Advisory Details

June 30th, 2023

NETGEAR Multiple Routers curl_post Improper Certificate Validation Remote Code Execution Vulnerability

CVE ID	CVE-2023-35721
CVSS SCORE	8.1, AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	NETGEAR
AFFECTED PRODUCTS	Multiple Routers
VULNERABILITY DETAILS	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.
ADDITIONAL DETAILS	NETGEAR has issued an update to correct this vulnerability. More details can be found at: https://kb.netgear.com/000065668/Security-Advisory-for-Improper-Remote-Server-Certificate-Validation-on-the-RAX50-PSV-2023-0019
DISCLOSURE TIMELINE	2023-01-26 - Vulnerability reported to vendor 2023-06-30 - Coordinated public release of advisory
CREDIT	Zach Hanley (@hacks_zach) of Horizon3 A.I.

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