FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) - Nessus

Medium Plugin ID: 84411

This page contains detailed information about the FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 84411
Name: FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5)
Filename: freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl
Vulnerability Published: 2014-05-22
This Plugin Published: 2015-06-26
Last Modification Time: 2022-03-28
Plugin Version: 2.9
Plugin Type: local
Plugin Family: FreeBSD Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/FreeBSD/pkg_info, Host/FreeBSD/release, Host/local_checks_enabled

Vulnerability Information

Severity: Medium
Vulnerability Published: 2014-05-22
Patch Published: 2015-06-26
CVE [?]: CVE-2014-3120
CPE [?]: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:elasticsearch, p-cpe:/a:freebsd:freebsd:logstash
Exploited by Malware: True

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Elastic reports :

Vulnerability Summary: In Elasticsearch versions 1.1.x and prior, dynamic scripting is enabled by default. This could allow an attacker to execute OS commands.

Remediation Summary: Disable dynamic scripting.

Logstash 1.4.2 was bundled with Elasticsearch 1.1.1, which is vulnerable to CVE-2014-3120. These binaries are used in Elasticsearch output specifically when using the node protocol. Since a node client joins the Elasticsearch cluster, the attackers could use scripts to execute commands on the host OS using the node client's URL endpoint. With 1.4.3 release, we are packaging Logstash with Elasticsearch 1.5.2 binaries which by default disables the ability to run scripts. This also affects users who are using the configuration option embedded=>true in the Elasticsearch output which starts a local embedded Elasticsearch cluster. This is typically used in development environment and proof of concept deployments. Regardless of this vulnerability, we strongly recommend not using embedded in production.

Note that users of transport and http protocol are not vulnerable to this attack.

Solution

Update the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) vulnerability:

Metasploit: exploit/multi/elasticsearch/script_mvel_rce
[ElasticSearch Dynamic Script Arbitrary Java Execution]
Exploit-DB: exploits/java/remote/33588.rb
[EDB-33588: ElasticSearch Dynamic Script - Arbitrary Java Execution (Metasploit)]
Exploit-DB: exploits/multiple/webapps/33370.html
[EDB-33370: ElasticSearch - Remote Code Execution]
GitHub: https://github.com/0ps/pocassistdb
[CVE-2014-3120]
GitHub: https://github.com/ACIC-Africa/metasploitable3
[CVE-2014-3120]
GitHub: https://github.com/Karma47/Cybersecurity_base_project_2
[CVE-2014-3120]
GitHub: https://github.com/NCSU-DANCE-Research-Group/CDL
[CVE-2014-3120]
GitHub: https://github.com/SexyBeast233/SecBooks
[CVE-2014-3120]
GitHub: https://github.com/ahm3dhany/IDS-Evasion
[CVE-2014-3120]
GitHub: https://github.com/amcai/myscan
[CVE-2014-3120]
GitHub: https://github.com/bigblackhat/oFx
[CVE-2014-3120]
GitHub: https://github.com/echohtp/ElasticSearch-CVE-2014-3120
[CVE-2014-3120: POC Code to exploite CVE-2014-3120]
GitHub: https://github.com/fengjixuchui/RedTeamer
[CVE-2014-3120]
GitHub: https://github.com/hktalent/myhktools
[CVE-2014-3120]
GitHub: https://github.com/jeffgeiger/es_inject
[CVE-2014-3120: Demonstration of CVE-2014-3120]
GitHub: https://github.com/jweny/pocassistdb
[CVE-2014-3120]
GitHub: https://github.com/maasikai/cybersecuritybase-project-2
[CVE-2014-3120]
GitHub: https://github.com/paralax/awesome-honeypots
[CVE-2014-3120]
GitHub: https://github.com/webshell1414/honey
[CVE-2014-3120]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:M/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

CVSS Base Score:	6.8 (Medium)
Impact Subscore:	6.4
Exploitability Subscore:	8.6
CVSS Temporal Score:	5.3 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.3 (Medium)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2019 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(84411);
  script_version("2.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/28");

  script_cve_id("CVE-2014-3120");
  script_bugtraq_id(67731);
  script_xref(name:"EDB-ID", value:"33370");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/04/15");

  script_name(english:"FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5)");

  script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related
updates.");
  script_set_attribute(attribute:"description", value:
"Elastic reports :

Vulnerability Summary: In Elasticsearch versions 1.1.x and prior,
dynamic scripting is enabled by default. This could allow an attacker
to execute OS commands.

