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Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!

 
Anonymous Coward
User ID: 72798048
India
08/19/2016 07:27 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
and good too ?
Anonymous Coward
User ID: 40854418
United States
08/19/2016 07:28 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
and good too ?
 Quoting: Anonymous Coward 72798048


It's good. I didn't know about and my FC22 machines were vulnerable.
Anonymous Coward
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08/19/2016 07:28 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
[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)]
 Quoting: Holy cow 72796598


I'm beginning to think that the ultimate answer to avoiding all of this spying bullshit is fpr people to simply discard all personal computers and smart phones, and just use landlines. If you need to use a computer, go to an Internet cafe. If you need to do banking, visit the local branch.
 Quoting: Anonymous Coward 72792361


A better idea would be to keep two computers , one without internet and one with internet .. no internet no hacking, unless someone is physically going to plant something in your machine !!
 Quoting: Anonymous Coward 72798048


Not all of us use personal computers just for the internet and microsoft word ..
The Comedian :D

User ID: 48223816
United States
08/19/2016 07:31 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
Dangerous OS Flaws:

Linux: 1
OSX: 3
Windows: 567,673
 Quoting: The Comedian :D


hesright

...and fuck windows and fuck anyone promoting that shitbox of an OS.
 Quoting: Devoted Follower 72702268


Windows hasn't been an OS since 7.

It's now malware that people pay to install.
Saint Comedian, Patron Saint of Bringing the Butthurt to Dipshits

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Anonymous Coward
User ID: 72804421
United States
08/19/2016 07:35 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
Well, good news is now this will be patched in short order - if not already by the time you read this post.

Windows users foaming at the mouth about this are engaged in meaningless mental masturbation.

Enjoy your swiss cheese.
Anonymous Coward
User ID: 72821426
Finland
08/19/2016 07:47 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
Well, good news is now this will be patched in short order - if not already by the time you read this post.

Windows users foaming at the mouth about this are engaged in meaningless mental masturbation.

Enjoy your swiss cheese.
 Quoting: Anonymous Coward 72804421


I think it was patched about 3 weeks ago.
Anonymous Coward
User ID: 72804421
United States
08/19/2016 07:55 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
Well, good news is now this will be patched in short order - if not already by the time you read this post.

Windows users foaming at the mouth about this are engaged in meaningless mental masturbation.

Enjoy your swiss cheese.
 Quoting: Anonymous Coward 72804421


I think it was patched about 3 weeks ago.
 Quoting: Anonymous Coward 72821426


Thanks :D
Anonymous Coward
User ID: 72826383
Ireland
08/20/2016 03:41 AM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
[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)]
 Quoting: Holy cow 72796598

Uhm , linux is fully open source, how did someone miss the fucked coding?

with all the programmers working on the kernel and different distros, i find this fucking unreal, just when you think your safe using linux.......
 Quoting: Anonymous Coward 2649925


linux != security
Sleeping One
User ID: 72845165
Belgium
08/23/2016 07:26 AM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
How do you fix it?
 Quoting: Anonymous Coward 69440459


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.
 Quoting: Anonymous Coward 71558537

This solution is only for Ubuntu AFAIK.

That Chinese researcher (Zhian ?) must have other methods for other Linux distros.
Anonymous Coward
User ID: 72845112
Australia
08/23/2016 07:52 AM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
Android users will be the hardest hit by this, no updates for older phones. In the bin they go.

Desktop linux systems will just update to the latest kernel.
 Quoting: Anonymous Coward 72748728


Rubbish, Android users can just update the kernel as well but they have to do it themselves. Just like desktop users!
I bet iOS users are the last to get patched and then Apple shall fuck it up as usual..
Anonymous Coward
User ID: 72845112
Australia
08/23/2016 07:54 AM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
btw Linux is a kernel ;)
Sleeping One
User ID: 72910962
Belgium
09/02/2016 06:38 PM
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Re: Linux flaw allows hackers to hijack your internet communications - unpatched since 2012!
The part I put in bold previously made you sound like a Windows user trying to bash (no pun intended) Linux because of a vulnerability.
 Quoting: Anonymous Coward 72784901

I am a Windows user and I am bashing Linux because it's laughable that this vulnerability has been unpatched since 2012.

"Linux is secure" they said.
 Quoting: Anonymous Coward 72796598


Okay dear Windoze user, let's compare.

Windows XP, was released on August 24, 2001. Security flaws that affect all versions ox XP were still being found and fixed right up until extended support ended on April 8, 2014.
That means certain vulnerabilities were just sitting there for over 12 years!!!!!

Of course support for XP has ended, so no more fixes coming down the pipe, but, many of the vulnerabilities found (and fixed) in later windows versions are also present in XP, to be ignored forever by Microsoft.

So I guess 4 years for a Linux bug isn't so bad, not to mention that the fix will be back-ported to all affected Linux versions.

Enjoy your Windoze, it's good for you!
 Quoting: Anonymous Coward 72748728

Your post makes a lot of sense, but comparing Windows with Linux is not the point.

Linux was supposed to be secure while Windows is not, they always were telling you this when you were hesitating : that's the point !

And now proof has been given it is NOT !





GLP