Cisco cBR Series Converged Broadband Routers List Headers Denial of Service 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

CPE = "cpe:/o:cisco:ios_xe";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106573");
  script_cve_id("CVE-2017-3824");
  script_tag(name:"cvss_base", value:"5.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:N/I:N/A:C");
  script_version("2023-07-14T16:09:27+0000");

  script_name("Cisco cBR Series Converged Broadband Routers List Headers Denial of Service Vulnerability");

  script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170201-cbr");

  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 handling of list headers in Cisco cBR Series
Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the device to reload,
resulting in a denial of service (DoS) condition.");

  script_tag(name:"insight", value:"The vulnerability is due to memory corruption. An attacker could exploit
this vulnerability by sending crafted PacketCable Multimedia (PCMM) packets to an affected device.");

  script_tag(name:"impact", value:"An exploit could allow the attacker to cause the device to reload, resulting
in a DoS condition.");

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

  script_tag(name:"last_modification", value:"2023-07-14 16:09:27 +0000 (Fri, 14 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H");
  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:"2017-02-07 14:50:26 +0700 (Tue, 07 Feb 2017)");
  script_category(ACT_GATHER_INFO);
  script_family("CISCO");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_dependencies("gb_cisco_ios_xe_consolidation.nasl");
  script_mandatory_keys("cisco/ios_xe/detected", "cisco/ios_xe/model");
  exit(0);
}

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

model = get_kb_item("cisco/ios_xe/model");
if (!model || model !~ "^cBR")
  exit(99);

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

affected = make_list(
  '3.16.0',
  '3.16.1',
  '3.17.0' );

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);