Vulnerabilities > CVE-2016-7223 - Improper Access Control vulnerability in Microsoft products

047910
CVSS 3.6 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
NONE
local
low complexity
microsoft
CWE-284
nessus

Summary

Virtual Hard Disk Driver in Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 does not properly restrict access to files, which allows local users to gain privileges via a crafted application, aka "VHD Driver Elevation of Privilege Vulnerability."

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Signature Spoofing by Key Theft
    An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

Msbulletin

bulletin_idMS16-138
bulletin_url
date2016-11-08T00:00:00
impactElevation of Privilege
knowledgebase_id3199647
knowledgebase_url
severityImportant
titleSecurity Update to Microsoft Virtual Hard Drive

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-138.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple elevation of privilege vulnerabilities in the Windows Virtual Hard Disk Driver due to improper handling of user access to certain files. A local attacker can exploit these, via a specially crafted application, to manipulate files not intended to be available to the user.
last seen2020-06-01
modified2020-06-02
plugin id94639
published2016-11-08
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/94639
titleMS16-138: Security Update for Microsoft Virtual Hard Disk Driver (3199647)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94639);
  script_version("1.11");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id(
    "CVE-2016-7223",
    "CVE-2016-7224",
    "CVE-2016-7225",
    "CVE-2016-7226"
  );
  script_bugtraq_id(
    94003,
    94016,
    94017,
    94018
  );
  script_xref(name:"MSFT", value:"MS16-138");
  script_xref(name:"MSKB", value:"3197873");
  script_xref(name:"MSKB", value:"3197874");
  script_xref(name:"MSKB", value:"3197876");
  script_xref(name:"MSKB", value:"3197877");
  script_xref(name:"MSKB", value:"3198585");
  script_xref(name:"MSKB", value:"3198586");
  script_xref(name:"MSKB", value:"3200970");
  script_xref(name:"IAVA", value:"2016-A-0317");

  script_name(english:"MS16-138: Security Update for Microsoft Virtual Hard Disk Driver (3199647)");
  script_summary(english:"Checks for the November 2016 Rollup.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple elevation of privilege
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by multiple elevation of privilege vulnerabilities
in the Windows Virtual Hard Disk Driver due to improper handling of
user access to certain files. A local attacker can exploit these, via
a specially crafted application, to manipulate files not intended to
be available to the user.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-138");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 2012, 8.1, RT 8.1,
2012 R2, 10, and 2016.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7226");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/08");

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

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

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl", "smb_check_rollup.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

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

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-138';
kbs = make_list(
  '3197873',
  '3197874',
  '3197876',
  '3197877',
  '3198585',
  '3198586',
  '3200970'
);

if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_NOTE);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

if (hotfix_check_sp_range(win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

# Windows 8 EOL
productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Windows 8" >< productname && "8.1" >!< productname) audit(AUDIT_OS_SP_NOT_VULN);

if (
  # 8.1 / 2012 R2
  smb_check_rollup(os:"6.3",
                   sp:0,
                   rollup_date: "11_2016",
                   bulletin:bulletin,
                   rollup_kb_list:make_list(3197873, 3197874)) ||
  # 2012
  smb_check_rollup(os:"6.2",
                   sp:0,
                   rollup_date: "11_2016",
                   bulletin:bulletin,
                   rollup_kb_list:make_list(3197876, 3197877)) ||
  # 10 (1507)
  smb_check_rollup(os:"10",
                   sp:0,
                   os_build:"10240",
                   rollup_date: "11_2016",
                   bulletin:bulletin,
                   rollup_kb_list:make_list(3198585)) ||
  # 10 (1511)
  smb_check_rollup(os:"10",
                   sp:0,
                   os_build:"10586",
                   rollup_date: "11_2016",
                   bulletin:bulletin,
                   rollup_kb_list:make_list(3198586)) ||
  # 10 (1607) / 2016
  smb_check_rollup(os:"10",
                   sp:0,
                   os_build:"14393",
                   rollup_date: "11_2016",
                   bulletin:bulletin,
                   rollup_kb_list:make_list(3200970))
)
{
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_note();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}