MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) - Nessus

High Plugin ID: 47750

This page contains detailed information about the MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) 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: 47750
Name: MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP)
Filename: smb_kb_2286198.nasl
Vulnerability Published: 2010-07-15
This Plugin Published: 2010-07-18
Last Modification Time: 2018-11-15
Plugin Version: 1.25
Plugin Type: local
Plugin Family: Windows
Dependencies: smb_hotfixes.nasl, smb_nt_ms10-046.nasl
Required KB Items [?]: SMB/Registry/Enumerated, SMB/WindowsVersion

Vulnerability Information

Severity: High
Vulnerability Published: 2010-07-15
Patch Published: N/A
CVE [?]: CVE-2010-2568
CPE [?]: cpe:/o:microsoft:windows
Exploited by Malware: True
In the News: True

Synopsis

It may be possible to execute arbitrary code on the remote Windows host using a malicious shortcut file.

Description

Windows Shell does not properly validate the parameters of a shortcut file when loading its icon. Attempting to parse the icon of a specially crafted shortcut file can result in arbitrary code execution. A remote attacker could exploit this by tricking a user into viewing a malicious shortcut file via Windows Explorer, or any other application that parses the shortcut's icon. This can also be exploited by an attacker who tricks a user into inserting removable media containing a malicious shortcut (e.g. CD, USB drive), and AutoPlay is enabled.

EASYHOOKUP is one of multiple Equation Group vulnerabilities and exploits disclosed on 2017/04/14 by a group known as the Shadow Brokers.

Solution

Either apply the MS10-046 patch or disable the displaying of shortcut icons (refer to the Microsoft advisory).

Public Exploits

Target Network Port(s): 139, 445
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) vulnerability:

Metasploit: exploit/windows/browser/ms10_046_shortcut_icon_dllloader
[Microsoft Windows Shell LNK Code Execution]
Metasploit: exploit/windows/fileformat/ms15_020_shortcut_icon_dllloader
[Microsoft Windows Shell LNK Code Execution]
Metasploit: exploit/windows/smb/ms10_046_shortcut_icon_dllloader
[Microsoft Windows Shell LNK Code Execution]
Metasploit: exploit/windows/smb/ms15_020_shortcut_icon_dllloader
[Microsoft Windows Shell LNK Code Execution]
Metasploit: post/windows/gather/forensics/fanny_bmp_check
[FannyBMP or DementiaWheel Detection Registry Check]
Exploit-DB: exploits/windows/local/14403.txt
[EDB-14403: Microsoft Windows - Automatic .LNK Shortcut File Code Execution]
Exploit-DB: exploits/windows/remote/16574.rb
[EDB-16574: Microsoft Windows - Shell LNK Code Execution (MS10-046) (Metasploit)]
GitHub: https://github.com/jisosomppi/pentesting
[CVE-2010-2568]
GitHub: https://github.com/offensive-security/exploitdb-bin-sploits/blob/master/bin-sploits/14403.rar
[EDB-14403]
Immunity Canvas: CANVAS

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:H/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	8.1 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.1 (High)

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

CVSS Base Score:	8.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	2.8
CVSS Temporal Score:	8.4 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.4 (High)

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Plugin Source

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


include("compat.inc");


if (description)
{
  script_id(47750);
  script_version("1.25");
  script_cvs_date("Date: 2018/11/15 20:50:28");

  script_cve_id("CVE-2010-2568");
  script_bugtraq_id(41732);
  script_xref(name:"CERT", value:"940193");
  script_xref(name:"EDB-ID", value:"14403");
  script_xref(name:"MSFT", value:"MS10-046");
  script_xref(name:"Secunia", value:"40647");
  script_xref(name:"MSKB", value:"2286198");

  script_name(english:"MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP)");
  script_summary(english:"Checks if displaying shortcut icons has been disabled");

  script_set_attribute(attribute:"synopsis", value:
"It may be possible to execute arbitrary code on the remote Windows
host using a malicious shortcut file.");
  script_set_attribute(attribute:"description", value:
"Windows Shell does not properly validate the parameters of a shortcut
file when loading its icon. Attempting to parse the icon of a
specially crafted shortcut file can result in arbitrary code
execution. A remote attacker could exploit this by tricking a user
into viewing a malicious shortcut file via Windows Explorer, or any
other application that parses the shortcut's icon. This can also be
exploited by an attacker who tricks a user into inserting removable
media containing a malicious shortcut (e.g. CD, USB drive), and
AutoPlay is enabled.

