vBulletin < 5.3.0 'parse_url' SSRF 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:/a:vbulletin:vbulletin";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108145");
  script_version("2025-05-29T05:40:25+0000");
  script_cve_id("CVE-2017-7569");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/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:N/S:C/C:N/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-04-12 20:46:00 +0000 (Wed, 12 Apr 2017)");
  script_tag(name:"creation_date", value:"2017-04-19 07:57:33 +0200 (Wed, 19 Apr 2017)");
  script_name("vBulletin < 5.3.0 'parse_url' SSRF Vulnerability");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("vbulletin_http_detect.nasl");
  script_mandatory_keys("vbulletin/detected");

  script_xref(name:"URL", value:"https://www.vbulletin.com/forum/forum/vbulletin-announcements/vbulletin-announcements_aa/4367744-vbulletin-5-3-0-connect-is-now-available");

  script_tag(name:"summary", value:"vBulletin is prone to a server-side request forgery (SSRF)
  vulnerability.");

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

  script_tag(name:"insight", value:"Remote attackers can bypass the CVE-2016-6483 patch and conduct
  SSRF attacks by leveraging the behavior of the PHP parse_url function, aka VBV-17037.");

  script_tag(name:"affected", value:"vBulletin versions before 5.3.0.");

  script_tag(name:"solution", value:"Update to version 5.3.0 or later.");

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

  exit(0);
}

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( version_is_less( version:vers, test_version:"5.3.0" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"5.3.0", install_path:path );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );