Recent News - ESET Research: How Amazon Echo and Kindle got KRACKed


2019-10-17

BRATISLAVA - ESET Smart Home Research Team recently discovered that the popular Amazon Echo – the original hardware of Amazon Alexa – was open to a number of the ten Key Reinstallation Attack (KRACK) vulnerabilities. This was also the case for at least one generation of the Amazon’s widely used Kindle e-readers. Identified flaws were reported to, and subsequently patched by, Amazon’s security team.

In 2017, two Belgian researchers, Mathy Vanhoef and Frank Piessens found serious weaknesses in the WPA2 standard, a protocol that at that time was securing virtually all modern Wi-Fi networks. KRACK attacks were mostly aimed against the four-way handshake – a mechanism used for two purposes: confirming that both the client and access point possess the correct credentials, and negotiation of the key used for encryption of the traffic. Even now, two years later, many Wi-Fi enabled devices are still vulnerable to KRACK attacks.

“In recent years, hundreds of millions of homes have become smarter and internet-enabled via one of the many popular home assistant devices available on the market. Despite the efforts of some vendors to develop these devices with security in mind, these often remain vulnerable,” says ESET researcher Miloš Čermák. “We identified multiple flaws in at least three Amazon devices, which could have posed a far-reaching security risk due to the numbers in which they have been sold,” explains Čermák.

The Echo 1st generation and Amazon Kindle 8th generation devices were found to be vulnerable to two KRACK vulnerabilities. These vulnerabilities are quite severe as they allow an attacker to: execute a DoS attack; decrypt any data or information transmited by the victim; forge data packets, cause the device to dismiss packets or even inject new packets; intercept sensitive information such as passwords or session cookies.

“It should be noted that KRACK attacks – similar to any other attack against Wi-Fi networks – require close proximity to be effective,” adds Miloš Čermák.

ESET reported all identified vulnerabilities in Echo and Kindle, and assisted Amazon’s security team while they fixed the issues.

For more details, read the blogpost “What was wrong with Alexa? How Amazon Echo and Kindle got KRACKed.” Make sure to follow ESET research on Twitter for the latest news.
 



About Version 2 Limited
 

Version 2 Limited is one of the most dynamic IT companies in Asia. The company develops and distributes IT products for Internet and IP-based networks, including communication systems, Internet software, security, network, and media products. Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 Limited offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About ESET

For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

Previous News Next News

Return to the previous page