Nextcloud Server < 25.0.11, 26.x < 26.0.6, 27.x < 27.1.0 Multiple Vulnerabilities (GHSA-2448-44RP-C7HH, GHSA-35p6-4992-w5fr)

# SPDX-FileCopyrightText: 2023 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:nextcloud:nextcloud_server";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.127635");
  script_version("2025-02-25T13:24:30+0000");
  script_tag(name:"last_modification", value:"2025-02-25 13:24:30 +0000 (Tue, 25 Feb 2025)");
  script_tag(name:"creation_date", value:"2023-11-22 09:50:11 +0000 (Wed, 22 Nov 2023)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:M/C:C/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-11-30 15:06:00 +0000 (Thu, 30 Nov 2023)");

  script_cve_id("CVE-2023-48303", "CVE-2023-48305");

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

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

  script_name("Nextcloud Server < 25.0.11, 26.x < 26.0.6, 27.x < 27.1.0 Multiple Vulnerabilities (GHSA-2448-44RP-C7HH, GHSA-35p6-4992-w5fr)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_nextcloud_server_http_detect.nasl");
  script_mandatory_keys("nextcloud/server/detected");

  script_tag(name:"summary", value:"Nextcloud Server is prone to multiple vulnerabilities.");

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

  script_tag(name:"impact", value:"The folloowing vulnerabilities exist:

  - CVE-2023-48303: Admins can change authentication details of user configured external storage.

  - CVE-2023-48305: When the log level was set to debug the user_ldap app logged user passwords
  in plaintext into the log file. If the log file was then leaked or shared in any way the user's
  passwords would be leaked.");

  script_tag(name:"affected", value:"Nextcloud Server version prior to 25.0.11, 26.x prior to
  26.0.6 and 27.x prior to 27.1.0.");

  script_tag(name:"solution", value:"Update to version 25.0.11, 26.0.6, 27.1.0 or later.");

  script_xref(name:"URL", value:"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44RP-C7HH");
  script_xref(name:"URL", value:"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr");

  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: "25.0.11" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "25.0.11", install_path: location );
  security_message( port: port, data: report );
  exit( 0 );
}

if( version_in_range_exclusive( version: version, test_version_lo: "26.0", test_version_up: "26.0.6" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "26.0.6", install_path: location );
  security_message( port: port, data: report );
  exit( 0 );
}

if( version_in_range_exclusive( version: version, test_version_lo: "27.0", test_version_up: "27.1.0" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "27.1.0", install_path: location );
  security_message( port: port, data: report );
  exit( 0 );
}

exit( 99 );