RHEL 6 : katello-configure (RHSA-2014:1186) - Nessus

Medium Plugin ID: 77661

This page contains detailed information about the RHEL 6 : katello-configure (RHSA-2014:1186) 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: 77661
Name: RHEL 6 : katello-configure (RHSA-2014:1186)
Filename: redhat-RHSA-2014-1186.nasl
Vulnerability Published: 2014-07-28
This Plugin Published: 2014-09-12
Last Modification Time: 2022-03-28
Plugin Version: 1.19
Plugin Type: local
Plugin Family: Red Hat Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Vulnerability Information

Severity: Medium
Vulnerability Published: 2014-07-28
Patch Published: 2014-09-11
CVE [?]: CVE-2014-3120
CPE [?]: cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:katello-configure
Exploited by Malware: True

Synopsis

The remote Red Hat host is missing a security update.

Description

An updated katello-configure package that fixes one security issue is now available for Red Hat Subscription Asset Manager.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The katello-configure package provides the katello-configure script, which configures the Katello installation, and the katello-upgrade script, which handles upgrades between versions.

It was discovered that the default configuration of Elasticsearch enabled dynamic scripting, allowing a remote attacker to execute arbitrary MVEL expressions and Java code via the source parameter passed to _search. (CVE-2014-3120)

All Subscription Asset Manager users are advised to upgrade to this updated package. The update provides a script that modifies the elasticsearch.yml configuration file to disable dynamic scripting. After updating, run the 'katello-configure' command. This will update the elasticsearch.yml configuration file and restart the elasticsearch service.

Solution

Update the affected katello-configure package.

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 RHEL 6 : katello-configure (RHSA-2014:1186) 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 Score Source [?]: CVE-2014-3120
CVSS V2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C

CVSS Base Score:	6.8 (Medium)
Impact Subscore:	6.4
Exploitability Subscore:	8.6
CVSS Temporal Score:	5.9 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.9 (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 Red Hat Security Advisory RHSA-2014:1186. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(77661);
  script_version("1.19");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/28");

  script_cve_id("CVE-2014-3120");
  script_bugtraq_id(67731);
  script_xref(name:"RHSA", value:"2014:1186");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/04/15");

  script_name(english:"RHEL 6 : katello-configure (RHSA-2014:1186)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"An updated katello-configure package that fixes one security issue is
now available for Red Hat Subscription Asset Manager.

Red Hat Product Security has rated this update as having Important
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.

The katello-configure package provides the katello-configure script,
which configures the Katello installation, and the katello-upgrade
script, which handles upgrades between versions.

It was discovered that the default configuration of Elasticsearch
enabled dynamic scripting, allowing a remote attacker to execute
arbitrary MVEL expressions and Java code via the source parameter
passed to _search. (CVE-2014-3120)

All Subscription Asset Manager users are advised to upgrade to this
updated package. The update provides a script that modifies the
elasticsearch.yml configuration file to disable dynamic scripting.
After updating, run the 'katello-configure' command. This will update
the elasticsearch.yml configuration file and restart the elasticsearch
service.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2014:1186");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2014-3120");
  script_set_attribute(attribute:"solution", value:
"Update the affected katello-configure package.");
  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:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-3120");

  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:"2014/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/09/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:katello-configure");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2014-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2014:1186";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL6", reference:"katello-configure-1.4.5.1-3.el6sam")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "katello-configure");
  }
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/redhat-RHSA-2014-1186.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\redhat-RHSA-2014-1186.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/redhat-RHSA-2014-1186.nasl

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How to Run

Here is how to run the RHEL 6 : katello-configure (RHSA-2014:1186) 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 Red Hat Local Security Checks plugin family.
On the right side table select RHEL 6 : katello-configure (RHSA-2014:1186) plugin ID 77661.
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 redhat-RHSA-2014-1186.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a redhat-RHSA-2014-1186.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - redhat-RHSA-2014-1186.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 redhat-RHSA-2014-1186.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

67731

RHSA | Red Hat Security Advisory:

2014:1186

See also:

Similar and related Nessus plugins:

76572 - Elasticsearch 'source' Parameter RCE
84411 - FreeBSD : elasticsearch and logstash -- remote OS command execution via dynamic scripting (43ac9d42-1b9a-11e5-b43d-002590263bf5)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file redhat-RHSA-2014-1186.nasl version 1.19. For more plugins, visit the Nessus Plugin Library.

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RHEL 6 : katello-configure (RHSA-2014:1186) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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