Several sets of internet communication protocols used by major vendors of connected products have vulnerabilities that could affect millions of devices, researchers revealed on Tuesday. Four of the vulnerabilities are critical, meaning attackers could use them to remotely take over devices ranging from a “smart” refrigerator to an industrial networking switch in the electrical grid, according to the security vendor Forescout. The flaws exist in information technology, operational technology and so-called internet of things products. The Forescout study, dubbed AMNESIA:33, focuses on 33 vulnerabilities in four open-source TCP/IP stacks. TCP/IP stands for “Transmission Control Protocol/Internet Protocol,” which is used to communicate between computers. Open-source TCP/IP stacks serve as the foundational connectivity components of devices around the world. (A TCP/IP stack is an implementation of the TCP/IP protocol.) It marks the second time this year that a set of TCP/IP stack vulnerabilities emerged that could affect a large number of devices. […]
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