ProFTPD < 1.3.8c Access Control Vulnerability

# SPDX-FileCopyrightText: 2025 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:proftpd:proftpd";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.155384");
  script_version("2025-09-24T05:39:03+0000");
  script_tag(name:"last_modification", value:"2025-09-24 05:39:03 +0000 (Wed, 24 Sep 2025)");
  script_tag(name:"creation_date", value:"2025-09-23 08:36:18 +0000 (Tue, 23 Sep 2025)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:N/A:N");

  script_cve_id("CVE-2024-48651");

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

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

  script_name("ProFTPD < 1.3.8c Access Control Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2025 Greenbone AG");
  script_family("FTP");
  script_dependencies("gb_proftpd_consolidation.nasl");
  script_mandatory_keys("proftpd/detected");

  script_tag(name:"summary", value:"ProFTPD is prone to an access control vulnerability.");

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

  script_tag(name:"insight", value:"Supplemental group inheritance grants unintended access to GID
  0 because of the lack of supplemental groups from mod_sql.");

  script_tag(name:"affected", value:"ProFTPD prior to version 1.3.8c.");

  script_tag(name:"solution", value:"Update to version 1.3.8c or later.");

  script_xref(name:"URL", value:"https://github.com/proftpd/proftpd/issues/1830");
  script_xref(name:"URL", value:"https://github.com/proftpd/proftpd/blob/1.3.8/NEWS");

  exit(0);
}

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

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version_is_less(version: version, test_version: "1.3.8c")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.3.8c");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);