Liferay Portal < 7.3.1 Information Disclosure Vulnerability

# SPDX-FileCopyrightText: 2020 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:liferay:liferay_portal";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.144673");
  script_version("2025-09-26T05:38:41+0000");
  script_tag(name:"last_modification", value:"2025-09-26 05:38:41 +0000 (Fri, 26 Sep 2025)");
  script_tag(name:"creation_date", value:"2020-09-28 09:43:51 +0000 (Mon, 28 Sep 2020)");
  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:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-10-07 11:36:00 +0000 (Wed, 07 Oct 2020)");

  script_cve_id("CVE-2020-15840");

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

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

  script_name("Liferay Portal < 7.3.1 Information Disclosure Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_liferay_consolidation.nasl");
  script_mandatory_keys("liferay/portal/detected");

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

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"Liferay Portal does not decode a URL before determining if the
  resource should be served, which allows remote attackers to access restricted portlet resources
  (e.g., files within /META-INF and /WEB-IN) via double encoded URLs.");

  script_tag(name:"affected", value:"Liferay Portal prior to version 7.3.1.");

  script_tag(name:"solution", value:"Update to version 7.3.1 or later.");

  script_xref(name:"URL", value:"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119772204");

  exit(0);
}

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

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "7.3.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.3.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);