Nginx 1.25.3 HTTP/3 Vulnerability

# SPDX-FileCopyrightText: 2024 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:nginx:nginx";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.114358");
  script_version("2024-02-19T05:05:57+0000");
  script_tag(name:"last_modification", value:"2024-02-19 05:05:57 +0000 (Mon, 19 Feb 2024)");
  script_tag(name:"creation_date", value:"2024-02-16 14:19:15 +0000 (Fri, 16 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_cve_id("CVE-2024-24989");

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

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

  script_name("Nginx 1.25.3 HTTP/3 Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Web Servers");
  script_dependencies("gb_nginx_consolidation.nasl");
  script_mandatory_keys("nginx/detected");

  script_tag(name:"summary", value:"Nginx is prone to a NULL pointer dereference vulnerability in
  HTTP/3.");

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

  script_tag(name:"insight", value:"When the product is configured to use the HTTP/3 QUIC module,
  undisclosed requests can cause worker processes to terminate.");

  script_tag(name:"impact", value:"Traffic is disrupted while the process restarts. This
  vulnerability allows a remote unauthenticated attacker to cause a denial-of-service (DoS).");

  script_tag(name:"affected", value:"Nginx version 1.25.3 only.");

  script_tag(name:"solution", value:"Update to version 1.25.4 or later.");

  script_xref(name:"URL", value:"https://mailman.nginx.org/pipermail/nginx-announce/2024/NW6MNW34VZ6HDIHH5YFBIJYZJN7FGNAV.html");
  script_xref(name:"URL", value:"https://nginx.org/en/security_advisories.html");
  script_xref(name:"URL", value:"https://my.f5.com/manage/s/article/K000138444");

  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_equal(version: version, test_version: "1.25.3")) {
  report = report_fixed_ver( installed_version: version, fixed_version: "1.25.4", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);