Samba File Buffer Overflow Vulnerability (CVE-2023-5568)

# 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:samba:samba";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.104995");
  script_version("2023-11-03T16:10:08+0000");
  script_tag(name:"last_modification", value:"2023-11-03 16:10:08 +0000 (Fri, 03 Nov 2023)");
  script_tag(name:"creation_date", value:"2023-10-17 13:48:47 +0000 (Tue, 17 Oct 2023)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-11-01 20:44:00 +0000 (Wed, 01 Nov 2023)");

  script_cve_id("CVE-2023-5568");

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

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

  script_name("Samba File Buffer Overflow Vulnerability (CVE-2023-5568)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("smb_nativelanman.nasl", "gb_samba_detect.nasl");
  script_mandatory_keys("samba/smb_or_ssh/detected");

  script_tag(name:"summary", value:"Samba is prone to a buffer overflow vulnerability.");

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

  script_tag(name:"insight", value:"A heap buffer overflow with freshness tokens in the Heimdal KDC
  exists.");

  script_tag(name:"affected", value:"Samba versions 4.19.x prior to 4.19.2.");

  script_tag(name:"solution", value:"Update to version 4.19.2 or later.");

  script_xref(name:"URL", value:"https://lists.samba.org/archive/samba-announce/2023/000652.html");

  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_in_range_exclusive(version: version, test_version_lo: "4.19.0", test_version_up: "4.19.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "4.19.2", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);