PRTG Network Monitor <= 18.2.39.1661 Multiple Vulnerabilities

# SPDX-FileCopyrightText: 2018 Greenbone AG
# 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-only

if( description )
{
  script_oid("1.3.6.1.4.1.25623.1.0.112435");
  script_version("2025-04-11T15:45:04+0000");
  script_tag(name:"last_modification", value:"2025-04-11 15:45:04 +0000 (Fri, 11 Apr 2025)");
  script_tag(name:"creation_date", value:"2018-11-22 10:37:11 +0100 (Thu, 22 Nov 2018)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2025-03-14 18:22:27 +0000 (Fri, 14 Mar 2025)");

  script_tag(name:"qod_type", value:"remote_banner");

  script_tag(name:"solution_type", value:"VendorFix");

  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2018-19410", "CVE-2018-19411");

  script_name("PRTG Network Monitor <= 18.2.39.1661 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_prtg_network_monitor_detect.nasl");
  script_mandatory_keys("prtg_network_monitor/installed");

  script_tag(name:"summary", value:"PRTG Network Monitor is prone to multiple vulnerabilities.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"The following vulnerabilities exist:

  - A Local File Inclusion vulnerability allows remote unauthenticated attackers to create users with read-write privileges including
  administrators by overriding attributes of the 'include' directive in /public/login.htm and including and executing
  a '/api/addusers' file. By providing 'id' and 'users' parameters, an attacker can create users with
  read-write privileges including administrators. (CVE-2018-19410)

  - An Improper Authorization vulnerability allows attackers with read-only privileges to
  create users with read-write privileges including administrators via a specially crafted
  HTTP request to /api/addusers. (CVE-2018-19411)");
  script_tag(name:"affected", value:"PRTG Network Monitor through version 18.2.39.1661.");
  script_tag(name:"solution", value:"Update to version 18.2.40.1683.");

  script_xref(name:"URL", value:"https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-24/");
  script_xref(name:"URL", value:"https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-25/");

  exit(0);
}

CPE = "cpe:/a:paessler:prtg_network_monitor";

include( "host_details.inc" );
include( "version_func.inc" );

if( ! port = get_app_port( cpe: CPE ) ) exit( 0 );
if( ! version = get_app_version( cpe: CPE, port: port ) ) exit( 0 );

if( version_is_less( version: version, test_version: "18.2.40.1683" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "18.2.40.1683" );
  security_message( data: report, port: port );
  exit( 0 );
}

exit( 99 );