Check the System if Opie-Server and Opie-Client installed

###############################################################################
# OpenVAS Vulnerability Test
# $Id: GSHB_SSH_Opie.nasl 7076 2017-09-07 11:53:47Z teissa $
#
# Check the System if Opie-Server and Opie-Client installed
#
# Authors:
# Thomas Rotter <[email protected]>
#
# Copyright:
# Copyright (c) 2010 Greenbone Networks GmbH, http://www.greenbone.net
#
#
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
###############################################################################

tag_summary = "Check the System if Opie-Server and Opie-Client installed.
  
  Read /etc/pam.d/opie, List Files und /etc/pam.d/ with -include opie- entry,
  Read ChallengeResponseAuthentication entry in /etc/ssh/sshd_config";

if(description)
{
  script_id(96097);
  script_version("$Revision: 7076 $");
  script_tag(name:"last_modification", value:"$Date: 2017-09-07 13:53:47 +0200 (Thu, 07 Sep 2017) $");
  script_tag(name:"creation_date", value:"2010-06-02 09:25:45 +0200 (Wed, 02 Jun 2010)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_tag(name:"qod_type", value:"package");  
  script_name("Check the System if Opie-Server and Opie-Client installed");

  desc = "
  Summary:
  " + tag_summary;

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2010 Greenbone Networks GmbH");
  script_family("IT-Grundschutz");
  script_mandatory_keys("Compliance/Launch/GSHB");
  script_dependencies("find_service.nasl", "ssh_authorization.nasl", "gather-package-list.nasl");
  script_tag(name : "summary" , value : tag_summary);
  exit(0);
}

cmdline = 0;
include("ssh_func.inc");

port = get_preference("auth_port_ssh");
if(!port) port = get_kb_item("Services/ssh");
if(!port) {
    port = 22;
}
sock = ssh_login_or_reuse_connection();
if(!sock) {
    error = get_ssh_error();
    if (!error) error = "No SSH Port or Connection!";
    log_message(port:port, data:error);
    set_kb_item(name: "GSHB/OPIE/SERVICES", value:"error");
    set_kb_item(name: "GSHB/OPIE/PAM", value:"error");
    set_kb_item(name: "GSHB/OPIE/SSH", value:"error");
    set_kb_item(name: "GSHB/OPIE/SERVER", value:"error");
    set_kb_item(name: "GSHB/OPIE/CLIENT", value:"error");
    set_kb_item(name: "GSHB/OPIE/log", value:error);
    exit(0);
}


SAMBA = get_kb_item("SMB/samba");
SSHUNAME = get_kb_item("ssh/login/uname");

if (SAMBA || (SSHUNAME && ("command not found" >!< SSHUNAME && "CYGWIN" >!< SSHUNAME))){
  rpms = get_kb_item("ssh/login/packages");

  if (rpms){
    pkg1 = "opie-server";
    pkg2 = "opie-client";

    pat1 = string("ii  (", pkg1, ") +([0-9]:)?([^ ]+)");
    pat2 = string("ii  (", pkg2, ") +([0-9]:)?([^ ]+)");
    desc1 = eregmatch(pattern:pat1, string:rpms);
    desc2 = eregmatch(pattern:pat2, string:rpms);
  }else{
  
    rpms = get_kb_item("ssh/login/rpms");
    
    tmp = split(rpms, keep:0);
  
    if (max_index(tmp) <= 1)rpms = ereg_replace(string:rpms, pattern:";", replace:'\n');

    pkg1 = "opie-server";
    pkg2 = "opie-client";
    pkg3 = "opie~";

    pat1 = string("(", pkg1, ")~([0-9/.]+)~([0-9a-zA-Z/.-_]+)");
    pat2 = string("(", pkg2, ")~([0-9/.]+)~([0-9a-zA-Z/.-_]+)");
    pat3 = string("(", pkg3, ")([0-9/.]+)~([0-9a-zA-Z/.-_]+)");
    desc1 = eregmatch(pattern:pat1, string:rpms);
    desc2 = eregmatch(pattern:pat2, string:rpms);
    desc3 = eregmatch(pattern:pat3, string:rpms);    
  }

  if (desc1 || desc3) OPIESERVER = "yes";
  else OPIESERVER = "no";
  if (desc2 || desc3) OPIECLIENT = "yes";
  else OPIECLIENT = "no";
  if (OPIESERVER == "yes" && OPIECLIENT == "yes") pam_opie = ssh_cmd(socket:sock, cmd:"cat /etc/pam.d/opie");
  else pam_opie = "noopie";
  if (OPIESERVER == "yes" && OPIECLIENT == "yes") services_opie = ssh_cmd(socket:sock, cmd:'grep "include opie" /etc/pam.d/*');
  else services_opie = "noopie";
  if (OPIESERVER == "yes" && OPIECLIENT == "yes") ssh_opie = ssh_cmd(socket:sock, cmd:'grep "ChallengeResponseAuthentication" /etc/ssh/sshd_config');
  else ssh_opie = "noopie";

  if ("cat: command not found" >< pam_opie) pam_opie = "nocat";
  if (pam_opie =~ ".*Keine Berechtigung.*" ||  pam_opie =~ ".*Permission denied.*") pam_opie = "norights";
  if ("cat: /etc/pam.d/opie" >< pam_opie)  pam_opie = "nopamopie";
  if (pam_opie == "") pam_opie = "empty";
  if ("grep: command not found" >< services_opie) services_opie = "nogrep";
  if (services_opie =~ ".*Keine Berechtigung.*" ||  services_opie =~ ".*Permission denied.*") services_opie = "norights";
  if (services_opie == "") services_opie = "empty";
  if ("grep: command not found" >< ssh_opie) ssh_opie = "nogrep";
  if (ssh_opie =~ ".*Keine Berechtigung.*" ||  ssh_opie =~ ".*Permission denied.*") ssh_opie = "norights";
  if (ssh_opie == "") ssh_opie = "empty";
}  
else{
  OPIESERVER = "windows";
  OPIECLIENT = "windows";  
}

set_kb_item(name: "GSHB/OPIE/SERVICES", value:services_opie);
set_kb_item(name: "GSHB/OPIE/PAM", value:pam_opie);
set_kb_item(name: "GSHB/OPIE/SSH", value:ssh_opie);
set_kb_item(name: "GSHB/OPIE/CLIENT", value:OPIECLIENT);
set_kb_item(name: "GSHB/OPIE/SERVER", value:OPIESERVER);
  
exit(0);