Zero-Day Advisory

Fortinet Discovers Netgear WLAN Configuration Stack Buffer Overflow in SOAP handler

Summary

Fortinet's FortiGuard Labs has discovered post-authentication buffer overflow vulnerability in Netgear Routers.

Netgear is a global computer networking company based in San Jose, California, in the United States. It produces networking hardware for consumers, businesses, and service providers

Nighthawk X6/X8 suffers stack-based buffer overflow vulnerability that can be triggered when arbitrary wireless SSID is sent to CGI handler and later the said SSID is retrieved via WLANConfiguration SOAP request

Solutions

FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Netgear.NightHawk.CGI.Buffer.Overflow
Released Jul 02, 2018

Apply​ ​the​ ​latest​ ​update​ ​from​ ​the​ ​vendor  

Timeline

Fortinet reported the vulnerability to Netgear on 29, May 2018

Netgear confirmed the vulnerability on 30, May 2018

Netgear released patch for the vulnerability on 05, June 2019

Acknowledgement

This vulnerability was discovered by Wayne Low of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.