Ruby on Rails (RoR) / Ruby Detection (HTTP)

# SPDX-FileCopyrightText: 2010 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("1.3.6.1.4.1.25623.1.0.902089");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_version("2025-09-09T05:38:49+0000");
  script_tag(name:"last_modification", value:"2025-09-09 05:38:49 +0000 (Tue, 09 Sep 2025)");
  script_tag(name:"creation_date", value:"2010-08-02 12:38:17 +0200 (Mon, 02 Aug 2010)");
  script_name("Ruby on Rails (RoR) / Ruby Detection (HTTP)");
  script_tag(name:"cvss_base", value:"0.0");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  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", 3000);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"summary", value:"HTTP based detection of Ruby on Rails (RoR). In addition this
  script also tries to detect Ruby itself.");

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

  exit(0);
}

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

port = http_get_port( default:3000 );

rootInstalled = FALSE;

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

  if(rootInstalled)
    break;

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

  sndReq = http_get(item:dir + "/rails/info/properties/", port:port);
  rcvRes = http_keepalive_send_recv(port:port, data:sndReq);
  sndReq2 = http_get(item:dir + "/doesnt_exist/", port:port);
  rcvRes2 = http_keepalive_send_recv(port:port, data:sndReq2);
  sndReq3 = http_get(item:dir + "/rails/info/routes/", port:port);
  rcvRes3 = http_keepalive_send_recv(port:port, data:sndReq3);

  if(">Ruby version<" >< rcvRes || ">Rails version<" >< rcvRes || "<title>Routes</title>" >< rcvRes ||
     "<title>Action Controller: Exception caught</title>" >< rcvRes2 || "<title>Routes</title>" >< rcvRes3) {

    rorVersion = "unknown";
    railsVersion = "unknown";
    concl = http_report_vuln_url(port:port, url:dir + "/doesnt_exist/", url_only:TRUE) + " or " + http_report_vuln_url(port:port, url:dir + "/rails/info/routes/", url_only:TRUE);
    if(dir == "")
      rootInstalled = TRUE;

    rorVer = eregmatch(pattern:'>Rails version.[^"]*"value">([0-9.]+)(.?(p|patchlevel) ?([0-9]+))?', string:rcvRes);
    if(!isnull(rorVer[0])) {
      concl = http_report_vuln_url(port:port, url:dir + "/rails/info/properties/", url_only:TRUE);
      if(!isnull(rorVer[1])) {
        if(!isnull(rorVer[2])) {
          rorVersion = rorVer[1] + "." + rorVer[4];
        } else {
          rorVersion = rorVer[1];
        }
      }
    }

    if(rorVersion != "unknown") {
      set_kb_item(name:"rails/detected", value:TRUE);
      set_kb_item(name:"rails/http/detected", value:TRUE);
      set_kb_item(name:"rails/http/port", value:port);
      set_kb_item(name:"rails/http/" + port + "/install", value:port + "#---#" + install + "#---#" + rorVersion + "#---#" + rorVer[0] + "#---#" + concl);
    }

    rubyVersion = "unknown";
    rubyVer = eregmatch(pattern:'>Ruby version.[^"]*"value">([0-9.]+)(.?(p|patchlevel) ?([0-9]+))?', string:rcvRes);
    if(!isnull(rubyVer[0])) {
      concl = http_report_vuln_url(port:port, url:dir + "/rails/info/properties/", url_only:TRUE);
      if(!isnull(rubyVer[1])) {
        if(!isnull(rubyVer[2])) {
          rubyVersion = rubyVer[1] + "." + rubyVer[4];
        } else {
          rubyVersion = rubyVer[1];
        }
      }
    }

    if(rubyVersion != "unknown") {
      set_kb_item(name:"ruby/detected", value:TRUE);
      set_kb_item(name:"ruby/http/detected", value:TRUE);
      set_kb_item(name:"ruby/http/port", value:port);
      set_kb_item(name:"ruby/http/" + port + "/install", value:port + "#---#" + install + "#---#" + rubyVersion + "#---#" + rubyVer[0] + "#---#" + concl);
    }
  }
}

exit(0);