Abyss Web Server Heap Overflow Vulnerability

# SPDX-FileCopyrightText: 2017 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:aprelium:abyss_web_server";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.140581");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  script_tag(name:"creation_date", value:"2017-12-05 13:18:33 +0700 (Tue, 05 Dec 2017)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");

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

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

  script_name("Abyss Web Server Heap Overflow Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_abyss_detect.nasl");
  script_mandatory_keys("abyss/installed");

  script_tag(name:"summary", value:"Abyss Web Server is prone to a heap overflow vulnerability.");

  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 corrupt heap memory of the Abyss Web Server by sending
specially crafted HTML in repeated HTTP POST requests.");

  script_tag(name:"impact", value:"An unauthenticated attacker may conduct a denial of service attack or
execute arbitrary code.");

  script_tag(name:"affected", value:"Abyss Web Server prior to version 2.11.6.");

  script_tag(name:"solution", value:"Update to version 2.11.6 or later.");

  script_xref(name:"URL", value:"http://hyp3rlinx.altervista.org/advisories/ABYSS-WEB-SERVER-MEMORY-HEAP-CORRUPTION.txt");
  script_xref(name:"URL", value:"https://aprelium.com/news/abws2-11-6.html");

  exit(0);
}

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

if (!port = get_app_port(cpe: CPE))
  exit(0);

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

if (version_is_less(version: version, test_version: "2.11.6")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.11.6");
  security_message(port: port, data: report);
  exit(0);
}

exit(99);