ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) - Nessus

High Plugin ID: 92949

This page contains detailed information about the ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) 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: 92949
Name: ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check)
Filename: vmware_VMSA-2016-0010_remote.nasl
Vulnerability Published: 2016-03-15
This Plugin Published: 2016-08-12
Last Modification Time: 2021-01-06
Plugin Version: 1.11
Plugin Type: remote
Plugin Family: Misc.
Dependencies: vmware_vsphere_detect.nbin
Required KB Items [?]: Host/VMware/release, Host/VMware/version

Vulnerability Information

Severity: High
Vulnerability Published: 2016-03-15
Patch Published: 2016-03-15
CVE [?]: CVE-2016-5330, CVE-2016-5331
CPE [?]: cpe:/o:vmware:esxi

Synopsis

The remote VMware ESXi host is affected by multiple vulnerabilities.

Description

The remote VMware ESXi host is version 5.0, 5.1, 5.5, or 6.0 and is missing a security patch. It is, therefore, affected by multiple vulnerabilities :

- An arbitrary code execution vulnerability exists in the Shared Folders (HGFS) feature due to improper loading of Dynamic-link library (DLL) files from insecure paths, including the current working directory, which may not be under user control. A remote attacker can exploit this vulnerability, by placing a malicious DLL in the path or by convincing a user into opening a file on a network share, to inject and execute arbitrary code in the context of the current user. (CVE-2016-5330)

- An HTTP header injection vulnerability exists due to improper sanitization of user-supplied input. A remote attacker can exploit this to inject arbitrary HTTP headers and conduct HTTP response splitting attacks. (CVE-2016-5331)

Solution

Apply the appropriate patch as referenced in the vendor advisory.

Note that VMware Tools on Windows-based guests that use the Shared Folders (HGFS) feature must also be updated to completely mitigate CVE-2016-5330.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) vulnerability:

Metasploit: exploit/windows/misc/vmhgfs_webdav_dll_sideload
[DLL Side Loading Vulnerability in VMware Host Guest Client Redirector]
Exploit-DB: exploits/windows/local/41711.rb
[EDB-41711: VMware Host Guest Client Redirector - DLL Side Loading (Metasploit)]

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-2016-5330
CVSS V2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	4.4 (Medium)
Impact Subscore:	6.4
Exploitability Subscore:	3.4
CVSS Temporal Score:	3.6 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.6 (Low)

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

CVSS Base Score:	7.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	1.8
CVSS Temporal Score:	7.2 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.2 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(92949);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2016-5330", "CVE-2016-5331");
  script_bugtraq_id(92323, 92324);
  script_xref(name:"VMSA", value:"2016-0010");

  script_name(english:"ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check)");
  script_summary(english:"Checks the ESXi version and build number.");

  script_set_attribute(attribute:"synopsis", value:
"The remote VMware ESXi host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote VMware ESXi host is version 5.0, 5.1, 5.5, or 6.0 and is
missing a security patch. It is, therefore, affected by multiple
vulnerabilities :

  - An arbitrary code execution vulnerability exists in the
    Shared Folders (HGFS) feature due to improper loading of
    Dynamic-link library (DLL) files from insecure paths,
    including the current working directory, which may not
    be under user control. A remote attacker can exploit
    this vulnerability, by placing a malicious DLL in the
    path or by convincing a user into opening a file on a
    network share, to inject and execute arbitrary code in
    the context of the current user. (CVE-2016-5330)

  - An HTTP header injection vulnerability exists due to
    improper sanitization of user-supplied input. A remote
    attacker can exploit this to inject arbitrary HTTP
    headers and conduct HTTP response splitting attacks.
    (CVE-2016-5331)");
  script_set_attribute(attribute:"see_also", value:"http://www.vmware.com/security/advisories/VMSA-2016-0010.html");
  script_set_attribute(attribute:"see_also", value:"http://kb.vmware.com/kb/2142193");
  script_set_attribute(attribute:"see_also", value:"http://kb.vmware.com/kb/2143976");
  script_set_attribute(attribute:"see_also", value:"http://kb.vmware.com/kb/2141429");
  script_set_attribute(attribute:"see_also", value:"http://kb.vmware.com/kb/2144359");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch as referenced in the vendor advisory.

