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How important is symlink protection?

Discussion in 'Security' started by enginestar, Jul 12, 2017.

  1. enginestar

    enginestar Registered

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    My new hosting company took over my old hosting company.

    Tech support have told me that I don't have symlink protection.
    They said it was never enabled with my previous hosting company.

    To enable, there are complications and I would have to pay extra to have as the current 'experimental' patch or upgrade can't be applied to one of my servers I have.

    Do I really need?

    Thanks.
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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  3. enginestar

    enginestar Registered

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    thanks for the reply
    i spoke with tech support again
    the guy who i spoke to had another look and said he managed to turn it on
    so all is good.

    i looked at the link u gave
    it's still not clear to me the exact dangers of NOT having it turned on
    please do explain - happy to get educated
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hi @enginestar,

    Here's a quote from the grsecurity forums that provides some background information about the attack mechanism:

    Thanks.
     
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  5. quizknows

    quizknows Well-Known Member

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    Basically if you don't have symlink protection, in most cases, one hacked site will result in every other CMS on the server being hacked since apache can read the config files. If is literally critical if you host more than a couple of sites.
     
  6. sparek-3

    sparek-3 Well-Known Member

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    Unless each account applies proper permissions and doesn't leave script config files with world readable permissions.

    World readable permissions on PHP files is really not necessary any longer, unless you are running PHP as DSO.
     
  7. quizknows

    quizknows Well-Known Member

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    You are right, but trusting users to use secure file permissions is the last thing I'll rely on :'D
     
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