Netgear RAX30 DHCP Server command injection

Summaryinfo

A vulnerability identified as critical has been detected in Netgear RAX30. This affects an unknown part of the component DHCP Server. Performing a manipulation results in command injection. This vulnerability is known as CVE-2023-40480. Access to the local network is required for this attack. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Netgear RAX30 (Wireless LAN Software) (affected version not known). This affects some unknown functionality of the component DHCP Server. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

NETGEAR RAX30 DHCP Server Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DHCP server. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19705.

The weakness was published 08/23/2023 as ZDI-23-1162. It is possible to read the advisory at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2023-40480 since 08/14/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/03/2025). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at kb.netgear.com.

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Productinfo

Type

• Wireless LAN Software

Vendor

• Netgear

Name

• RAX30

License

• commercial

Website

• Vendor: https://www.netgear.com/

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