Note that VMware Tools on Windows-based guests that use the Shared
Folders (HGFS) feature must also be updated to completely mitigate
CVE-2016-5330.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-5330");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'DLL Side Loading Vulnerability in VMware Host Guest Client Redirector');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/12");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_vsphere_detect.nbin");
  script_require_keys("Host/VMware/version", "Host/VMware/release");

  exit(0);
}

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

fixes = make_array(
  '5.0', '3982828',
  '5.1', '3872664',
  '5.5', '4179633',
  '6.0', '3620759'
);

security_only_patches = make_array(
  '5.0', '3982819',
  '5.1', '3872638',
  '5.5', '4179631',
  '6.0', '3568943'
);

rel = get_kb_item_or_exit("Host/VMware/release");
if ("ESXi" >!< rel) audit(AUDIT_OS_NOT, "ESXi");

ver = get_kb_item_or_exit("Host/VMware/version");

match = pregmatch(pattern:"^ESXi? ([0-9]+\.[0-9]+).*$", string:ver);
ver = match[1];

if (ver != '5.0' && ver != '5.1' && ver != '5.5' && ver != '6.0')
  audit(AUDIT_OS_NOT, "ESXi 5.0 / 5.1 / 5.5 / 6.0");

fixed_build = fixes[ver];
security_only_patch = security_only_patches[ver];

if (empty_or_null(fixed_build)) audit(AUDIT_VER_FORMAT, ver);

match = pregmatch(pattern:'^VMware ESXi.*build-([0-9]+)$', string:rel);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, "VMware ESXi", "5.0 / 5.1 / 5.5 / 6.0");

build = int(match[1]);

if (build < fixed_build && build != security_only_patch)
{
  if (!isnull(security_only_patch))
    fixed_build += ' / ' + security_only_patch + ' (security-only fix)';

  report = '\n  ESXi version    : ' + ver +
           '\n  Installed build : ' + build +
           '\n  Fixed build     : ' + fixed_build +
           '\n';

  security_report_v4(port:0, severity:SECURITY_WARNING, extra:report);
}
else audit(AUDIT_INST_VER_NOT_VULN, "VMware ESXi", ver + " build " + build);

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/vmware_VMSA-2016-0010_remote.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\vmware_VMSA-2016-0010_remote.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/vmware_VMSA-2016-0010_remote.nasl

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How to Run

Here is how to run the ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) 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 Misc. plugin family.
On the right side table select ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) plugin ID 92949.
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 vmware_VMSA-2016-0010_remote.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a vmware_VMSA-2016-0010_remote.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - vmware_VMSA-2016-0010_remote.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 vmware_VMSA-2016-0010_remote.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

92323, 92324

VMSA | VMware Security Advisory:

2016-0010

See also:

Similar and related Nessus plugins:

92943 - VMware Fusion 8.1.x < 8.1.1 Shared Folders (HGFS) Guest DLL Hijacking Arbitrary Code Execution (VMSA-2016-0010)
92944 - VMware Player 12.1.x < 12.1.1 Shared Folders (HGFS) Guest DLL Hijacking Arbitrary Code Execution (VMSA-2016-0010) (Linux)
92945 - VMware Player 12.1.x < 12.1.1 Shared Folders (HGFS) Guest DLL Hijacking Arbitrary Code Execution (VMSA-2016-0010)
92946 - VMware Workstation 12.1.x < 12.1.1 Shared Folders (HGFS) Guest DLL Hijacking Arbitrary Code Execution (VMSA-2016-0010) (Linux)
92947 - VMware Workstation 12.1.x < 12.1.1 Shared Folders (HGFS) Guest DLL Hijacking Arbitrary Code Execution (VMSA-2016-0010)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file vmware_VMSA-2016-0010_remote.nasl version 1.11. For more plugins, visit the Nessus Plugin Library.

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ESXi 5.0 / 5.1 / 5.5 / 6.0 Multiple Vulnerabilities (VMSA-2016-0010) (remote check) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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