Linksys Wireless Routers Have Security Vulnerabilities

Research firm IOActive recently released a an article that revealed some serious security deficiencies on popular Linksys Smart Wi-Fi products.  They have notified Linksys, and Linksys is working on the firmware upgrades that will be necessary to fix these issue, and they have issued a security advisory.

Among the vulnerabilities discovered:

  • Unauthenticated attacker can create a denial-of-service condition by manipulating an API in the firmware.
  • Attackers can bypass authentication for the CGI scrpts, and collect information about the system, including the WPS passcode used to connect to the router.
  • Authenticated attackers can execute commands with root privileges, and create undetectible backdoor accounts

The Linksys advisory recommends that product owners do the following to protect themselves in the interim.

For a list of affected models, see the advisory.

More information:


About the Author:

Cybersecurity analyst, pen-tester, trainer, and speaker. Serving small business owners in the St Paul, Minneapolis, and western Wisconsin area since 2001. Cybersecurity and hacking have been a passion of mine since I entered the computer and networking business in 2000. I hold several cybersecurity certifications including Certified Information Systems Security Professional (CISSP), Certified Advanced Security Pratitioner (CASP), and Certified Ethical Hacker (CEH). Other computer industry certifications include A+, Network+ and Microsoft Certified System Engineer (MCSE). As Cybersecurity Analyst at The WyzCo Group, I help our clients experience high levels of security on their computers, networks, and websites. In addition to consulting on security products and services, we also conduct security audits, vulnerability assessments and full penetration tests. We also work with companies and organizations that need to certify compliance with regulations such as PCI-DSS (credit card processing), HIPAA/HITECH (medical records), and GLBA. We also provide Cybersecurity Awareness Training for clients and their employees. I am a frequent speakers at cybersecurity conferences such as the Minnesota Bloggers Conference, Secure360 Security Conference, the (ISC)2 World Congress, and the ISSA International Conference, and many local community organizations, Chambers of Commerce, SCORE, and several school districts. I have been blogging on cybersecurity since 2008.

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