Apache Hadoop 'Secure Mode' Disabled (HTTP)

# 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

CPE = "cpe:/a:apache:hadoop";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108173");
  script_version("2026-01-28T05:49:43+0000");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2026-01-28 05:49:43 +0000 (Wed, 28 Jan 2026)");
  script_tag(name:"creation_date", value:"2017-06-06 15:24:50 +0200 (Tue, 06 Jun 2017)");
  script_name("Apache Hadoop 'Secure Mode' Disabled (HTTP)");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_apache_hadoop_http_detect.nasl");
  script_require_ports("Services/www", 50070);
  script_mandatory_keys("apache/hadoop/securemode/http/disabled");

  script_tag(name:"summary", value:"Apache Hadoop has 'Secure Mode' disabled.");

  script_tag(name:"vuldetect", value:"Checks the status page of Apache Hadoop via HTTP if
  'Secure Mode' is disabled.");

  script_tag(name:"insight", value:"The flaw exists due to a disabled 'Secure Mode' which doesn't
  require authentication for users.");

  script_tag(name:"impact", value:"Successful exploitation might allow a remote attacker to gain
  unauthenticated access to data saved within this Hadoop instance.");

  script_tag(name:"affected", value:"Apache Hadoop instances with 'Secure Mode' disabled.");

  script_tag(name:"solution", value:"Configure 'Secure Mode' by following the Apache Hadoop
  documentation.");

  script_xref(name:"URL", value:"https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SecureMode.html");
  script_xref(name:"URL", value:"https://blog.shodan.io/the-hdfs-juggernaut/");

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

  exit(0);
}

include("host_details.inc");

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

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

secureModeDisabled = get_kb_item( "apache/hadoop/securemode/http/" + port + "/disabled" );
if( secureModeDisabled ) {
  security_message( port:port );
  exit(0);
}

exit( 99 );