Remediation Summary: Disable dynamic scripting.

Logstash 1.4.2 was bundled with Elasticsearch 1.1.1, which is
vulnerable to CVE-2014-3120. These binaries are used in Elasticsearch
output specifically when using the node protocol. Since a node client
joins the Elasticsearch cluster, the attackers could use scripts to
execute commands on the host OS using the node client's URL endpoint.
With 1.4.3 release, we are packaging Logstash with Elasticsearch 1.5.2
binaries which by default disables the ability to run scripts. This
also affects users who are using the configuration option
embedded=>true in the Elasticsearch output which starts a local
embedded Elasticsearch cluster. This is typically used in development
environment and proof of concept deployments. Regardless of this
vulnerability, we strongly recommend not using embedded in production.

Note that users of transport and http protocol are not vulnerable to
this attack.");
  script_set_attribute(attribute:"see_also", value:"https://www.elastic.co/community/security");
  script_set_attribute(attribute:"see_also", value:"https://www.elastic.co/blog/elasticsearch-1-2-0-released");
  script_set_attribute(attribute:"see_also", value:"https://www.elastic.co/blog/logstash-1-4-3-released");
  script_set_attribute(attribute:"see_also", value:"https://bouk.co/blog/elasticsearch-rce/");
  # https://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?27fc4ce3");
  # https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearch
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6702767b");
  # https://vuxml.freebsd.org/freebsd/43ac9d42-1b9a-11e5-b43d-002590263bf5.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a8f9d692");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ElasticSearch Dynamic Script Arbitrary Java Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:elasticsearch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:logstash");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"FreeBSD Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2015-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"elasticsearch<1.2.0")) flag++;
if (pkg_test(save_report:TRUE, pkg:"logstash<1.4.3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl

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How to Run

Here is how to run the FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select FreeBSD Local Security Checks plugin family.
On the right side table select FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) plugin ID 84411.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

67731

See also:

Similar and related Nessus plugins:

76572 - Elasticsearch 'source' Parameter RCE
77661 - RHEL 6 : katello-configure (RHSA-2014:1186)
84409 - FreeBSD : elasticsearch -- remote OS command execution via Groovy scripting engine (026759e0-1ba3-11e5-b43d-002590263bf5)
18840 - FreeBSD : awstats -- remote command execution vulnerability (0f5a2b4d-694b-11d9-a9e7-0001020eed82)
95393 - FreeBSD : Roundcube -- arbitrary command execution (125f5958-b611-11e6-a9a5-b499baebfeaf)
80148 - FreeBSD : git -- Arbitrary command execution on case-insensitive filesystems (1d567278-87a5-11e4-879c-000c292ee6b8)
133432 - FreeBSD : libssh -- Unsanitized location in scp could lead to unwanted command execution (1e7fa41b-f6ca-4fe8-bd46-0e176b42b14f)
34496 - FreeBSD : wordpress -- snoopy '_httpsrequest()' shell command execution vulnerability (3a4a3e9c-a1fe-11dd-81be-001c2514716c)
35336 - FreeBSD : verlihub -- insecure temporary file usage and arbitrary command execution (58997463-e012-11dd-a765-0030843d3802)
92913 - FreeBSD : FreeBSD -- Remote command execution in ftp(1) (7488378d-6007-11e6-a6c3-14dae9d210b8)
96472 - FreeBSD : Ansible -- Command execution on Ansible controller from host (a93c3287-d8fd-11e6-be5c-001fbc0f280f)
36281 - FreeBSD : twiki -- arbitrary shell command execution (b4af3ede-36e9-11d9-a9e7-0001020eed82)
96118 - FreeBSD : vim -- arbitrary command execution (c11629d3-c8ad-11e6-ae1b-002590263bf5)
35295 - FreeBSD : xterm -- DECRQSS remote command execution vulnerability (d5e1aac8-db0b-11dd-ae30-001cc0377035)
19146 - FreeBSD : phpbb -- arbitrary command execution and other vulnerabilities (e3cf89f0-53da-11d9-92b7-ceadd4ac2edd)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file freebsd_pkg_43ac9d421b9a11e5b43d002590263bf5.nasl version 2.9. For more plugins, visit the Nessus Plugin Library.

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FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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