Netgear R8500/R7000P/XR300 HTTP POST Request ap_mode.cgi apmode_dns1_pri/apmode_dns1_sec stack-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in Netgear R8500, R7000P and XR300. This affects an unknown function of the file ap_mode.cgi of the component HTTP POST Request Handler. This manipulation of the argument apmode_dns1_pri/apmode_dns1_sec causes stack-based overflow. The identification of this vulnerability is CVE-2024-51003. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Netgear R8500, R7000P and XR300 (affected version not known). Affected by this vulnerability is some unknown functionality of the file ap_mode.cgi of the component HTTP POST Request Handler. The manipulation of the argument apmode_dns1_pri/apmode_dns1_sec with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. The summary by CVE is:

Netgear R8500 v1.0.2.160, XR300 v1.0.3.78, R7000P v1.3.3.154, and R6400 v2 1.0.4.128 were discovered to multiple stack overflow vulnerabilities in the component ap_mode.cgi via the apmode_dns1_pri and apmode_dns1_sec parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted POST request.

It is possible to read the advisory at netgear.com. This vulnerability is known as CVE-2024-51003 since 10/28/2024. The exploitation appears to be easy. The attack can be launched remotely. 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 11/05/2024).

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

• R7000P
• R8500
• XR300

License

• commercial

Website

• Vendor: https://www.netgear.com/

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