Cisco IOS XE Software IKEv1 Information Disclosure 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:/o:cisco:ios_xe";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106260");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2016-6415");
  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("2023-07-25T05:05:58+0000");

  script_name("Cisco IOS XE Software IKEv1 Information Disclosure Vulnerability");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160916-ikev1");
  script_xref(name:"URL", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb29204");
  script_xref(name:"URL", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb36055");

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

  script_tag(name:"solution", value:"The vendor has released updates, please see the referenced vendor advisory for more information on the fixed versions.");

  script_tag(name:"summary", value:"A vulnerability in IKEv1 packet processing code in Cisco IOS XE Software
could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure
of confidential information.");

  script_tag(name:"insight", value:"The vulnerability is due to insufficient condition checks in the part of
the code that handles IKEv1 security negotiation requests. An attacker could exploit this vulnerability by
sending a crafted IKEv1 packet to an affected device configured to accept IKEv1 security negotiation requests.");

  script_tag(name:"impact", value:"A successful exploit could allow the attacker to retrieve memory contents,
which could lead to the disclosure of confidential information.");

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

  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/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:"2020-06-03 15:33:00 +0000 (Wed, 03 Jun 2020)");
  script_tag(name:"creation_date", value:"2016-09-19 09:36:49 +0700 (Mon, 19 Sep 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_dependencies("gb_cisco_ios_xe_consolidation.nasl");
  script_mandatory_keys("cisco/ios_xe/detected");
  exit(0);
}

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

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

affected = make_list(
  '3.18.0S',
  '3.10.0S',
  '3.10.1S',
  '3.10.1xb.S',
  '3.10.2S',
  '3.10.2t.S',
  '3.10.3S',
  '3.10.4S',
  '3.10.5S',
  '3.10.6S',
  '3.10.7S',
  '3.11.0S',
  '3.11.1S',
  '3.11.2S',
  '3.11.3S',
  '3.11.4S',
  '3.12.0S',
  '3.12.0a.S',
  '3.12.1S',
  '3.12.4S',
  '3.12.2S',
  '3.12.3S',
  '3.13.2a.S',
  '3.13.5S',
  '3.13.0S',
  '3.13.1S',
  '3.13.2S',
  '3.13.3S',
  '3.13.4S',
  '3.14.0S',
  '3.14.1S',
  '3.14.2S',
  '3.14.3S',
  '3.15.1c.S',
  '3.15.3S',
  '3.15.0S',
  '3.15.1S',
  '3.15.2S',
  '3.17.0S',
  '3.17.1S',
  '3.16.3S',
  '3.16.0S',
  '3.16.0c.S',
  '3.16.1S',
  '3.16.1a.S',
  '3.16.2S' );

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 );