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In Progress [CPANEL-26633] cPHulk is one-day blocking whitelisted address for maximum failed authentications

Discussion in 'Security' started by rahnev, Mar 26, 2019.

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  1. rahnev

    rahnev Well-Known Member

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    I have the following problem:
    - server ip added to whitelist in cPHulk
    - even though cPHulk blocked the IP for one day in iptables

    Here is a log entry:

    [2019-03-26 07:45:42 +0100] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[1.1.1.1] [Local Port]=[143] [Remote IP Address]=[2.2.2.2] [Remote Port]=[34169] [Authentication Database]=[mail] [Username]=[info@domain.com] (30/30 failures) (blocked until [Wed Mar 27 06:45:42 2019 UTC/Wed Mar 27 07:45:42 2019 LOCAL])

    How this is possible. Is there a way to understand why cPHulk blocked a whitelited IP?

    Have a nice day.
     
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

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    Hello @rahnev,

    Can you confirm if the whitelisted IP address continues to appear in WHM >> cPHulk Brute Force Protection >> Whitelist Management? Or, was it automatically removed from the whitelist?

    Thank you.
     
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  3. rahnev

    rahnev Well-Known Member

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    Hi @cPanelMichael,

    yes the whitelisted IP continues to appear in WHM >> cPHulk Brute Force Protection >> Whitelist Management.
     
  4. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

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    Hello @rahnev,

    Can you open a support ticket so we can take a closer look at the system to see why cPHulk isn't respecting the whitelisted IP address? You can post the ticket number here and we'll link this thread to it.

    Thank you.
     
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  5. rahnev

    rahnev Well-Known Member

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    Hi @cPanelMichael,

    I opened a support ticket.
    Your support request ID: 11791183

    Thanks.
     
  6. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

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    Hello @rahnev,

    Thank you for opening the support ticket. Internal case CPANEL-26633 was opened to report an issue where cPHulk adds one-day blocks when whitelisted IP addresses reach the maximum number of authentication failures. I'll monitor this case and update this thread with more information as it becomes available.

    Thank you.
     
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