IBM WebSphere Portal XML External Entity DoS 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:/a:ibm:websphere_portal";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106202");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  script_tag(name:"creation_date", value:"2016-08-25 13:21:11 +0700 (Thu, 25 Aug 2016)");
  script_tag(name:"cvss_base", value:"5.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-02-19 06:15:00 +0000 (Sun, 19 Feb 2017)");

  script_cve_id("CVE-2016-0245");

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

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

  script_name("IBM WebSphere Portal XML External Entity DoS Vulnerability");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_ibm_websphere_portal_detect.nasl");
  script_mandatory_keys("ibm_websphere_portal/installed");

  script_tag(name:"summary", value:"IBM WebSphere Portal is prone to a denial of service (DoS)
  vulnerability.");

  script_tag(name:"insight", value:"The XML parser allows remote authenticated users to read arbitrary files
or cause a denial of service via an external entity declaration in conjunction with an entity reference,
related to an XML External Entity (XXE) issue.");

  script_tag(name:"impact", value:"An authenticated attacker may read arbitrary files or cause a denial of
service condition.");

  script_tag(name:"affected", value:"WebSphere Portal 8.5 an 8.0");

  script_tag(name:"solution", value:"For 8.5.0 upgrade to Cumulative Fix 10, for 8.0.0 through 8.0.0.1
upgrade to Fix Pack 8.0.0.1 with Cumulative Fix 20.");

  script_xref(name:"URL", value:"https://www-01.ibm.com/support/docview.wss?uid=swg21976358");

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

  exit(0);
}

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

if (!port = get_app_port(cpe: CPE))
  exit(0);

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

if (version =~ "^8\.5\.0") {
  if (version_is_less(version: version, test_version: "8.5.0.0.10")) {
    report = report_fixed_ver(installed_version: version, fixed_version: "8.5.0.0 CF10");
    security_message(port: port, data: report);
    exit(0);
  }
}

if (version =~ "^8\.0\.0\.1") {
  if (version_is_less(version: version, test_version: "8.0.0.1.20")) {
    report = report_fixed_ver(installed_version: version, fixed_version: "8.0.0.1 CF20");
    security_message(port: port, data: report);
    exit(0);
  }
}

exit(0);