Cisco AsyncOS Software for Cisco WSA Filtering Bypass Vulnerability

# SPDX-FileCopyrightText: 2017 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

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106593");
  script_cve_id("CVE-2017-3827");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_version("2023-06-27T05:05:30+0000");

  script_name("Cisco AsyncOS Software for Cisco WSA Filtering Bypass Vulnerability");

  script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170215-asyncos");

  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 Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to
  bypass configured user filters on the device.");

  script_tag(name:"insight", value:"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.");

  script_tag(name:"impact", value:"A successful exploit could allow the attacker to bypass user filters
  configured 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.");

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

  script_tag(name:"last_modification", value:"2023-06-27 05:05:30 +0000 (Tue, 27 Jun 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-07-25 01:29:00 +0000 (Tue, 25 Jul 2017)");
  script_tag(name:"creation_date", value:"2017-02-16 11:36:45 +0700 (Thu, 16 Feb 2017)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2017 Greenbone AG");

  # Cisco states WSA as not vulnerable anymore.
  script_tag(name:"deprecated", value: TRUE);

  exit(0);
}

exit(66);