vBulletin 5.x < 5.4.4 Open Redirect Vulnerability

# SPDX-FileCopyrightText: 2018 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.112418");
  script_version("2025-05-29T05:40:25+0000");
  script_tag(name:"cvss_base", value:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:N");
  script_tag(name:"last_modification", value:"2025-05-29 05:40:25 +0000 (Thu, 29 May 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-11-30 20:46:00 +0000 (Fri, 30 Nov 2018)");
  script_tag(name:"creation_date", value:"2018-11-08 09:07:22 +0100 (Thu, 08 Nov 2018)");

  script_cve_id("CVE-2018-15493");

  script_name("vBulletin 5.x < 5.4.4 Open Redirect Vulnerability");

  script_tag(name:"summary", value:"vBulletin is prone to an open redirect vulnerability.");

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

  script_tag(name:"insight", value:"Any value of the GET parameter 'url' is accepted as the target
  of a redirection. This can make phishing attacks much more credible.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to redirect
  users to arbitrary web sites and conduct phishing attacks.");

  script_tag(name:"affected", value:"vBulletin versions 5.x before 5.4.4.");

  script_tag(name:"solution", value:"Update to version 5.4.4 or later.");

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

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("vbulletin_http_detect.nasl");
  script_mandatory_keys("vbulletin/detected");

  script_xref(name:"URL", value:"https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-017.txt");

  exit(0);
}

CPE = "cpe:/a:vbulletin:vbulletin";

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

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

if(!infos = get_app_version_and_location(cpe:CPE, port:port, exit_no_version:TRUE))
  exit(0);

vers = infos["version"];
path = infos["location"];

if(vers =~ "^5\.[0-4]\." && version_is_less(version:vers, test_version:"5.4.4")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"5.4.4", install_path:path);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);