Vulnerabilities > CVE-2016-7220 - Information Exposure vulnerability in Microsoft Windows 10

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
local
low complexity
microsoft
CWE-200
nessus

Summary

Virtual Secure Mode in Microsoft Windows 10 allows local users to obtain sensitive information via a crafted application, aka "Virtual Secure Mode Information Disclosure Vulnerability."

Vulnerable Configurations

Part Description Count
OS
Microsoft
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-137.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An information disclosure vulnerability exists in Windows Virtual Secure Mode due to improper handling of objects in memory. An authenticated, remote attacker can exploit this, via a specially crafted application, to disclose sensitive information. (CVE-2016-7220) - A denial of service vulnerability exists in the Local Security Authority Subsystem Service (LSASS) when handling specially crafted requests. An authenticated, remote attacker can exploit this to cause the host to become non-responsive. (CVE-2016-7237) - An elevation of privilege vulnerability exists due to improper handling of NTLM password change requests. An authenticated, remote attacker can exploit this, via a specially crafted application, to gain administrative privileges. (CVE-2016-7238)
last seen2020-06-01
modified2020-06-02
plugin id94638
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/94638
titleMS16-137: Security Update for Windows Authentication Methods (3199173)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94638);
  script_version("1.15");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id("CVE-2016-7220", "CVE-2016-7237", "CVE-2016-7238");
  script_bugtraq_id(94036, 94040, 94045);
  script_xref(name:"MSFT", value:"MS16-137");
  script_xref(name:"MSKB", value:"3197867");
  script_xref(name:"MSKB", value:"3197868");
  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:"3198510");
  script_xref(name:"MSKB", value:"3198585");
  script_xref(name:"MSKB", value:"3198586");
  script_xref(name:"MSKB", value:"3200970");

  script_name(english:"MS16-137: Security Update for Windows Authentication Methods (3199173)");
  script_summary(english:"Checks the file versions.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by multiple vulnerabilities :

  - An information disclosure vulnerability exists in
    Windows Virtual Secure Mode due to improper handling of
    objects in memory. An authenticated, remote attacker can
    exploit this, via a specially crafted application, to
    disclose sensitive information. (CVE-2016-7220)

  - A denial of service vulnerability exists in the Local
    Security Authority Subsystem Service (LSASS) when
    handling specially crafted requests. An authenticated,
    remote attacker can exploit this to cause the host to
    become non-responsive. (CVE-2016-7237)

  - An elevation of privilege vulnerability exists due to
    improper handling of NTLM password change requests. An
    authenticated, remote attacker can exploit this, via a
    specially crafted application, to gain administrative
    privileges. (CVE-2016-7238)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-137");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows Vista, 2008, 7,
2008 R2, 2012, 8.1, RT 8.1, 2012 R2, 10, and 2016.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:L/UI:N/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-2016-7238");

  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:"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_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("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-137';
kbs = make_list('3197867',
                '3197868',
                '3197873',
                '3197874',
                '3197876',
                '3197877',
                '3198510',
                '3198585',
                '3198586',
                '3200970');

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

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

if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  # Vista / Windows Server 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"msv1_0.dll", version:"6.0.6002.24025", min_version:"6.0.6002.23000", dir:"\system32", bulletin:bulletin, kb:"3198510") ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"msv1_0.dll", version:"6.0.6002.19701", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:"3198510") ||
  # Windows 7 / Server 2008 R2
  smb_check_rollup(os:"6.1", sp:1, rollup_date:"11_2016", bulletin:bulletin, rollup_kb_list:make_list(3197867, 3197868)) ||
  # Windows Server 2012
  smb_check_rollup(os:"6.2", sp:0, rollup_date:"11_2016", bulletin:bulletin, rollup_kb_list:make_list(3197876, 3197877)) ||
  # Windows 8.1 / Windows Server 2012 R2
  smb_check_rollup(os:"6.3", sp:0, rollup_date:"11_2016", bulletin:bulletin, rollup_kb_list:make_list(3197873, 3197874)) ||
  # Windows 10
  smb_check_rollup(os:"10", sp:0, os_build:"10240", rollup_date:"11_2016", bulletin:bulletin, rollup_kb_list:make_list(3198585)) ||
  smb_check_rollup(os:"10", sp:0, os_build:"10586", rollup_date:"11_2016", bulletin:bulletin, rollup_kb_list:make_list(3198586)) ||
  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_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}