Vulnerabilities > CVE-2016-0181 - 7PK - Security Features vulnerability in Microsoft Windows 10 1511

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
local
low complexity
microsoft
CWE-254
nessus

Summary

Microsoft Windows 10 Gold and 1511 allows local users to bypass the Virtual Secure Mode Hypervisor Code Integrity (HVCI) protection mechanism and perform RWX markings of kernel-mode pages via a crafted application, aka "Hypervisor Code Integrity Security Feature Bypass."

Vulnerable Configurations

Part Description Count
OS
Microsoft
2

Common Weakness Enumeration (CWE)

Msbulletin

bulletin_idMS16-066
bulletin_url
date2016-05-10T00:00:00
impactSecurity Feature Bypass
knowledgebase_id3155451
knowledgebase_url
severityImportant
titleSecurity Update for Virtual Secure Mode

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-066.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by a security feature bypass vulnerability due to certain kernel-mode pages being marked as RWX (Read, Write, Execute) even when Hypervisor Code Integrity (HVCI) is enabled. An attacker can exploit this vulnerability, via a specially crafted application, to bypass code integrity protections.
last seen2020-06-01
modified2020-06-02
plugin id91015
published2016-05-10
reporterThis script is Copyright (C) 2016-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/91015
titleMS16-066: Security Update for Virtual Secure Mode (3155451)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(91015);
  script_version("1.10");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id("CVE-2016-0181");
  script_bugtraq_id(90048);
  script_xref(name:"MSFT", value:"MS16-066");
  script_xref(name:"MSKB", value:"3156421");
  script_xref(name:"MSKB", value:"3156387");
  script_xref(name:"IAVB", value:"2016-B-0088");

  script_name(english:"MS16-066: Security Update for Virtual Secure Mode (3155451)");
  script_summary(english:"Checks the version of ntoskrnl.exe.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a security feature bypass
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by a security feature bypass vulnerability due to
certain kernel-mode pages being marked as RWX (Read, Write, Execute)
even when Hypervisor Code Integrity (HVCI) is enabled. An attacker
can exploit this vulnerability, via a specially crafted application,
to bypass code integrity protections.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-066");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 10.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/05/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/10");

  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:"I");
  script_end_attributes();

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

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

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.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_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS16-066';

kbs = make_list("3156421", "3156387");
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_NOTE);

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

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

if ("Windows 10" >!< productname) 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 (
  # Windows 10 Check
  hotfix_is_vulnerable(os:"10", sp:0, file:"ntoskrnl.exe", version:"10.0.10586.306",   min_version:"10.0.10586.0", dir:"\system32", bulletin:bulletin, kb:"3156421") ||
  hotfix_is_vulnerable(os:"10", sp:0, file:"ntoskrnl.exe", version:"10.0.10240.16841", min_version:"10.0.10240.16000", dir:"\system32", bulletin:bulletin, kb:"3156387")
)
{
  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, 'affected');
}