Nextcloud Server < 21.0.8, 22.x < 22.2.4, 23.x < 23.0.1 Application Installation Vulnerability (GHSA-5vw6-6prg-gvw6)

# SPDX-FileCopyrightText: 2022 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-or-later

CPE = "cpe:/a:nextcloud:nextcloud_server";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.148161");
  script_version("2023-05-15T09:08:55+0000");
  script_tag(name:"last_modification", value:"2023-05-15 09:08:55 +0000 (Mon, 15 May 2023)");
  script_tag(name:"creation_date", value:"2022-05-23 04:10:40 +0000 (Mon, 23 May 2022)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-05-06 18:11:00 +0000 (Fri, 06 May 2022)");

  script_cve_id("CVE-2022-24889");

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

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

  script_name("Nextcloud Server < 21.0.8, 22.x < 22.2.4, 23.x < 23.0.1 Application Installation Vulnerability (GHSA-5vw6-6prg-gvw6)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_nextcloud_detect.nasl");
  script_mandatory_keys("nextcloud/installed");

  script_tag(name:"summary", value:"Nextcloud Server is prone to a vulnerability where it is
  possible to force an admin to install recommended applications.");

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

  script_tag(name:"insight", value:"It is possible to trick administrators into enabling recommended
  apps for the Nextcloud server.");

  script_tag(name:"affected", value:"Nextcloud Server prior to version 21.0.8, version 22.x through
  22.2.3 and version 23.0.0.");

  script_tag(name:"solution", value:"Update to version 21.0.8, 22.2.4, 23.0.1 or later.");

  script_xref(name:"URL", value:"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5vw6-6prg-gvw6");

  exit(0);
}

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

if (!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: "21.0.8")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "21.0.8", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "22.0", test_version_up: "22.2.4")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "22.2.4", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "23.0", test_version_up: "23.0.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "23.0.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);