerability

First published: Wed Mar 29 2023(Updated: )

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-15854.

Credit: zdi-disclosures@trendmicro.com

Affected SoftwareAffected VersionHow to fix
NETGEAR R6700v3 firmware
NETGEAR CAX80<2.1.3.7
NETGEAR CAX80 Firmware
NETGEAR LAX20<1.1.6.34
NETGEAR LAX20
NETGEAR MR60 firmware<1.1.6.124
NETGEAR MR60 firmware
NETGEAR MR80<1.1.6.14
NETGEAR Multiple Routers
NETGEAR MS60<1.1.6.124
NETGEAR MS60 firmware
NETGEAR MS80<1.1.6.14
NETGEAR MS80
NETGEAR R6400 firmware<1.0.1.78
NETGEAR R6400 firmware
NETGEAR R6400 firmware<1.0.4.126
NETGEAR R6400 firmware=v2
NETGEAR R6700 firmware<1.0.4.126
NETGEAR R6700v1 firmware=v3
NETGEAR R6900P Firmware<1.3.3.148
Netgear R6900 Firmware
NETGEAR Nighthawk R7000<1.0.11.134
NETGEAR Nighthawk R7000
NETGEAR R7000P firmware<1.3.3.148
Netgear Routers
NETGEAR R7850 Firmware<1.0.5.84
NETGEAR R7850 firmware
NETGEAR R7900P firmware<1.4.3.88
NETGEAR R7900P firmware
NETGEAR R7960P firmware<1.4.3.88
NETGEAR R7960P firmware
NETGEAR R8000 firmware<1.0.4.84
NETGEAR R8000 firmware
NETGEAR R8000P<1.4.3.88
NETGEAR R8000P firmware
NETGEAR R8500<1.0.2.158
NETGEAR R8500
NETGEAR RAX15 firmware<1.0.10.110
NETGEAR RAX15 firmware
NETGEAR RAX20 firmware<1.0.10.110
NETGEAR RAX20 firmware
NETGEAR RAX200 firmware<1.0.6.138
NETGEAR RAX200 firmware
NETGEAR RAX35 firmware<1.0.10.110
Netgear RAX35=v2
NETGEAR RAX38v2 Firmware<1.0.10.110
NETGEAR RAX38v2 Firmware=v2
NETGEAR RAX40 firmware<1.0.10.110
NETGEAR RAX40 firmware=v2
NETGEAR RAX42<1.0.10.110
NETGEAR RAX42 Firmware
Netgear RAX43<1.0.10.110
Netgear RAX43
NETGEAR RAX45 firmware<1.0.10.110
NETGEAR RAX45 firmware
NETGEAR RAX48<1.0.10.110
NETGEAR RAX48 Firmware
NETGEAR RAX50<1.0.10.110
NETGEAR RAX50
NETGEAR RAX50<1.0.10.110
NETGEAR RAX50
NETGEAR RAX75 firmware<1.0.6.138
NETGEAR RAX75 firmware
NETGEAR RAX80 firmware<1.0.6.138
NETGEAR RAX80 firmware
NETGEAR RS400 firmware<1.5.1.86
NETGEAR RS400 firmware
NETGEAR R7100LG firmware<1.0.0.76
Netgear R7100LG

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-27642?

    CVE-2022-27642 is classified as a critical vulnerability because it allows network-adjacent attackers to bypass authentication on affected NETGEAR routers.

  • How do I fix CVE-2022-27642?

    To mitigate CVE-2022-27642, users should upgrade their NETGEAR R6700v3 firmware to the latest version that addresses this vulnerability.

  • Which devices are affected by CVE-2022-27642?

    CVE-2022-27642 primarily affects NETGEAR R6700v3 routers running firmware version 1.0.4.120_10.0.91 and older.

  • Can CVE-2022-27642 be exploited remotely?

    CVE-2022-27642 can be exploited by attackers who are on the same network segment as the affected routers.

  • Is authentication required to exploit CVE-2022-27642?

    No, authentication is not required to exploit CVE-2022-27642, making it a significant security risk.

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