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[techradar] 20 ways to break linux - Page 3

post #21 of 34
Quote:
Originally Posted by transhour View Post
sorry didn't mean to target your post out specifically, i just don't care much for "misinformation" without evidence.
That's alright. I freely admit I'm still at the 'very much learning' stage when it comes to all the ins and outs. Better to be corrected than not.

Quote:
Originally Posted by randomizer View Post
If you did that on a Live CD I'm not surprised it didn't ask you for a password.
It was demonstrated to me at work on CentOS (don't know which version), but I have no idea how that system was set up, so perhaps it was a 'setup'... said sysadmin does have a sometimes strange sense of humour.

...

edit:

I believe I was set up. Just tried it myself on a few more distros (ArchBang, CentOS 6.0)...

Sorry folks. Ah well, live and learn...

...

edit 2:

Am currently thinking I got my brain tied in knots.

The issue is that anyone with a 'normal' account can get root access to the shell without knowing the root password (just their own, regardless of the level of knowledge/access they have to the system)... that makes me feel like less of an idiot. See, said I was still learning.
Edited by Paradigm Shifter - 10/13/11 at 4:40am
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post #22 of 34
Reiterating what I said before, if it was a live CD then sudo su will work without a password, because there is no password Of course you can configure sudo to work without a password even if one exists by editing /etc/sudoers (edit using visudo of course). Eg.

Code:
%wheel      ALL=(ALL) NOPASSWD: ALL
All users in the group wheel can now execute all commands with no password.
    
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post #23 of 34
It's full root shell access without a root password - not no password.

*feels stupid*
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post #24 of 34
Meh, it's not fair to pin them all on Linux. Windows would also die under 1, 3, 4, 6, 8, 9, 10, 16, 18 & 20. Ok, 9 isn't technically possible from the Windows GUI, but the others I list have at least an equivalvent under Windows.

Edit: The last sentence cracked me up
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post #25 of 34
Thread Starter 
Quote:
Originally Posted by Paradigm Shifter View Post
It's full root shell access without a root password - not no password.

*feels stupid*
yeah that is the purpose of sudo, to give a privileged user, complete root access or partial root access, that is why is necessary to set it up correctly, so the user can't elevate their permissions (which what happened with the kernel.org debacle).

Quote:
Originally Posted by chemicalfan View Post
Meh, it's not fair to pin them all on Linux. Windows would also die under 1, 3, 4, 6, 8, 9, 10, 16, 18 & 20. Ok, 9 isn't technically possible from the Windows GUI, but the others I list have at least an equivalvent under Windows.

Edit: The last sentence cracked me up
don't think it was meant to "pin" it all on linux, i think all they meant, it was a bunch of noobish mistakes people can make, to soil their linux experience.
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post #26 of 34
Quote:
Originally Posted by transhour View Post
yeah that is the purpose of sudo, to give a privileged user, complete root access or partial root access, that is why is necessary to set it up correctly, so the user can't elevate their permissions (which what happened with the kernel.org debacle).
I thought that was a kernel bug, not an incorrectly set up sudo? If it was sudo, I hope someone got fired for it.
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post #27 of 34
Thread Starter 
Quote:
Originally Posted by chemicalfan View Post
I thought that was a kernel bug, not an incorrectly set up sudo? If it was sudo, I hope someone got fired for it.
oh...i guess i didn't make it clear, i was just using that as an example what happens when some one can escalate their user privileges on a system, which can happen if a sudo is non-setup correctly. as for the kernel.org attack, i think it was a vulnerability that was in ssh.
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post #28 of 34
I get you now
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post #29 of 34
I hope they realize much of what is written in there applies for many operating systems.

"Run out of memory and the system slows down a lot". No kidding?
"Run out of hard drive space and the system slows down a lot". No kidding?
#4, #5, #6, #7 and #15 fall under the "Treat it like windows" category.
#8, #9, #11 is personal preference and experimentation. If you don't know what you're messing with you will break things. (from trying to mend cars to cleaning carpets)
#18, #20 are filler points.
#14 is mistreating the system like you could do with any OS that is not properly set up / maintained. One could also say "use all the CPU and there will be no proccessing power left for other users". orly?

And last but not least! #10 "Lose the password for an encrypted filesystem". Whose fault is it if you encrypt EVERYTHING you have and then forget the password?

Linux is not an OS that pampers people.
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post #30 of 34
Kinda agree with #6, my Kubuntu broke last time I update it (about 200+ update), it just hang on an update, after a hard reboot it just don't work like it should anymore.
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