Rancher Detection

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.107247");
  script_version("2023-07-26T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
  script_tag(name:"creation_date", value:"2017-10-16 16:22:38 +0200 (Mon, 16 Oct 2017)");
  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_tag(name:"qod_type", value:"remote_banner");

  script_name("Rancher Detection");

  script_tag(name:"summary", value:"Detection of Rancher Server.

The script sends a connection request to the server and attempts to detect Rancher and to
extract its version.");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Product detection");
  script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");

  script_require_ports("Services/www", 8080);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_xref(name:"URL", value:"http://rancher.com/");

  exit(0);
}

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

port = http_get_port(default: 8080);

url = "/login/";

res = http_get_cache(port: port, item: url);

if (res =~ "^HTTP/1\.[01] 200" && "PL=rancher" >< res && "X-Rancher-Version" >< res)
{
  detected = TRUE;
} else
{
  #Acquire the filename
  res2 = http_get_cache(port: port, item: "/");
  #<script src="/assets/ui-13a646bec41ea4cd3b87642e6dfda3ff.js"></script>
  #<script src="assets/ui-13a646bec41ea4cd3b87642e6dfda3ff.js"></script>
  #<script src="assets/ui.js"></script>
  file = eregmatch(pattern: '<script src="(\\/?assets\\/ui(-[^\\.]+)?\\.js)"', string: res2, icase: TRUE);
  if(!isnull(file[1]))
  {
    filename = file[1];
    if(filename[0] != "/")
      url2 = "/";
    url2 = url2 + filename;

    res3 = http_get_cache(port: port, item: url2);
    if("Rancher" >< res3)
    {
      detected = TRUE;
    }
  }
}

if(detected)
{
  version = "unknown";

  ver = eregmatch(pattern: 'X-Rancher-Version: v([0-9.]+)', string: res);

  if(!isnull(ver[1]))
  {
    version = ver[1];
    set_kb_item(name: "rancher/version", value: version);
  }

  set_kb_item(name: "rancher/detected", value: TRUE);

  #Determine what API endpoint this host uses
  res = http_get_cache(port: port, item: "/v1");
  #Note: If the host uses v3, the /v1 page is not found at all, "type":"error" is an okay response for v1
  if(res =~ 'apiEndpoint:\\s*"/v1"' || '"id":"v1"' >< res || '"type":"error"' >< res) {
    hostType = "v1";
  } else {
    res = http_get_cache(port: port, item: "/v3");
    if('"message":"must authenticate"' >< res)
      hostType = "v3";
  }

  if(!isnull(hostType))
    set_kb_item(name: "rancher/type", value: hostType);

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

  if(!cpe)
    cpe = 'cpe:/a:rancher:rancher';

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

  log_message(data: build_detection_report(app: "Rancher", version: version, install: "/",
              cpe: cpe, concluded: ver[0]),
              port: port);
  exit(0);
}

exit(0);