EASYHOOKUP is one of multiple Equation Group vulnerabilities and
exploits disclosed on 2017/04/14 by a group known as the Shadow
Brokers.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityAdvisories/2010/2286198");
  script_set_attribute(
    attribute:"see_also",
    value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-046"
  );
  script_set_attribute(attribute:"solution", value:
"Either apply the MS10-046 patch or disable the displaying of shortcut
icons (refer to the Microsoft advisory).");
  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:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Microsoft Windows Shell LNK Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/07/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/07/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl", "smb_nt_ms10-046.nasl");
  script_require_keys("SMB/Registry/Enumerated", "SMB/WindowsVersion");
  script_require_ports(139, 445);

  exit(0);
}


include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");
include("audit.inc");


get_kb_item_or_exit('SMB/WindowsVersion');
if (hotfix_check_sp(xp:4, win2003:3, vista:3, win7:1) <= 0)
  exit(0, 'Host is not affected based on its version / service pack.');
if (!get_kb_item("SMB/Missing/MS10-046")) exit(0, "The host is not affected because the 'SMB/Missing/MS10-046' KB item is missing.");

# Connect to the appropriate share.
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();
port    =  kb_smb_transport();

if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');

rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
  NetUseDel();
  exit(1, "Can't connect to IPC$ share.");
}

hkcr = RegConnectRegistry(hkey:HKEY_CLASS_ROOT);
if (isnull(hkcr))
{
  NetUseDel();
  exit(1, "Can't connect to remote registry.");
}

keys = make_list(
  'lnkfile\\shellex\\IconHandler',
  'piffile\\shellex\\IconHandler'
);

vuln = make_array();

foreach key (keys)
{
  key_h = RegOpenKey(handle:hkcr, key:key, mode:MAXIMUM_ALLOWED);
  icon_handler = NULL;

  if (!isnull(key_h))
  {
    value = RegQueryValue(handle:key_h, item:NULL);
    if (!isnull(value[1])) vuln[key] = value[1];
    RegCloseKey(handle:key_h);
  }
}

RegCloseKey(handle:hkcr);
NetUseDel();

if (max_index(keys(vuln)) > 0)
{
  if (report_verbosity > 0)
  {
    if (max_index(keys(vuln)) > 1) s = 'ies';
    else s = 'y';
    report =
      '\nAccording to the following registry entr'+s+', displaying shortcut' +
      '\nicons has not been disabled :\n';

    foreach key (keys(vuln))
    {
      report +=
        '\n  Key   : HKEY_CLASS_ROOT\\' + key +
        '\n  Value : ' + vuln[key] + '\n';
    }

    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else exit(0, 'Displaying shortcut icons has been disabled.');

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/smb_kb_2286198.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\smb_kb_2286198.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/smb_kb_2286198.nasl

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How to Run

Here is how to run the MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) 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 Windows plugin family.
On the right side table select MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) plugin ID 47750.
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 smb_kb_2286198.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a smb_kb_2286198.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - smb_kb_2286198.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 smb_kb_2286198.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

41732

MSKB | Microsoft Knowledge Base:

2286198

MSFT | Microsoft Security Bulletin:

MS10-046

CERT | Computer Emergency Response Team:

940193

Secunia Advisory:

40647

See also:

Similar and related Nessus plugins:

48216 - MS10-046: Vulnerability in Windows Shell Could Allow Remote Code Execution (2286198) (EASYHOOKUP)
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81735 - MS15-020: Vulnerabilities in Microsoft Windows Could Allow Remote Code Execution (3041836) (EASYHOOKUP)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file smb_kb_2286198.nasl version 1.25. For more plugins, visit the Nessus Plugin Library.

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MS KB2286198: Windows Shell Shortcut Icon Parsing Arbitrary Code Execution (EASYHOOKUP) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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