Microsoft Windows Remote Code Execution (3072631)

# SPDX-FileCopyrightText: 2015 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

CPE = "cpe:/a:microsoft:rdp";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.805721");
  script_version("2023-07-25T05:05:58+0000");
  script_cve_id("CVE-2015-2368", "CVE-2015-2369");
  script_tag(name:"cvss_base", value:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2015-07-15 12:14:36 +0530 (Wed, 15 Jul 2015)");
  script_name("Microsoft Windows Remote Code Execution (3072631)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Bulletin MS15-069.");

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

  script_tag(name:"insight", value:"Multiple flows are due to improperly handling
  of the loading of dynamic link library (DLL) files.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to bypass security, gain elevated privileges and execute arbitrary
  code on affected system.");

  script_tag(name:"affected", value:"- Microsoft Windows Server 2012 R2

  - Microsoft Windows 8.1 x32/x64

  - Microsoft Windows 2003 x32/x64 Service Pack 2 and prior

  - Microsoft Windows Vista x32/x64 Service Pack 2 and prior

  - Microsoft Windows Server 2008 x32/x64 Service Pack 2 and prior

  - Microsoft Windows 7 x32/x64 Service Pack 1 and prior

  - Microsoft Windows Server 2008 R2 x64 Service Pack 1 and prior");

  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/3072631");
  script_xref(name:"URL", value:"https://technet.microsoft.com/en-us/library/security/MS15-069");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("gb_rdp_version_detect_win.nasl");
  script_mandatory_keys("remote/desktop/protocol/Win/Installed");
  script_require_ports(139, 445);
  script_xref(name:"URL", value:"https://technet.microsoft.com/en-us/library/security/ms15-069.aspx");
  exit(0);
}

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

if(hotfix_check_sp(win2003:3, win2003x64:3, winVista:3, win7:2, win7x64:2,
                   win2008:3, win2008r2:2, win2012R2:1, win8_1:1, win8_1x64:1) <= 0){
  exit(0);
}

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

CeVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Cewmdm.dll");
dllVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Wcewmdm.dll");
exeVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Wksprt.exe");
alVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Atlthunk.dll");
alVer1 = fetch_file_version(sysPath:sysPath, file_name:"SysWOW64\Atlthunk.dll");
if(alVer1){
  alVer164 = sysPath + "\SysWOW64\Atlthunk.dll";
}


if(!CeVer && !dllVer && !exeVer && !alVer && !alVer1){
 exit(0);
}

rdpVer = get_app_version(cpe:CPE);

cleanPath =  sysPath + "\system32\cleanmgr.exe";

share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:cleanPath);
file =  ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1", string:cleanPath);
exeSize = get_file_size(share:share, file:file);

if(hotfix_check_sp(win2003:3) > 0 && CeVer)
{
  if(version_is_less(version:CeVer, test_version:"10.0.3790.4011"))
  {
    Vulnerable_range = "Less than 10.0.3790.4011";
    VULN1 = TRUE ;
  }
}

else if(hotfix_check_sp(win2003x64:3) > 0 && dllVer)
{
  if(version_is_less(version:dllVer, test_version:"10.0.3790.4011"))
  {
    Vulnerable_range = "Less than 10.0.3790.4011";
    VULN2 = TRUE ;
  }
}


## Currently not supporting for Vista and Windows Server 2008 64 bit
else if(hotfix_check_sp(winVista:3) > 0 && CeVer)
{
  if(version_is_less(version:CeVer, test_version:"11.0.6002.19403"))
  {
    Vulnerable_range = "Less than 11.0.6002.19403";
    VULN1 = TRUE ;
  }
  else if(version_in_range(version:CeVer, test_version:"11.0.6002.23000", test_version2:"11.0.6002.23709"))
  {
    Vulnerable_range = "11.0.6002.23000 - 11.0.6002.23709";
    VULN1 = TRUE ;
  }
}

