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CVE-2022-27642

HIGHCVSS 8.8/10EPSS 0.87%

Last modified

CVE-2022-27642 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.87% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.87%

54.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetgearCax80 Firmware< 2.1.3.7
NetgearLax20 Firmware< 1.1.6.34
NetgearMr60 Firmware< 1.1.6.124
NetgearMr80 Firmware< 1.1.6.14
NetgearMs60 Firmware< 1.1.6.124
NetgearMs80 Firmware< 1.1.6.14
NetgearR6400 Firmware< 1.0.1.78
NetgearR6400 Firmware< 1.0.4.126
NetgearR6700 Firmware< 1.0.4.126
NetgearR6900p Firmware< 1.3.3.148
NetgearR7000 Firmware< 1.0.11.134
NetgearR7000p Firmware< 1.3.3.148
NetgearR7850 Firmware< 1.0.5.84
NetgearR7900p Firmware< 1.4.3.88
NetgearR7960p Firmware< 1.4.3.88
NetgearR8000 Firmware< 1.0.4.84
NetgearR8000p Firmware< 1.4.3.88
NetgearR8500 Firmware< 1.0.2.158
NetgearRax15 Firmware< 1.0.10.110
NetgearRax20 Firmware< 1.0.10.110
NetgearRax200 Firmware< 1.0.6.138
NetgearRax35 Firmware< 1.0.10.110
NetgearRax38 Firmware< 1.0.10.110
NetgearRax40 Firmware< 1.0.10.110
NetgearRax42 Firmware< 1.0.10.110
NetgearRax43 Firmware< 1.0.10.110
NetgearRax45 Firmware< 1.0.10.110
NetgearRax48 Firmware< 1.0.10.110
NetgearRax50 Firmware< 1.0.10.110
NetgearRax50s Firmware< 1.0.10.110
NetgearRax75 Firmware< 1.0.6.138
NetgearRax80 Firmware< 1.0.6.138
NetgearRs400 Firmware< 1.5.1.86
NetgearR7100lg Firmware< 1.0.0.76

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-27642?
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.
How severe is CVE-2022-27642?
CVE-2022-27642 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.
How do I fix CVE-2022-27642?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-27642?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST