Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities - Nessus

Critical Plugin ID: 104850

This page contains detailed information about the Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities 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: 104850
Name: Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities
Filename: splunk_7001.nasl
Vulnerability Published: 2017-11-14
This Plugin Published: 2017-11-29
Last Modification Time: 2022-01-26
Plugin Version: 1.6
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: splunkd_detect.nasl, splunk_web_detect.nasl
Required KB Items [?]: installed_sw/Splunk, Settings/ParanoidReport

Vulnerability Information

Severity: Critical
Vulnerability Published: 2017-11-14
Patch Published: 2017-11-14
CVE [?]: CVE-2017-17067
CPE [?]: cpe:/a:splunk:splunk

Synopsis

An application running on the remote web server is affected by multiple SAML implementation vulnerabilities.

Description

According to its self-reported version number, the version of Splunk running on the remote web server is 6.3.x prior to 6.3.12, 6.4.x prior to 6.4.9, 6.5.x prior to 6.5.6, 6.6.x prior to 6.6.3.2 or 6.6.4, or 7.0.x prior to 7.0.0.1. It is, therefore, affected by multiple SAML implementation vulnerabilities.

Note that this only affects Splunk Enterprise components running Splunk Web with SAML authentication enabled.

Solution

Upgrade to Splunk Enterprise version 6.3.12 / 6.4.9 / 6.5.6 / 6.6.3.2 / 6.6.4 / 7.0.0.1 or later.

Public Exploits

Target Network Port(s): 8000, 8089
Target Asset(s): Services/www
Exploit Available: True (GitHub)
Exploit Ease: No exploit is required

Here's the list of publicly known exploits and PoCs for verifying the Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities vulnerability:

GitHub: https://github.com/tsumarios/Splunk-Defensive-Analysis
[CVE-2017-17067]

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:L/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	7.4 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.4 (High)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	8.5 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.5 (High)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(104850);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/01/26");

  script_cve_id("CVE-2017-17067");
  script_xref(name:"IAVB", value:"2017-B-0163-S");

  script_name(english:"Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities");
  script_summary(english:"Checks the version of Splunk Enterprise.");

  script_set_attribute(attribute:"synopsis", value:
"An application running on the remote web server is affected by
multiple SAML implementation vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the version of Splunk
running on the remote web server is 6.3.x prior to 6.3.12, 6.4.x prior
to 6.4.9, 6.5.x prior to 6.5.6, 6.6.x prior to 6.6.3.2 or 6.6.4, or
7.0.x prior to 7.0.0.1. It is, therefore, affected by multiple SAML
implementation vulnerabilities.

Note that this only affects Splunk Enterprise components running
Splunk Web with SAML authentication enabled.");
  script_set_attribute(attribute:"see_also", value:"https://www.splunk.com/view/SP-CAAAP3K");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Splunk Enterprise version 6.3.12 / 6.4.9 / 6.5.6 / 6.6.3.2
/ 6.6.4 / 7.0.0.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:splunk:splunk");
  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2017-2022 Tenable Network Security, Inc.");

  script_dependencies("splunkd_detect.nasl", "splunk_web_detect.nasl");
  script_require_ports("Services/www", 8089, 8000);
  script_require_keys("installed_sw/Splunk", "Settings/ParanoidReport");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("install_func.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

app = "Splunk";

get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:8000, embedded:TRUE);

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);

dir = install['path'];
ver = install['version'];
license = install['License'];
if (isnull(license)) exit(1, "Unable to retrieve the Splunk license type.");

fix = FALSE;

install_url = build_url(qs:dir, port:port);

if (license == "Enterprise")
{
  if (ver =~ "^6\.3($|[^0-9])")
    fix = '6.3.12';
  else if (ver =~ "^6\.4($|[^0-9])")
    fix = '6.4.9';
  else if (ver =~ "^6\.5($|[^0-9])")
    fix = '6.5.6';
  else if (ver =~ "^6\.6($|[^0-9])")
    fix = '6.6.3.2';
  else if (ver =~ "^7\.0($|[^0-9])")
    fix = '7.0.0.1';
}

if (fix && ver_compare(ver:ver, fix:fix, strict:FALSE) < 0)
{
  if (fix == '6.6.3.2')
    fix = '6.6.3.2 or 6.6.4';

  order = make_list("URL", "Installed version", "Fixed version");
  report = make_array(
    order[0], install_url,
    order[1], ver + " " + license,
    order[2], fix + " " + license
  );
  report = report_items_str(report_items:report, ordered_fields:order);

  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE);
  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url, ver + " " + license);

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/splunk_7001.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\splunk_7001.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/splunk_7001.nasl

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How to Run

Here is how to run the Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities 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 CGI abuses plugin family.
On the right side table select Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities plugin ID 104850.
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 splunk_7001.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a splunk_7001.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - splunk_7001.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 splunk_7001.nasl -t <IP/HOST>

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References

IAVB | Information Assurance Vulnerability Bulletin:

2017-B-0163-S

See also:

Similar and related Nessus plugins:

66835 - Splunk 5.0.x < 5.0.3 Multiple Vulnerabilities
79722 - Splunk Enterprise 6.0.x < 6.0.6 Multiple Vulnerabilities
79723 - Splunk Enterprise 6.0.x < 6.0.7 Multiple Vulnerabilities (POODLE)
79724 - Splunk Enterprise 5.0.x < 5.0.10 / 6.1.x < 6.1.4 Multiple Vulnerabilities
83992 - Splunk Enterprise 5.0.x < 5.0.13 / 6.0.x < 6.0.9 / 6.1.x < 6.1.8 OpenSSL Vulnerabilities (FREAK)
81812 - Splunk Enterprise 6.2.x < 6.2.2 Multiple Vulnerabilities (FREAK)
85581 - Splunk Enterprise < 5.0.14 / 6.0.10 / 6.1.9 / 6.2.5 or Splunk Light < 6.2.5 Multiple Vulnerabilities
90705 - Splunk Enterprise < 5.0.15 / 6.0.11 / 6.1.10 / 6.2.9 / 6.3.3.4 or Splunk Light < 6.2.9 / 6.3.3.4 Multiple Vulnerabilities (DROWN)
92790 - Splunk Enterprise < 5.0.16 / 6.0.12 / 6.1.11 / 6.2.11 / 6.3.6 / 6.4.2 or Splunk Light < 6.4.2 Multiple Vulnerabilities
94932 - Splunk Enterprise < 5.0.17 / 6.0.13 / 6.1.12 / 6.2.12 / 6.3.8 / 6.4.4 or Splunk Light < 6.5.0 Multiple Vulnerabilities
97100 - Splunk Enterprise < 5.0.17 / 6.0.13 / 6.1.12 / 6.2.13 / 6.3.9 / 6.4.5 / 6.5.2 or Splunk Light < 6.5.2 Multiple Vulnerabilities
99235 - Splunk Enterprise < 5.0.18 / 6.0.14 / 6.1.13 / 6.2.13.1 / 6.3.10 / 6.4.6 / 6.5.3 / Splunk Light < 6.5.3 Multiple Vulnerabilities
158383 - Splunk Enterprise 8.1.x < 8.1.7.2 / 8.2.x < 8.2.3.3 Log4j
121164 - Splunk Information Disclosure Vulnerability (SP-CAAAP5E)
121163 - Splunk Information Exposure (SP-CAAAP5E
79721 - Splunk Enterprise 5.0.x < 5.0.11 Multiple Vulnerabilities (POODLE)
73575 - Splunk 6.x < 6.0.3 Multiple OpenSSL Vulnerabilities (Heartbleed)
76528 - Splunk Enterprise 4.3.x / 5.0.x < 5.0.9 / 6.0.x < 6.0.5 / 6.1.x < 6.1.2 Multiple OpenSSL Vulnerabilities
160471 - Splunk Enterprise 8.1.x < 8.1.7.2 / 8.2.x < 8.2.3.3 Log4j (macOS)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file splunk_7001.nasl version 1.6. For more plugins, visit the Nessus Plugin Library.

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Splunk Enterprise 6.3.x < 6.3.12 / 6.4.x < 6.4.9 / 6.5.x < 6.5.6 / 6.6 < 6.6.3.2 or 6.6.4 / 7.0.x < 7.0.0.1 Multiple SAML Implementation Vulnerabilities - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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