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Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:Anonymous Coward 71558537:MV8zMjYzMTA2XzU4MzgyMDM3XzNBMEU1NTI4] [quote:Anonymous Coward 69440459:MV8zMjYzMTA2XzU4MzgxNzQ4X0YyMEE2NzE1] How do you fix it? [/quote] edit /etc/syscrl.conf insert a line net.ipv4.tcp_challenge_ack_limit = 999999999 save it run sudo sysctl-p to update the configuration. see not the end of the world and you dont't have to wait for a patch. but dunno about android phones. [/quote]
Original Message
[
link to ucrtoday.ucr.edu (secure)
]
Researchers at the University of California, Riverside have identified a weakness in the Transmission Control Protocol (TCP) of all Linux operating systems since late 2012 that enables attackers to hijack users' internet communications remotely.
Such a weakness could be used to launch targeted attacks that track users' online activity, forcibly terminate a communication, hijack a conversation between hosts or degrade the privacy guarantee by anonymity networks such as Tor.
The UCR researchers ... identified a subtle flaw (in the form of 'side channels') in the Linux software that enables attackers to infer the TCP sequence numbers associated with a particular connection with no more information than the IP address of the communicating parties.
Affects Android too! Unpatched since 2012! Linux is safe, don't worry about security, they said!
The researchers have a short video demonstrating the attack :
[
link to www.youtube.com (secure)
]
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