If you own a Netgear wireless router, especially the R6200, R6250, R6400, R6700, R6900, R7000, R7100LG, R7300, R7900, R8000, D6220, and D6400 routers and possibly other models are vulnerable to arbitrary command injection. This is a security bug that could allow a remote attacker to access your router. This vulnerability was announced by US-CERT on December 9th, and reported in Naked Security on December 12th.
Vulnerabilities such as this one can allow an attacker to add your router to an IoT botnet, such as the Mirai botnet we saw last year.
It looks like Netgear has prepared the firmware updates you need to fix this issue. If you search Google for “Netgear <model number> firmware update,” of course entering your actual model number in the place where I have written <model number>, you should find what you need, including the instructions.
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About the Author:
I am a cybersecurity and IT instructor, cybersecurity analyst, pen-tester, trainer, and speaker. I am an owner of the WyzCo Group Inc. In addition to consulting on security products and services, I also conduct security audits, compliance audits, vulnerability assessments and penetration tests. I also teach Cybersecurity Awareness Training classes. I work as an information technology and cybersecurity instructor for several training and certification organizations. I have worked in corporate, military, government, and workforce development training environments I am a frequent speaker at professional conferences such as the Minnesota Bloggers Conference, Secure360 Security Conference in 2016, 2017, 2018, 2019, the (ISC)2 World Congress 2016, and the ISSA International Conference 2017, and many local community organizations, including Chambers of Commerce, SCORE, and several school districts. I have been blogging on cybersecurity since 2006 at http://wyzguyscybersecurity.com