MediaWiki < 1.19.8, 1.20.x < 1.20.7, 1.21.x < 1.21.2 Information Disclosure Vulnerabilities (Dec 2013) - Active Check

# 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

CPE = "cpe:/a:mediawiki:mediawiki";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.804166");
  script_version("2024-07-16T05:05:43+0000");
  script_cve_id("CVE-2013-4302", "CVE-2013-4301");
  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_tag(name:"last_modification", value:"2024-07-16 05:05:43 +0000 (Tue, 16 Jul 2024)");
  script_tag(name:"creation_date", value:"2013-12-17 09:57:37 +0530 (Tue, 17 Dec 2013)");
  script_name("MediaWiki < 1.19.8, 1.20.x < 1.20.7, 1.21.x < 1.21.2 Information Disclosure Vulnerabilities (Dec 2013) - Active Check");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2013 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_mediawiki_http_detect.nasl");
  script_mandatory_keys("mediawiki/http/detected");
  script_require_ports("Services/www", 80);

  script_xref(name:"URL", value:"http://secunia.com/advisories/54715");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/62215");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/62434");
  script_xref(name:"URL", value:"http://seclists.org/oss-sec/2013/q3/553");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/86896");
  script_xref(name:"URL", value:"https://bugzilla.wikimedia.org/show_bug.cgi?id=49090");
  script_xref(name:"URL", value:"https://bugzilla.wikimedia.org/show_bug.cgi?id=46332");

  script_tag(name:"summary", value:"MediaWiki is prone to multiple information disclosure
  vulnerabilities.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP POST request and checks the response.");

  script_tag(name:"insight", value:"The flaws are due to:

  - An error within the 'tokens', 'unblock', 'login', 'createaccount', and 'block' API calls that
  can be exploited to disclose the CSRF token value.

  - The application discloses the full installation path in an error message when an invalid
  language is specified in ResourceLoader to 'load.php' script.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to obtain
  CSRF tokens, bypass the cross-site request forgery (CSRF) protection mechanism and gain knowledge
  on sensitive directories on the remote web server via requests.");

  script_tag(name:"affected", value:"MediaWiki versions 1.19.x prior to 1.19.8, 1.20.x prior to
  1.20.7 and 1.21.x prior to 1.21.2.");

  script_tag(name:"solution", value:"Update to version 1.19.8, 1.20.7, 1.21.2 or later.");

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

  exit(0);
}

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

vt_strings = get_vt_strings();
callback = vt_strings["default"];

url = dir + "/api.php";
req = http_post_put_req( port:port, url:url,
                         data:"action=login&lgname=User1&lgpassword=xxx&format=json&callback=" + callback,
                         add_headers:make_array( "Content-Type", "application/x-www-form-urlencoded" ) );
buf = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );
if( ! buf )
  exit( 0 );

if( token = eregmatch( pattern:callback + '\\(\\{"login":\\{"result"\\s*:\\s*"NeedToken"\\s*,\\s*"token"\\s*:\\s*"([a-f0-9]+)"', string:buf ) ) {
  if( isnull( token[1] ) )
    exit( 99 );

  security_message( port:port, data:'It was possible to get the csrf token `' + token[1] + '` via a jsonp request to: ' + http_report_vuln_url( port:port, url:url, url_only:TRUE ) );
  exit( 0 );
}

exit( 99 );