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810 posts

Ultimate Geek
+1 received by user: 230

Topic # 225660 29-Nov-2017 10:22
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So it looks like a glaring and brutal flaw has been exposed in High Sierra which allows root access with a blank password.




Anyone running High Sierra should address this ASAP to secure their Apple computer...


Someone will be getting fired for this one surely!


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752 posts

Ultimate Geek
+1 received by user: 132


  Reply # 1909392 29-Nov-2017 10:24
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Just tried it on my MacBook. Works as intended.


FileVault should mitigate this partially if the machine is off, but still not good. I'd imagine actually setting a password on the root account would also solve this (but my work machine is still on 10.12 so can't confirm).


74 posts

Master Geek
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  Reply # 1909393 29-Nov-2017 10:25
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Yeah this is a big one. Hopefully patched quickly. 


Haven't upgraded to HS yet because the new file system doesn't support Fusion Drives yet.


Guess it's good I waited.

74 posts

Master Geek
+1 received by user: 20

  Reply # 1909394 29-Nov-2017 10:26
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As a side note, does anyone know if this vulnerability can be exploited by an application? I think to be safe, I'd advise holding off installing or upgrading *anything* until it is patched.

74 posts

Master Geek
+1 received by user: 20

  Reply # 1909466 29-Nov-2017 11:53
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Just as a follow up, some are recommending setting a 'root' password as an interim measure. Although the argument is that this is actually less secure as there should be no root account at all.



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