ManageEngine ServiceDesk Plus < 11.2 Build 11205 RCE

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(151286);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/11");

  script_cve_id("CVE-2021-20081");
  script_xref(name:"TRA", value:"TRA-2021-22");

  script_name(english:"ManageEngine ServiceDesk Plus < 11.2 Build 11205 RCE");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts an application that is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"A command injection vulnerability exists in ManageEngine ServiceDesk Plus < 11.2 Build 11205 due to insufficient
sanitisation of user supplied input. An authenticated, remote attacker can exploit this to execute arbitrary
commands with SYSTEM privileges.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version   
number.");
  # https://www.manageengine.com/products/service-desk/on-premises/readme.html#11205
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2bb6c617");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ManageEngine ServiceDesk Plus version 11.2 build 11205 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20081");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/02");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:manageengine:servicedesk_plus");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("manageengine_servicedesk_detect.nasl");
  script_require_keys("installed_sw/manageengine_servicedesk");
  script_require_ports("Services/www", 8080);

  exit(0);
}

include('install_func.inc');
include('url_func.inc');
include('http.inc');

var appname = 'manageengine_servicedesk';
var display_name = 'ManageEngine ServiceDesk';

get_install_count(app_name:appname, exit_if_zero:TRUE);
var port = get_http_port(default:8080);

var install = get_single_install(app_name:appname, port:port, exit_if_unknown_ver:TRUE);

var version = install['version'];
var product = install['Product'];

if ('MSP' >< product)
  audit(AUDIT_INST_VER_NOT_VULN, product);

var build = pregmatch(string:version, pattern:"([0-9\.]+) Build ([0-9]+)");
if(empty_or_null(build)) audit(AUDIT_VER_NOT_GRANULAR, display_name, version);

var url = build_url(port:port, qs:install['path']);
var compare_version = build[1] + '.' + build[2];
if (ver_compare(ver:compare_version, fix:"11.2.11205", strict:FALSE) < 0)
{
  var report =
    '\n  URL               : ' + url +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : 11.2 Build 11205' +
    '\n';
  security_report_v4(port:port, severity:SECURITY_HOLE, extra:report);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, display_name, url, version);