Cisco Email Security Appliance Malformed MIME Header Vulnerability

# SPDX-FileCopyrightText: 2016 Greenbone AG
# 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

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

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.140023");
  script_cve_id("CVE-2016-1480");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_version("2025-12-19T15:41:09+0000");

  script_name("Cisco Email Security Appliance Malformed MIME Header Vulnerability");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esawsa1");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");
  script_tag(name:"summary", value:"A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS
  Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an
  unauthenticated, remote attacker to bypass configured user filters on the device.

  The vulnerability is due to improper error handling of a malformed MIME header in an email
  attachment. An attacker could exploit this vulnerability by sending an email with a crafted MIME
  attachment. For example, a successful exploit could allow the attacker to bypass configured user
  filters to prevent executable files from being opened. The malformed MIME headers may not be RFC
  compliant but some mail clients could still allow users to access the attachment, which may not have
  been properly filtered by the device.

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

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

  script_tag(name:"last_modification", value:"2025-12-19 15:41:09 +0000 (Fri, 19 Dec 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-07-29 01:34:00 +0000 (Sat, 29 Jul 2017)");
  script_tag(name:"creation_date", value:"2016-10-27 14:06:03 +0200 (Thu, 27 Oct 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_dependencies("gb_cisco_esa_consolidation.nasl");
  script_mandatory_keys("cisco/esa/detected");
  exit(0);
}

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

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

affected = make_list(
  '8.0.0',
  '8.0.1-023',
  '8.5.0-000',
  '8.5.0-ER1-198',
  '8.5.6-052',
  '8.5.6-073',
  '8.5.6-074',
  '8.5.6-106',
  '8.5.6-113',
  '8.5.7-042',
  '8.6.0',
  '8.6.0-011',
  '8.9.0',
  '8.9.1-000',
  '8.9.2-032',
  '9.0.0',
  '9.0.0-212',
  '9.0.0-461',
  '9.0.5-000',
  '9.1.0',
  '9.1.0-011',
  '9.1.0-101',
  '9.1.0-032',
  '9.1.1-000',
  '9.4.0',
  '9.4.4-000',
  '9.5.0-000',
  '9.5.0-201',
  '9.6.0-000',
  '9.6.0-042',
  '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 );