Firmware Flaw Allows Attackers to Evade Security on Some Home Routers

guest · Jun 22, 2020

Firmware Flaw Allows Attackers to Evade Security on Some Home Routers
June 22, 2020
https://www.darkreading.com/vulnera...-security-on-some-home-routers/d/d-id/1338150

Wired and wireless routers used by "millions" of home and small-business users are vulnerable to a firmware attack that can downgrade the devices to a less secure version that then allows the devices to be further compromised, cybersecurity firm NanoLock Security announced on Monday.

The company decided to disclose the vulnerabilities because millions are potentially at risk, and Buffalo has not committed to issuing an update for the issue, says Yoni Kahana, vice president of business development for NanoLock Security.

"Unfortunately, at this time, users cannot do anything to protect themselves, and the Buffalo routers — as well as millions of others with this similar vulnerability — remain unsecure," he says. "The only thing that can reduce the risk of attack is to ensure that if they upgrade their router, it is with a higher version."
These routers have become even more important to businesses as many employees continue to work from home, NanoLock stated in its advisory.
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The company argued that disclosing the issue is in the interest of digital security. The vulnerability could "be a way to plant a zero-day attack code," Kahana says. "NanoLock is revealing this hack today to further emphasize to the infosec community that routers are vulnerable and that there are potentially millions at risk."
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NanoLock: NanoLock Uncovers Critical Security Vulnerability in Buffalo Connected Router

On June 22 at InfoSecWorld 2020 Digital, NanoLock announced that a new hack has been discovered in a Buffalo Router (V 2.46) from Buffalo, a global provider of networking, storage, and multimedia solutions for the home and small businesses.

In 2019, NanoLock met with Buffalo’s R&D team to demonstrate the hack on their router, exposing how hackers use web admin to downgrade the router from the secured version (V 2.46) to V 2.34 and then use telnet access to hack the firmware. This hack is particularly volatile, as the V 2.46 contains a security patch that is supposed to address the vulnerabilities present in V 2.34.
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Firmware Flaw Allows Attackers to Evade Security on Some Home Routers

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