Linux: Read /etc/default/useradd (KB)

# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.150135");
  script_version("2020-07-29T11:15:13+0000");
  script_tag(name:"last_modification", value:"2020-07-29 11:15:13 +0000 (Wed, 29 Jul 2020)");
  script_tag(name:"creation_date", value:"2020-02-18 15:18:51 +0000 (Tue, 18 Feb 2020)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:N/I:N/A:N");
  script_tag(name:"qod", value:"97");

  script_name("Linux: Read /etc/default/useradd (KB)");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Policy");
  script_dependencies("gather-package-list.nasl", "compliance_tests.nasl");
  script_mandatory_keys("Compliance/Launch");
  script_exclude_keys("ssh/no_linux_shell");

  script_xref(name:"URL", value:"https://linux.die.net/man/8/useradd");

  script_tag(name:"summary", value:"useradd command creates a new user account using the values
specified on the command line plus the default values from the system. Depending on command line
options, the useradd command will update system files and may also create the new user's home
directory and copy initial files.

The file /etc/default/useradd stores default values for account creation.

Note: This script only stores information for other Policy Controls.");

  exit(0);
}

include("ssh_func.inc");
include("policy_functions.inc");

file = "/etc/default/useradd";

if(!get_kb_item("login/SSH/success") || !sock = ssh_login_or_reuse_connection()){
  set_kb_item(name:"Policy/linux/" + file + "/ERROR", value:TRUE);
  set_kb_item(name:"Policy/linux/" + file + "/stat/ERROR", value:TRUE);
  exit(0);
}

policy_linux_stat_file(socket:sock, file:file);
policy_linux_file_content(socket:sock, file:file);

exit(0);