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Date:      Wed, 27 Jan 2021 16:28:30 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 253049] security/cyrus-sasl2-saslauthd: allow runing as unprivileged user
Message-ID:  <bug-253049-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253049

            Bug ID: 253049
           Summary: security/cyrus-sasl2-saslauthd: allow runing as
                    unprivileged user
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ume@FreeBSD.org
          Reporter: ml@netfence.it
             Flags: maintainer-feedback?(ume@FreeBSD.org)
          Assignee: ume@FreeBSD.org

Created attachment 221966
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D221966&action=
=3Dedit
SVN patch

Quoting saslauthd manual, "When running against a protected authentication
database (e.g. the shadow mechanism), it must be run as the superuser.
Otherwise it is recommended to run daemon unprivileged as saslauth:saslauth=
".

However, the port RC script does not allow this and always starts the daemo=
n as
root.

The attached patch allows running as a different user, by setting
"saslauthd_user" in /etc/rc.conf (or equivalent).

Notice:
_ to comply with POLA, the default user is still root, so everything works =
as
before unless config is explicitly changed;
_ the port creates /var/run/saslauthd owned by cyrus:mail, so the only sens=
ible
choice is "saslauthd_user=3Dcyrus", unless those permissions are changed.

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