Netgear WNR854T 1.5.2 UPNP Service addmap_exec NewInternalClient command injection

Summaryinfo

A vulnerability marked as critical has been reported in Netgear WNR854T 1.5.2. The impacted element is the function addmap_exec of the component UPNP Service. The manipulation of the argument NewInternalClient leads to command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2024-54807. There is no available exploit.

Detailsinfo

A vulnerability was found in Netgear WNR854T 1.5.2 and classified as critical. This issue affects the function addmap_exec of the component UPNP Service. The manipulation of the argument NewInternalClient with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Netgear WNR854T 1.5.2 (North America), the UPNP service is vulnerable to command injection in the function addmap_exec which parses the NewInternalClient parameter of the AddPortMapping SOAPAction into a system call without sanitation. An attacker can send a specially crafted SOAPAction request for AddPortMapping via the router's WANIPConn1 service to achieve arbitrary command execution.

It is possible to read the advisory at faultpoint.com. The identification of this vulnerability is CVE-2024-54807 since 12/06/2024. The exploitation is known to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/17/2025). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Wireless LAN Software

Vendor

• Netgear

Name

• WNR854T

Version

• 1.5.2

License

• commercial

Support

• end of life

Website

• Vendor: https://www.netgear.com/

CPE 2.3info

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• 🔍

CPE 2.2info

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• 🔍

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