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Changing permissions on WHM addon modules

Discussion in 'cPanel Developers' started by internetfab, May 26, 2011.

  1. internetfab

    internetfab Well-Known Member

    Feb 20, 2003
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    Gothenburg, Sweden
    cPanel Access Level:
    DataCenter Provider

    Tried changing permission on munin addon, so that reseller (managed server, where owner has reseller privs and we have root) may be able to see stats.

    # cpanel - addon_munin.cgi                        Copyright(c) 2011 cPanel, Inc.
    #                                                           All rights Reserved.
    # This code is subject to the cPanel license. Unauthorized copying is prohibited
    #WHMADDON:munin:Munin Service Monitor
    BEGIN { unshift @INC, '/usr/local/cpanel'; }
    my $security_token = $ENV{'cp_security_token'} || '';
    print "Location: $security_token/munin/index.html\r\n\r\n";
    Shouldn't this work out of the box? What am I missing?

    Getting "Sorry, only root may view munin stats." when visiting /munin/index.html as a reseller.
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  2. cPanelDavidN

    cPanelDavidN Integration Developer

    Dec 17, 2009
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    Houston, TX
    cPanel Access Level:
    Root Administrator
    Hi internetfab,

    You're not missing anything. If you remove
    the plugin link will appear in the left sidebar

    and remove
    if ( !Whostmgr::ACLS::hasroot() ) {
        print "Content-type: text/html\r\n\r\n";
        print "Access Denied: You do not have permission to view Munin stats.\n";
    the plugin cgi script will continue and load the munin/index.html

    ...However, after some research, it would appear that there is a hardcoded check for munin served pages in the binaries. A reseller must have the "all root" privilege in order to clear the check. I imagine the check is done simply, if not specifically, to stop information disclosure.

    The only way around the issue would be (I presume) if you mutated the munin plugin files/dir such that all references to munin were removed from the file/dir names; ie `mv docroot/munin docroot/moonin` or something like that. I cannot recommend doing this, but if you HAD to, that would be the first thing to try.

    Best Regards,
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