Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) - Nessus

High Plugin ID: 93317

This page contains detailed information about the Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) 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: 93317
Name: Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005)
Filename: macosx_SecUpd2016-005.nasl
Vulnerability Published: 2016-08-25
This Plugin Published: 2016-09-02
Last Modification Time: 2018-07-14
Plugin Version: 1.10
Plugin Type: local
Plugin Family: MacOS X Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/local_checks_enabled, Host/MacOSX/packages/boms, Host/MacOSX/Version

Vulnerability Information

Severity: High
Vulnerability Published: 2016-08-25
Patch Published: 2016-09-01
CVE [?]: CVE-2016-4655, CVE-2016-4656
CPE [?]: cpe:/o:apple:mac_os_x

Synopsis

The remote host is missing a Mac OS X update that fixes multiple security vulnerabilities.

Description

The remote host is running a version of Mac OS X 10.10.5 or 10.11.6 that is missing a security update. It is therefore, affected by multiple vulnerabilities in the Kernel component :

- An unspecified flaw exists due to improper validation of user-supplied input. An attacker can exploit this, by convincing a user to run a specially crafted application, to disclose kernel memory contents. (CVE-2016-4655)

- An unspecified flaw exists due to improper validation of certain input. An attacker can exploit this, by convincing a user to run a specially crafted application, to execute arbitrary code with kernel level privileges. (CVE-2016-4656)

Solution

Install Security Update 2016-005 (OS X 10.10.5) / 2016-001 (OS X 10.11.6) or later.

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 Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) vulnerability:

Metasploit: exploit/apple_ios/browser/webkit_trident
[WebKit not_number defineProperties UAF]
Exploit-DB: exploits/ios/remote/44836.rb
[EDB-44836: WebKit - not_number defineProperties UAF (Metasploit)]
GitHub: https://github.com/Cryptiiiic/skybreak
[CVE-2016-4655: 8.4.1 Jailbreak using CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/aozhimin/MOSEC-2017
[CVE-2016-4655]
GitHub: https://github.com/dora2-iOS/daibutsu
[CVE-2016-4655]
GitHub: https://github.com/geeksniper/reverse-engineering-toolkit
[CVE-2016-4655]
GitHub: https://github.com/jndok/PegasusX
[CVE-2016-4655: OS X 10.11.6 LPE PoC for CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/liangle1986126z/jndok
[CVE-2016-4655: OS X 10.11.6 LPE PoC for CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/mclown/MOSEC-2017
[CVE-2016-4655]
GitHub: https://github.com/r0ysue/OSG-TranslationTeam
[CVE-2016-4655]
GitHub: https://github.com/tomitokics/br0ke
[CVE-2016-4655: My first iOS 'jailbreak' , using CVE 2016-4655 & CVE 2016-4656]
GitHub: https://github.com/Cryptiiiic/skybreak
[CVE-2016-4656: 8.4.1 Jailbreak using CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/dora2-iOS/daibutsu
[CVE-2016-4656]
GitHub: https://github.com/geeksniper/reverse-engineering-toolkit
[CVE-2016-4656]
GitHub: https://github.com/jndok/PegasusX
[CVE-2016-4656: OS X 10.11.6 LPE PoC for CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/liangle1986126z/jndok
[CVE-2016-4656: OS X 10.11.6 LPE PoC for CVE-2016-4655 / CVE-2016-4656]
GitHub: https://github.com/r0ysue/OSG-TranslationTeam
[CVE-2016-4656]
GitHub: https://github.com/tomitokics/br0ke
[CVE-2016-4656: My first iOS 'jailbreak' , using CVE 2016-4655 & CVE 2016-4656]

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:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	7.7 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.7 (High)

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

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

include("compat.inc");

if (description)
{
  script_id(93317);
  script_version("1.10");
  script_cvs_date("Date: 2018/07/14  1:59:36");

  script_cve_id("CVE-2016-4655", "CVE-2016-4656");
  script_bugtraq_id(92651, 92652);
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-09-01-2");

  script_name(english:"Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005)");
  script_summary(english:"Checks for the presence of Security Update 2016-001 and 2016-005.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a Mac OS X update that fixes multiple
security vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of Mac OS X 10.10.5 or 10.11.6
that is missing a security update. It is therefore, affected by
multiple vulnerabilities in the Kernel component :

  - An unspecified flaw exists due to improper validation of
    user-supplied input. An attacker can exploit this, by
    convincing a user to run a specially crafted
    application, to disclose kernel memory contents.
    (CVE-2016-4655)

  - An unspecified flaw exists due to improper validation of
    certain input. An attacker can exploit this, by
    convincing a user to run a specially crafted
    application, to execute arbitrary code with kernel level
    privileges. (CVE-2016-4656)");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207130");
  # http://lists.apple.com/archives/security-announce/2016/Sep/msg00001.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?faffe2b4");
  script_set_attribute(attribute:"solution", value:
"Install Security Update 2016-005 (OS X 10.10.5) / 2016-001 (OS X
10.11.6) or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'WebKit not_number defineProperties UAF');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/08/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2016-2018 Tenable Network Security, Inc.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms");

  exit(0);
}

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

# Compare 2 patch numbers to determine if patch requirements are satisfied.
# Return true if this patch or a later patch is applied
# Return false otherwise
function check_patch(year, number)
{
  local_var p_split = split(patch, sep:"-");
  local_var p_year  = int( p_split[0]);
  local_var p_num   = int( p_split[1]);

  if (year >  p_year) return TRUE;
  else if (year <  p_year) return FALSE;
  else if (number >=  p_num) return TRUE;
  else return FALSE;
}

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

# Advisory states that update 2016-005 is available for 10.10.5 and update 2016-001 is available for 10.11.6
os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");
if (!ereg(pattern:"Mac OS X 10\.(10\.5|11\.6)([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.10.5 or Mac OS X 10.11.6");

if ( "10.10.5" >< os) patch = "2016-005";
else if ( "10.11.6" >< os ) patch = "2016-001";

packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
sec_boms_report = egrep(pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages);
sec_boms = split(sec_boms_report, sep:'\n');

foreach package (sec_boms)
{
  # Grab patch year and number
  match = eregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package);
  if (empty_or_null(match[1]) || empty_or_null(match[2]))
    continue;

  patch_found = check_patch(year:int(match[1]), number:int(match[2]));
  if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected.");
}

report =  '\n  Missing security update : ' + patch;
report += '\n  Installed security BOMs : ';
if (sec_boms_report) report += str_replace(find:'\n', replace:'\n                            ', string:sec_boms_report);
else report += 'n/a';
report += '\n';

security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/macosx_SecUpd2016-005.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\macosx_SecUpd2016-005.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/macosx_SecUpd2016-005.nasl

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How to Run

Here is how to run the Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) 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 MacOS X Local Security Checks plugin family.
On the right side table select Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) plugin ID 93317.
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 macosx_SecUpd2016-005.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a macosx_SecUpd2016-005.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - macosx_SecUpd2016-005.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 macosx_SecUpd2016-005.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

92651, 92652

APPLE-SA | Apple Security Advisory:

2016-09-01-2

See also:

Similar and related Nessus plugins:

93525 - Apple iOS < 10.0.1 Kernel Memory Information Disclosure (Trident)
93124 - Apple iOS < 9.3.5 Multiple Vulnerabilities (Trident)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file macosx_SecUpd2016-005.nasl version 1.10. For more plugins, visit the Nessus Plugin Library.

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Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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