Xpdf Version Detection

# Copyright (C) 2009 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("1.3.6.1.4.1.25623.1.0.900466");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_version("2021-09-01T14:04:04+0000");
  script_tag(name:"last_modification", value:"2021-09-01 14:04:04 +0000 (Wed, 01 Sep 2021)");
  script_tag(name:"creation_date", value:"2009-05-06 08:04:28 +0200 (Wed, 06 May 2009)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Xpdf Version Detection");

  script_tag(name:"vuldetect", value:"The script logs in via ssh, searches for executable 'xpdf' and
  queries the found executables via command line option '-v'.");
  script_tag(name:"summary", value:"The PDF viewer Xpdf is installed and its version is detected.");
  script_tag(name:"affected", value:"Xpdf on Linux.");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone Networks GmbH");
  script_family("Product detection");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("login/SSH/success");
  script_exclude_keys("ssh/no_linux_shell");

  exit(0);
}

include("ssh_func.inc");
include("cpe.inc");
include("host_details.inc");

sock = ssh_login_or_reuse_connection();
if(!sock)
  exit(0);

xpdfPaths = ssh_find_file(file_name:"/xpdf$", useregex:TRUE, sock:sock);
foreach executableFile (xpdfPaths)
{
  executableFile = chomp(executableFile);
  if(!executableFile)
    continue;

  xpdfVer = ssh_get_bin_version(full_prog_name:executableFile, sock:sock, version_argv:"-v", ver_pattern:"xpdf version ([0-9]\.[0-9]+([a-z]?))");
  if(xpdfVer[1] != NULL)
  {
    set_kb_item(name:"Xpdf/Linux/Ver", value:xpdfVer[1]);

    cpe = build_cpe(value:xpdfVer[1], exp:"^([0-9.]+([a-z0-9]+)?)", base:"cpe:/a:foolabs:xpdf:");
    if(!isnull(cpe))
      register_product(cpe:cpe, location:executableFile);

    log_message(data:'Detected Xpdf version: ' + xpdfVer[1] +
        '\nLocation: ' + executableFile +
        '\nCPE: '+ cpe +
        '\n\nConcluded from version identification result:\n' + xpdfVer[max_index(xpdfVer)-1]);
  }
}

ssh_close_connection();