CKEditor Detection (HTTP)

# SPDX-FileCopyrightText: 2016 SCHUTZWERK GmbH
# 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-or-later

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.111094");
  script_version("2025-07-15T05:43:28+0000");
  script_tag(name:"last_modification", value:"2025-07-15 05:43:28 +0000 (Tue, 15 Jul 2025)");
  script_tag(name:"creation_date", value:"2016-04-17 18:00:00 +0200 (Sun, 17 Apr 2016)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_name("CKEditor Detection (HTTP)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 SCHUTZWERK GmbH");
  script_family("Product detection");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl",
                      "DDI_Directory_Scanner.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_xref(name:"URL", value:"https://ckeditor.com/");

  script_tag(name:"summary", value:"HTTP based detection of CKEditor.");

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

  exit(0);
}

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

port = http_get_port( default:80 );

cgidirs = make_list_unique( "/", http_cgi_dirs( port:port ) );
subdirs = make_list( "/", "/ckeditor", "/editor",
                     "/admin/ckeditor",
                     "/sites/all/modules/ckeditor",
                     "/resources/ckeditor",
                     "/clientscript/ckeditor",
                     "/assets/js/ckeditor",
                     "/wp-content/plugins/ckeditor-for-wordpress/ckeditor" );
foreach cgidir( cgidirs ) {
  foreach subdir( subdirs ) {
    # To avoid doubled calls and calls like //dir
    if( cgidir != "/" && subdir == "/" )
      subdir = "";
    if( cgidir == "/" )
      cgidir = "";
    dirs = make_list_unique( dirs, cgidir + subdir );
  }
}

foreach dir( dirs ) {

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

  url = dir + "/ckeditor.js";
  buf = http_get_cache( item:url, port:port );
  url2 = dir + "/CHANGES.md";
  buf2 = http_get_cache( item:url2, port:port );

  if( ( buf =~ "^HTTP/1\.[01] 200" && "CKSource" >< buf && "CKEDITOR" >< buf ) ||
      ( buf2 =~ "^HTTP/1\.[01] 200" && buf2 =~ "CKEditor . Changelog" ) ) {

    version = "unknown";

    # version:'3.5.3'
    # version:"4.4.5"
    # version:"4.9.2"
    ver = eregmatch( pattern:'version\\s*:\\s*["\']([0-9.]+)["\']', string:buf, icase:FALSE );
    if( ! isnull( ver[1] ) ) {
      version = ver[1];
      conclUrl = http_report_vuln_url( port:port, url:url, url_only:TRUE );
    }

    if( version == "unknown" && buf2 =~ "^HTTP/1\.[01] 200" ) {
      ver = eregmatch( pattern:"## CKEditor ([0-9.]+)", string:buf2 );
      if( ! isnull( ver[1] ) ) {
        version = ver[1];
        conclUrl = http_report_vuln_url( port:port, url:url2, url_only:TRUE );
      }
    }

    cpe = build_cpe( value:version, exp:"^([0-9.]+)", base:"cpe:/a:ckeditor:ckeditor:" );
    if( ! cpe )
      cpe = "cpe:/a:ckeditor:ckeditor";

    set_kb_item( name:"ckeditor/detected", value:TRUE );
    set_kb_item( name:"ckeditor/http/detected", value:TRUE );
    set_kb_item( name:"ckeditor_or_fckeditor/detected", value:TRUE );
    set_kb_item( name:"ckeditor_or_fckeditor/http/detected", value:TRUE );

    register_product( cpe:cpe, location:install, port:port, service:"www" );

    log_message( data:build_detection_report( app:"CKEditor",
                                              version:version,
                                              concluded:ver[0],
                                              concludedUrl:conclUrl,
                                              install:install,
                                              cpe:cpe ),
                 port:port );
  }
}

exit( 0 );