Cisco Email Security Appliance JAR Advanced Malware Protection DoS Vulnerability

2016-10-27T00:00:00
ID OPENVAS:1361412562310140021
Type openvas
Reporter This script is Copyright (C) 2016 Greenbone Networks GmbH
Modified 2018-09-26T00:00:00

Description

A vulnerability in Advanced Malware Protection (AMP) for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition due to the AMP process unexpectedly restarting.

The vulnerability is due to improper validation of a Java Archive (JAR) file scanned when AMP is configured. An attacker could exploit this vulnerability by crafting a JAR file, and attaching this JAR file to an email that is then sent through the affected device. An exploit could allow the attacker to cause the Cisco ESA and WSA AMP process to unexpectedly restart due to the malformed JAR file.

Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esawsa3

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_cisco_esa_cisco-sa-20161026-esawsa3.nasl 11614 2018-09-26 07:39:28Z asteins $
#
# Cisco Email Security Appliance JAR Advanced Malware Protection DoS Vulnerability
#
# Authors:
# Michael Meyer <michael.meyer@greenbone.net>
#
# Copyright:
# Copyright (c) 2016 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.
###############################################################################

CPE = "cpe:/h:cisco:email_security_appliance";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.140021");
  script_cve_id("CVE-2016-6360");
  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_version("$Revision: 11614 $");

  script_name("Cisco Email Security Appliance JAR Advanced Malware Protection DoS Vulnerability ");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esawsa3");

  script_tag(name:"vuldetect", value:"Check the version.");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");
  script_tag(name:"summary", value:"A vulnerability in Advanced Malware Protection (AMP) for Cisco Email Security Appliances (ESA) and
Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to cause a partial
denial of service (DoS) condition due to the AMP process unexpectedly restarting.

The vulnerability is due to improper validation of a Java Archive (JAR) file scanned when AMP is
configured. An attacker could exploit this vulnerability by crafting a JAR file, and attaching
this JAR file to an email that is then sent through the affected device. An exploit could allow
the attacker to cause the Cisco ESA and WSA AMP process to unexpectedly restart due to the
malformed JAR file.

Cisco has released software updates that address this vulnerability. Workarounds that address this
vulnerability are not available.

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esawsa3");

  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  script_tag(name:"last_modification", value:"$Date: 2018-09-26 09:39:28 +0200 (Wed, 26 Sep 2018) $");
  script_tag(name:"creation_date", value:"2016-10-27 13:46:30 +0200 (Thu, 27 Oct 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("This script is Copyright (C) 2016 Greenbone Networks GmbH");
  script_dependencies("gb_cisco_esa_version.nasl");
  script_mandatory_keys("cisco_esa/installed");
 exit(0);
}

include("host_details.inc");
include("version_func.inc");

if( ! version = get_app_version( cpe:CPE ) ) exit( 0 );

affected = make_list(
		'9.5.0-000',
		'9.5.0-201',
		'9.6.0-000',
		'9.6.0-042',
		'9.6.0-051',
		'9.7.0-125' );

foreach af ( affected )
{
  if( version == af )
  {
    report = report_fixed_ver(  installed_version:version, fixed_version: "See advisory" );
    security_message( port:0, data:report );
    exit( 0 );
  }
}

exit( 99 );