MS16-076: Security Update for Netlogon (3167691)

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

include("compat.inc");

if (description)
{
  script_id(91604);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/19");

  script_cve_id("CVE-2016-3228");
  script_bugtraq_id(91120);
  script_xref(name:"MSFT", value:"MS16-076");
  script_xref(name:"MSKB", value:"3161561");
  script_xref(name:"MSKB", value:"3162343");
  script_xref(name:"IAVA", value:"2016-A-0152");

  script_name(english:"MS16-076: Security Update for Netlogon (3167691)");
  script_summary(english:"Checks the version of wdigest.dll.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a remote code execution
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by a remote code execution vulnerability due to
improper handling of objects in memory. A domain-authenticated
attacker can exploit this, via a specially crafted Netlogon request to
a domain controller, to execute arbitrary code.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-076");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 2008, 2008 R2,
2012, and 2012 R2.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-3228");

  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:"2016/06/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/14");

  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");
  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 = 'MS16-076';
kbs = make_list(
  "3161561",
  "3162343"
);

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') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
# non-server OSes are not affected
if ("Server" >!< 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 Server 2012 R2
  hotfix_is_vulnerable(os:"6.3", sp:0, file:"wdigest.dll", version:"6.3.9600.18334", min_version:"6.3.9600.16000", dir:"\system32", bulletin:bulletin, kb:"3162343") ||

  # Windows Server 2012
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"wdigest.dll", version:"6.2.9200.21858", min_version:"6.2.9200.16000", dir:"\system32", bulletin:bulletin, kb:"3161561") ||

  # Server 2008 R2
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"wdigest.dll", version:"6.1.7601.23452", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:"3161561") ||

  # Windows Server 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"wdigest.dll", version:"6.0.6002.23974", min_version:"6.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:"3161561") ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"wdigest.dll", version:"6.0.6002.19659", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:"3161561")
)
{
  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, 'affected');
}