## Currently not supporting for Windows Server 2008 64 bit
else if(hotfix_check_sp(win2008:3) > 0 && CeVer && exeSize)
{
  if(version_is_less(version:CeVer, test_version:"11.0.6002.19403"))
  {
    Vulnerable_range = "Less than 11.0.6002.19403";
    VULN1 = TRUE ;
  }
  else if(version_in_range(version:CeVer, test_version:"11.0.6002.23000", test_version2:"11.0.6002.23709"))
  {
    Vulnerable_range = "11.0.6002.23000 - 11.0.6002.23709";
    VULN1 = TRUE ;
  }
}

else if(hotfix_check_sp(win7:2, win7x64:2) > 0)
{
  ## For RDP 8.1 Mstscax.dll version is greater than or equals to 6.3.9600.00000 and less than 6.3.9601.00000
  if(version_in_range(version:rdpVer, test_version:"6.3.9600.00000", test_version2:"6.3.9600.99999"))
  {
    if((exeVer && version_is_less(version:exeVer, test_version:"6.3.9600.17901")))
    {
      Vulnerable_range = "Less than 6.3.9600.17901";
      VULN3 = TRUE ;
    }
  }

  else if(CeVer && (version_is_less(version:CeVer, test_version:"12.0.7601.18872")))
  {
    Vulnerable_range = "Less than 12.0.7601.18872";
    VULN1 = TRUE ;
  }

  else if(CeVer && (version_in_range(version:CeVer, test_version:"12.0.7601.22000", test_version2:"12.0.7601.23074")))
  {
    Vulnerable_range = "12.0.7601.22000 - 12.0.7601.23074";
    VULN1 = TRUE ;
  }
}

else if(hotfix_check_sp(win2008r2:2) > 0)
{
  ## For RDP 8.1 Mstscax.dll version is greater than or equals to 6.3.9600.00000 and less than 6.3.9601.00000
  if(version_in_range(version:rdpVer, test_version:"6.3.9600.00000", test_version2:"6.3.9600.99999"))
  {
    if((exeVer && version_is_less(version:exeVer, test_version:"6.3.9600.17901")))
    {
      Vulnerable_range = "Less than 6.3.9600.17901";
      VULN3 = TRUE ;
    }
  }

  else if(CeVer && exeSize && (version_is_less(version:CeVer, test_version:"12.0.7601.18872")))
  {
    Vulnerable_range = "Less than 12.0.7601.18872";
    VULN1 = TRUE ;
  }

  else if(CeVer && exeSize && (version_in_range(version:CeVer, test_version:"12.0.7601.22000", test_version2:"12.0.7601.23074")))
  {
    Vulnerable_range = "12.0.7601.22000 - 12.0.7601.23074";
    VULN1 = TRUE ;
  }
}

## Win 8.1
else if(hotfix_check_sp(win8_1:1) > 0 && alVer)
{
  if(version_is_less(version:alVer, test_version:"6.3.9600.17415"))
  {
    Vulnerable_range = "Less than 6.3.9600.17415";
    VULN4 = TRUE ;
  }
}

## Win 8.1 and 2012 x64
else if(hotfix_check_sp(win8x64:1, win2012:1) > 0 && alVer1)
{
  if(version_is_less(version:alVer1, test_version:"6.3.9600.17670"))
  {
    Vulnerable_range = "Less than 6.3.9600.17670";
    VULN5 = TRUE ;
  }
}

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

if(VULN2)
{
  report = 'File checked:     ' + sysPath + "\System32\Wcewmdm.dll" + '\n' +
           'File version:     ' + dllVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

if(VULN3)
{
  report = 'File checked:     ' + sysPath + "\System32\Wksprt.exe" + '\n' +
           'File version:     ' + exeVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

if(VULN4)
{
  report = 'File checked:     ' + sysPath + "\System32\Atlthunk.dll" + '\n' +
           'File version:     ' + alVer  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}

if(VULN5)
{
  report = 'File checked:     ' + alVer164 + '\n' +
           'File version:     ' + alVer1  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}