Kaseya VSA Information Disclosure Vulnerability - Active Check

# SPDX-FileCopyrightText: 2017 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

CPE = "cpe:/a:kaseya:virtual_system_administrator";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106739");
  script_version("2024-06-26T05:05:39+0000");
  script_tag(name:"last_modification", value:"2024-06-26 05:05:39 +0000 (Wed, 26 Jun 2024)");
  script_tag(name:"creation_date", value:"2017-04-10 14:46:29 +0200 (Mon, 10 Apr 2017)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

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

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

  script_name("Kaseya VSA Information Disclosure Vulnerability - Active Check");

  script_category(ACT_ATTACK);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_kaseya_vsa_detect.nasl");
  script_mandatory_keys("kaseya/vsa/http/detected");
  script_require_ports("Services/www", 443);

  script_tag(name:"summary", value:"Kaseya VSA is prone to an information disclosure vulnerability.");

  script_tag(name:"vuldetect", value:"Sends a HTTP request and checks the response.");

  script_tag(name:"insight", value:"Requests to /install/kaseya.html reveals sensitive information about the
application and its underlying system.");

  script_tag(name:"impact", value:"An unauthenticated attacker may obtain sensitive information about the
application and its underlying system.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  script_xref(name:"URL", value:"https://www.osisecurity.com.au/kaseya-information-disclosure-vulnerability.html");

  exit(0);
}

include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");

if (!port = get_app_port(cpe: CPE, service: "www"))
  exit(0);

if (!dir = get_app_location(cpe: CPE, port: port))
  exit(0);

if (dir == "/")
  dir = "";

url = dir + "/install/kaseya.html";
if (http_vuln_check(port: port, url: url, pattern: "IFX_INSTALLED_VERSION",
                    check_header: TRUE, extra_check: "SUPPORTDIR")) {
  report = http_report_vuln_url(port: port, url: url);
  security_message(port: port, data: report);
  exit(0);
}

exit(0);