vBulletin 'vb_test.php' Information Disclosure Vulnerability - Active Check

# SPDX-FileCopyrightText: 2020 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:vbulletin:vbulletin";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108827");
  script_version("2025-05-29T05:40:25+0000");
  script_tag(name:"last_modification", value:"2025-05-29 05:40:25 +0000 (Thu, 29 May 2025)");
  script_tag(name:"creation_date", value:"2020-07-31 10:47:37 +0000 (Fri, 31 Jul 2020)");
  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_name("vBulletin 'vb_test.php' Information Disclosure Vulnerability - Active Check");
  # nb: No ACT_ATTACK as this is just a plain file query
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("vbulletin_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("vbulletin/http/detected");

  script_tag(name:"summary", value:"The remote host is disclosing information if the vBulletin
  'vb_test.php' script is exposed.");

  script_tag(name:"vuldetect", value:"Checks if the 'vb_test.php' script is exposed on the remote
  host.");

  script_tag(name:"impact", value:"An unauthenticated attacker might be able gather sensitive
  information about the remote vBulletin installation. Some versions of the script are also known to
  be vulnerable to a cross-site scripting (XSS) vulnerability and a flaw related to the MySQL
  connection to the vBulletin database.");

  script_tag(name:"affected", value:"All vBulletin installations exposing the 'vb_test.php
  script.");

  script_tag(name:"solution", value:"Delete the script or restrict access to it.");

  script_xref(name:"URL", value:"https://www.golem.de/news/websicherheit-vbulletin-testskript-kann-dateien-leaken-2007-149629.html");

  script_tag(name:"qod_type", value:"remote_app");
  script_tag(name:"solution_type", value:"Workaround");

  exit(0);
}

include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");

if( ! port = get_app_port( cpe:CPE, service:"www" ) )
  exit( 0 );

if( ! dir = get_app_location( cpe:CPE, port:port ) )
  exit( 0 );

if( dir == "/" )
  dir = "";

url = dir + "/vb_test.php";

if( http_vuln_check( port:port, url:url, pattern:"<title>vBulletin Test Script</title>", check_header:TRUE ) ) {
  report = http_report_vuln_url( port:port, url:url );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );