Microsoft Windows Kernel Privilege Escalation Vulnerability (4013081)

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.810814");
  script_version("2026-04-28T06:28:06+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2017-0050", "CVE-2017-0101", "CVE-2017-0102", "CVE-2017-0103");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
  script_tag(name:"creation_date", value:"2017-03-15 12:18:08 +0530 (Wed, 15 Mar 2017)");
  script_name("Microsoft Windows Kernel Privilege Escalation Vulnerability (4013081)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Bulletin MS17-017");

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

  script_tag(name:"insight", value:"Multiple flaws exist as,

  - Windows kernel API enforces permissions.

  - Windows Transaction Manager improperly handles objects in memory.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to gain elevated privileges on a targeted system.");

  script_tag(name:"affected", value:"- Microsoft Windows 8.1 x32/x64

  - Microsoft Windows 10 x32/x64

  - Microsoft Windows Server 2012/2012R2

  - Microsoft Windows 10 Version 1511 x32/x64

  - Microsoft Windows 10 Version 1607 x32/x64

  - Microsoft Windows Vista x32/x64 Edition Service Pack 2

  - Microsoft Windows Server 2008 x32/x64 Edition Service Pack 2

  - Microsoft Windows 7 x32/x64 Edition Service Pack 1

  - Microsoft Windows Server 2008 R2 x64 Edition Service Pack 1

  - Microsoft Windows Server 2016");

  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_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/kb/4013081");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/96025");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/96625");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/96627");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/96623");
  script_xref(name:"URL", value:"https://technet.microsoft.com/en-us/library/security/MS17-017");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 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/MS17-017");
  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, win7:2, win7x64:2, win2008:3, win2008r2:2, winVistax64:3,
                   win2008x64:3, win2012:1, win2012R2:1, win8_1:1, win8_1x64:1, win10:1,
                   win10x64:1, win2016:1) <= 0){
  exit(0);
}

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

winVer = fetch_file_version(sysPath:sysPath, file_name:"System32\Win32k.sys");
advVer = fetch_file_version(sysPath:sysPath, file_name:"System32\advapi32.dll");
if(!winVer && !advVer){
  exit(0);
}

## Extracted patch and checked for version
if(hotfix_check_sp(winVista:3, winVistax64:3, win2008:3, win2008x64:3) > 0 && advVer)
{
    if(version_is_less(version:advVer, test_version:"6.0.6002.19680"))
    {
      Vulnerable_range1 = "Less than 6.0.6002.19680";
      VULN1 = TRUE ;
    }

    else if(version_in_range(version:advVer, test_version:"6.0.6002.24000", test_version2:"6.0.6002.24064"))
    {
      Vulnerable_range1 = "6.0.6002.24000 - 6.0.6002.24064";
      VULN1 = TRUE ;
    }
}

if(hotfix_check_sp(win7:2, win7x64:2, win2008r2:2) > 0)
{
    ## Presently GDR information is not available.
    if(version_is_less(version:winVer, test_version:"6.1.7601.23677"))
    {
      Vulnerable_range = "Less than 6.1.7601.23677";
      VULN = TRUE ;
    }
}

## Win 8.1 and win2012R2
else if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) > 0)
{
  if(version_is_less(version:winVer, test_version:"6.3.9600.18603"))
  {
    Vulnerable_range = "Less than 6.3.9600.18603";
    VULN = TRUE ;
  }
}

else if(hotfix_check_sp(win2012:1) > 0)
{
  if(version_is_less(version:winVer, test_version:"6.2.9200.22097"))
  {
     Vulnerable_range = "Less than 6.2.9200.22097";
     VULN = TRUE;
  }
}


else if(hotfix_check_sp(win10:1, win10x64:1, win2016:1) > 0)
{
  if(version_is_less(version:winVer, test_version:"10.0.10240.16384"))
  {
    Vulnerable_range = "Less than 10.0.10240.16384";
    VULN = TRUE;
  }

  else if(winVer && version_in_range(version:winVer, test_version:"10.0.10586.0", test_version2:"10.0.10586.19"))
  {
    Vulnerable_range = "10.0.10586.0 - 10.0.10586.19";
    VULN = TRUE;
  }

  else if( winVer && version_in_range(version:winVer, test_version:"10.0.14393.0", test_version2:"10.0.14393.593"))
  {
    Vulnerable_range = "10.0.14393.0 - 10.0.14393.593";
    VULN = TRUE;
  }
}

if(VULN)
{
  report = 'File checked:     ' + sysPath + "\System32\Win32k.sys" + '\n' +
           'File version:     ' + winVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

else if(VULN1)
{
  report = 'File checked:     ' + sysPath + "\System32\advapi32.dll" + '\n' +
           'File version:     ' + advVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range1 + '\n' ;
  security_message(data:report);
  exit(0);
}

exit(0);