Microsoft Windows Common Log File System Driver Information Disclosure Vulnerability (3207328)

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.810310");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2016-7295");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-05-08 22:03:00 +0000 (Wed, 08 May 2019)");
  script_tag(name:"creation_date", value:"2016-12-14 09:20:01 +0530 (Wed, 14 Dec 2016)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Windows Common Log File System Driver Information Disclosure Vulnerability (3207328)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Bulletin MS16-153.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists due to the Windows
  Common Log File System (CLFS) driver improperly handles objects in memory.");

  script_tag(name:"impact", value:"Successful exploitation will allow an
  attacker to run a specially crafted application to bypass security
  measures on the affected system allowing further exploitation.");

  script_tag(name:"affected", value:"- Microsoft Windows Vista x32/x64 Service Pack 2

  - Microsoft Windows Server 2008 x32/x64 Service Pack 2

  - Microsoft Windows 7 x32/x64 Service Pack 1

  - Microsoft Windows Server 2008 R2 x64 Service Pack 1

  - Microsoft Windows 8.1 x32/x64

  - Microsoft Windows Server 2012/2012R2

  - Microsoft Windows 10 x32/x64

  - Microsoft Windows Server 2016 x64

  - Microsoft Windows 10 Version 1511 x32/x64

  - Microsoft Windows 10 Version 1607 x32/x64");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/kb/3207328");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/94787");
  script_xref(name:"URL", value:"https://technet.microsoft.com/en-us/library/security/MS16-153");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  script_xref(name:"URL", value:"https://technet.microsoft.com/library/security/MS16-0153");

  exit(0);
}

include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(hotfix_check_sp(winVista:3, winVistax64:3, win7:2, win7x64:2, win2008:3, win2008x64:3,
                   win2008r2:2, win2012:1, win2012R2:1, win8_1:1, win8_1x64:1, win10:1,
                   win10x64:1, win2016:1) <= 0){
  exit(0);
}

sysPath = smb_get_system32root();
if(!sysPath ){
  exit(0);
}

clfVer = fetch_file_version(sysPath:sysPath, file_name:"drivers\clfs.sys");
clfVer1 = fetch_file_version(sysPath:sysPath, file_name:"clfs.sys");
edgeVer = fetch_file_version(sysPath:sysPath, file_name:"edgehtml.dll");
if(!clfVer && !edgeVer && !clfVer1){
  exit(0);
}

if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) > 0)
{
  if(clfVer && version_is_less(version:clfVer, test_version:"6.3.9600.18539"))
  {
    Vulnerable_range = "Less than 6.3.9600.18539";
    VULN = TRUE ;
  }
}

else if(hotfix_check_sp(win7:2, win7x64:2, win2008r2:2) > 0)
{
  if(clfVer1 && version_is_less(version:clfVer1, test_version:"6.1.7601.23598"))
  {
    Vulnerable_range1 = "Less than 6.1.7601.23598";
    VULN1 = TRUE ;
  }
}

else if(hotfix_check_sp(win2012:1) > 0)
{
  if(clfVer && version_is_less(version:clfVer, test_version:"6.2.9200.22034"))
  {
    Vulnerable_range = "Less than 6.2.9200.22034";
    VULN = TRUE ;
  }
}

else if(hotfix_check_sp(winVista:3, winVistax64:3, win2008:3, win2008x64:3) > 0)
{
  if(clfVer1 && version_is_less(version:clfVer1, test_version:"6.0.6002.19717"))
  {
    Vulnerable_range1 = "Less than 6.0.6002.19717";
    VULN1 = TRUE ;
  }
  else if(clfVer1 && version_in_range(version:clfVer1, test_version:"6.0.6002.23000", test_version2:"6.0.6002.24038"))
  {
    Vulnerable_range1 = "6.0.6002.23000 - 6.0.6002.24038";
    VULN1 = TRUE ;
  }
}

else if(hotfix_check_sp(win10:1, win10x64:1, win2016:1) > 0 && edgeVer)
{
  if(edgeVer && version_is_less(version:edgeVer, test_version:"11.0.10240.17202"))
  {
    Vulnerable_range1 = "Less than 11.0.10240.17202";
    VULN1 = TRUE ;
  }
  else if(edgeVer && version_in_range(version:edgeVer, test_version:"11.0.10586.0", test_version2:"11.0.10586.712"))
  {
    Vulnerable_range1 = "11.0.10586.0 - 11.0.10586.712";
    VULN1 = TRUE ;
  }

  else if(edgeVer && version_in_range(version:edgeVer, test_version:"11.0.14393.0", test_version2:"11.0.14393.575"))
  {
    Vulnerable_range1 = "11.0.14393.0 - 11.0.14393.575";
    VULN1 = TRUE ;
  }

  if(VULN1)
  {
    report = 'File checked:     ' + sysPath + "\edgehtml.dll" + '\n' +
             'File version:     ' + edgeVer  + '\n' +
             'Vulnerable range: ' + Vulnerable_range1 + '\n' ;
    security_message(data:report);
    exit(0);
  }
}

if(VULN)
{
  report = 'File checked:     ' + sysPath + "\drivers\clfs.sys" + '\n' +
           'File version:     ' + clfVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

if(VULN1)
{
  report = 'File checked:     ' + sysPath + "\clfs.sys" + '\n' +
           'File version:     ' + clfVer1  + '\n' +
           'Vulnerable range: ' + Vulnerable_range1 + '\n' ;
  security_message(data:report);
  exit(0);
}
exit(0);