Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerability (cisco-sa-20160928-cip)

# 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:/o:cisco:ios";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106296");
  script_version("2026-02-02T05:59:28+0000");
  script_tag(name:"last_modification", value:"2026-02-02 05:59:28 +0000 (Mon, 02 Feb 2026)");
  script_tag(name:"creation_date", value:"2016-09-29 13:55:06 +0700 (Thu, 29 Sep 2016)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-07-30 01:29:00 +0000 (Sun, 30 Jul 2017)");

  script_cve_id("CVE-2016-6391");

  script_tag(name:"qod_type", value:"remote_banner");

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

  script_name("Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerability (cisco-sa-20160928-cip)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("CISCO");
  script_dependencies("gb_cisco_ios_consolidation.nasl");
  script_mandatory_keys("cisco/ios/detected");

  script_tag(name:"summary", value:"A vulnerability in the Common Industrial Protocol (CIP) feature
  of Cisco IOS Software could allow an unauthenticated, remote attacker to create a denial of
  service (DoS) condition.");

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

  script_tag(name:"insight", value:"The vulnerability is due to a failure to properly process an
  unusual, but valid, set of requests to an affected device. An attacker could exploit this
  vulnerability by submitting a CIP message request designed to trigger the vulnerability to an
  affected device.");

  script_tag(name:"impact", value:"An exploit could cause the switch to stop processing traffic,
  requiring a restart of the device to regain functionality.");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");

  script_xref(name:"URL", value:"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-cip");

  exit(0);
}

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

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

affected = make_list(
  "12.2(44)EX",
  "12.2(44)EX1",
  "12.2(46)SE",
  "12.2(46)SE1",
  "12.2(46)SE2",
  "12.2(50)SE",
  "12.2(50)SE1",
  "12.2(50)SE2",
  "12.2(50)SE3",
  "12.2(50)SE4",
  "12.2(50)SE5",
  "12.2(52)SE",
  "12.2(52)SE1",
  "12.2(55)SE",
  "12.2(55)SE10",
  "12.2(55)SE3",
  "12.2(55)SE4",
  "12.2(55)SE5",
  "12.2(55)SE6",
  "12.2(55)SE7",
  "12.2(55)SE8",
  "12.2(55)SE9",
  "12.2(58)SE2",
  "15.0(2)EB",
  "15.0(1)EY",
  "15.0(1)EY1",
  "15.0(1)EY2",
  "15.0(2)EY",
  "15.0(2)EY1",
  "15.0(2)EY2",
  "15.0(2)EY3",
  "15.0(2)SE",
  "15.0(2)SE1",
  "15.0(2)SE2",
  "15.0(2)SE3",
  "15.0(2)SE4",
  "15.0(2)SE5",
  "15.0(2)SE6",
  "15.0(2)SE7",
  "15.0(2)SE9",
  "15.2(2)E",
  "15.2(2)E1",
  "15.2(2)E2",
  "15.2(2)E4",
  "15.2(3)EA",
  "15.2(1)EY",
  "15.3(3)JA",
  "15.3(3)JA1",
  "15.3(3)JA1m",
  "15.3(3)JA1n",
  "15.3(3)JA4",
  "15.3(3)JA5",
  "15.3(3)JA7",
  "15.3(3)JA77",
  "15.3(3)JA8",
  "15.3(3)JA9",
  "15.3(3)JAA",
  "15.3(3)JAB",
  "15.3(3)JAX",
  "15.3(3)JAX1",
  "15.3(3)JAX2",
  "15.3(3)JB",
  "15.3(3)JB75",
  "15.3(3)JBB",
  "15.3(3)JBB1",
  "15.3(3)JBB2",
  "15.3(3)JBB4",
  "15.3(3)JBB5",
  "15.3(3)JBB50",
  "15.3(3)JBB6",
  "15.3(3)JBB6a",
  "15.3(3)JBB8",
  "15.3(3)JC",
  "15.3(3)JN3",
  "15.3(3)JN4",
  "15.3(3)JN7",
  "15.3(3)JN8",
  "15.3(3)JNB",
  "15.3(3)JNB1",
  "15.3(3)JNB2",
  "15.3(3)JNB3",
  "15.3(3)JNC",
  "15.3(3)JNC1",
  "15.3(3)JNP",
  "15.3(3)JNP1" );

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 );