Cisco IOS Software IPv6 First Hop Security Denial of Service Vulnerabilities (cisco-sa-20150923-fhs)

# 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("1.3.6.1.4.1.25623.1.0.105641");
  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:"2016-05-03 19:33:03 +0200 (Tue, 03 May 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_cve_id("CVE-2015-6278", "CVE-2015-6279");

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

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

  script_name("Cisco IOS Software IPv6 First Hop Security Denial of Service Vulnerabilities (cisco-sa-20150923-fhs)");

  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:"Two vulnerabilities in the IPv6 first hop security feature of
  Cisco IOS Software could allow an unauthenticated, remote attacker to cause an affected device to
  reload.");

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

  script_tag(name:"insight", value:"The following flaws exist:

  - CVE-2015-6278: IPv6 snooping secure network discovery denial of service

  - CVE-2015-6279: IPv6 snooping denial of service");

  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-20150923-fhs");
  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(50)SY",
  "12.2(50)SY1",
  "12.2(50)SY2",
  "12.2(50)SY3",
  "12.2(50)SY4",
  "15.0(2)EA2",
  "15.0(2)EJ",
  "15.0(2)EJ1",
  "15.0(1)EX",
  "15.0(2a)EX5",
  "15.0(2)EZ",
  "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)SE8",
  "15.0(1)SY",
  "15.0(1)SY1",
  "15.0(1)SY2",
  "15.0(1)SY3",
  "15.0(1)SY4",
  "15.0(1)SY5",
  "15.0(1)SY6",
  "15.0(1)SY7",
  "15.0(1)SY7a",
  "15.0(1)SY8",
  "15.1(2)SG",
  "15.1(2)SG1",
  "15.1(2)SG2",
  "15.1(2)SG3",
  "15.1(2)SG4",
  "15.1(2)SG5",
  "15.1(2)SG6",
  "15.1(1)SY",
  "15.1(1)SY1",
  "15.1(1)SY2",
  "15.1(1)SY3",
  "15.1(1)SY4",
  "15.1(1)SY5",
  "15.1(2)SY",
  "15.1(2)SY1",
  "15.1(2)SY2",
  "15.1(2)SY3",
  "15.1(2)SY4",
  "15.1(2)SY4a",
  "15.1(2)SY5",
  "15.2(1)E",
  "15.2(1)E1",
  "15.2(1)E2",
  "15.2(1)E3",
  "15.2(2)E",
  "15.2(2)E1",
  "15.2(2)E2",
  "15.2(2a)E1",
  "15.2(3)E",
  "15.2(3)E1",
  "15.2(3a)E",
  "15.2(2)EA1",
  "15.2(4)S",
  "15.2(4)S1",
  "15.2(4)S2",
  "15.2(4)S3",
  "15.2(4)S3a",
  "15.2(4)S4",
  "15.2(4)S4a",
  "15.2(4)S5",
  "15.2(4)S6",
  "15.2(4)S7",
  "15.2(1)SY",
  "15.2(1)SY0a",
  "15.3(1)S",
  "15.3(1)S2",
  "15.3(2)S",
  "15.3(2)S0a",
  "15.3(2)S1",
  "15.3(2)S2",
  "15.3(3)S",
  "15.3(3)S1",
  "15.3(3)S2",
  "15.3(3)S3",
  "15.3(3)S4",
  "15.3(3)S5",
  "15.4(1)S",
  "15.4(1)S1",
  "15.4(1)S2",
  "15.4(1)S3",
  "15.4(2)S",
  "15.4(2)S1",
  "15.4(2)S2",
  "15.4(2)S3",
  "15.4(3)S",
  "15.4(3)S1",
  "15.4(3)S2",
  "15.5(1)S",
  "15.5(1)S1" );

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 );