CVE-2023-35721

NETGEAR Multiple Routers curl_post Improper Certificate Validation Remote Code Execution Vulnerability

Description

NETGEAR Multiple Routers curl_post Improper Certificate Validation Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the update functionality, which operates over HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19981.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
EPSS 5.57% Top 15%
Vendor Advisory netgear.com
Affected: NETGEAR Multiple Routers
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-23-893/ third party advisory
https://kb.netgear.com/000065668/Security-Advisory-for-Improper-Remote-Server-Certificate-Validation-on-the-RAX50-PSV-2023-0019 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-35721?
CVE-2023-35721 has been scored as a high severity vulnerability.
How to fix CVE-2023-35721?
To fix CVE-2023-35721, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-35721 being actively exploited in the wild?
It is possible that CVE-2023-35721 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-35721?
CVE-2023-35721 affects NETGEAR Multiple Routers.
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