Microsoft .NET Framework Privilege Elevation Vulnerabilities (3104507)

# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.806614");
  script_version("2023-07-25T05:05:58+0000");
  script_cve_id("CVE-2015-6096", "CVE-2015-6099", "CVE-2015-6115");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2015-11-11 09:47:24 +0530 (Wed, 11 Nov 2015)");
  script_name("Microsoft .NET Framework Privilege Elevation Vulnerabilities (3104507)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Bulletin MS15-118.");

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

  script_tag(name:"insight", value:"Multiple flaws exist due to:

  - An error in the .NET Framework DTD parsing of certain specially crafted XML
  files.

  - ASP.NET improperly validates values in HTTP requests.

  - An error in the .NET Framework component which does not properly implement the
  Address Space Layout Randomization (ASLR) security feature.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to gain read access to local files, bypass the security feature and then load
  additional malicious code, inject client-side script into a users browser and
  ultimately modify or spoof content, conduct phishing activities, disclose
  information, or perform any action on the vulnerable website that the target
  user has permission to perform.");

  script_tag(name:"affected", value:"- Microsoft .NET Framework 2.0 Service Pack 2

  - Microsoft .NET Framework 3.5

  - Microsoft .NET Framework 3.5.1

  - Microsoft .NET Framework 4

  - Microsoft .NET Framework 4.5, 4.5.1, and 4.5.2

  - Microsoft .NET Framework 4.6, 4.6 RC");

  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/3104507");
  script_xref(name:"URL", value:"https://technet.microsoft.com/library/security/MS15-118");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);
  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, win8:1, win8x64:1, win8_1:1, win8_1x64:1, win2012:1, win2012R2:1, win10:1, win10x64:1) <= 0){
  exit(0);
}

key = "SOFTWARE\Microsoft\ASP.NET\";
if(!registry_key_exists(key:key)){
  exit(0);
}

foreach item (registry_enum_keys(key:key))
{
  ##Reset flags for next iteration
  VULN1 = FALSE;
  VULN2 = FALSE;
  VULN3 = FALSE;

  path = registry_get_sz(key:key + item, item:"Path");
  if(path && "\Microsoft.NET\Framework" >< path)
  {
    dllVer = fetch_file_version(sysPath:path, file_name:"System.Deployment.dll");

    if(dllVer)
    {
      ## .NET Framework 2.0 Service Pack 2 for Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2
      ## For KB: https://support.microsoft.com/en-us/kb/3097988
      if(hotfix_check_sp(winVista:3, win2008:3) > 0)
      {
        if(version_is_less(version:dllVer, test_version:"2.0.50727.4259"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "Less than 2.0.50727.4259";
        }

        if(version_in_range(version:dllVer, test_version:"2.0.50727.8000", test_version2:"2.0.50727.8670"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "2.0.50727.8000 - 2.0.50727.8670";
        }
      }

      ## .NET Framework 3.5 on Windows 8, and Windows Server 2012
      ## For KB: https://support.microsoft.com/en-us/kb/3097991
      if(hotfix_check_sp(win8:1, win8x64:1, win2012:1) > 0)
      {
        if(version_is_less(version:dllVer, test_version:"2.0.50727.6429"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "Less than 2.0.50727.6429";
        }

        if(version_in_range(version:dllVer, test_version:"2.0.50727.8000", test_version2:"2.0.50727.8670"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "2.0.50727.8000 - 2.0.50727.8670";
        }
      }

      ## .NET Framework 3.5 on Windows 8.1 and Windows Server 2012 R2
      ## For KB: https://support.microsoft.com/en-us/kb/3097992
      if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) > 0)
      {
        if(version_is_less(version:dllVer, test_version:"2.0.50727.8017"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "Less than 2.0.50727.8017";
        }

        if(version_in_range(version:dllVer, test_version:"2.0.50727.8600", test_version2:"2.0.50727.8670"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "2.0.50727.8600 - 2.0.50727.8670";
        }
      }

      ## .NET Framework 3.5 on Windows 10
      ## For KB: https://support.microsoft.com/en-us/kb/3105213
      if(hotfix_check_sp(win10:1, win10x64:1) > 0)
      {
        if(version_in_range(version:dllVer, test_version:"2.0.50727.8600", test_version2:"2.0.50727.8670"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "2.0.50727.8600 - 2.0.50727.8670";
        }
      }

      ## .NET Framework 3.5.1 for Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1
      ## For KB: https://support.microsoft.com/en-us/kb/3097989
      if(hotfix_check_sp(win7:2, win7x64:2, win2008r2:2) > 0)
      {
        if(version_is_less(version:dllVer, test_version:"2.0.50727.5493"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "Less than 2.0.50727.5493";
        }

        if(version_in_range(version:dllVer, test_version:"2.0.50727.8000", test_version2:"2.0.50727.8670"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "2.0.50727.8000 - 2.0.50727.8670";
        }
      }

      ##.NET Framework 4.5, 4.5.1, and 4.5.2 on Windows 8, and Windows Server 2012
      ## .NET Framework 4.5.1 and 4.5.2 on Windows 8.1 and Windows Server 2012 R2
      ## For KB: https://support.microsoft.com/en-us/kb/3097995
      ## For KB: https://support.microsoft.com/en-us/kb/3097997
      if(hotfix_check_sp(win8:1, win8x64:1, win2012:1, win8_1:1, win8_1x64:1, win2012R2:1) > 0)
      {
        if(version_in_range(version:dllVer, test_version:"4.0.30319.30000", test_version2:"4.0.30319.34273"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "4.0.30319.30000 - 4.0.30319.34273";
        }

        if(version_in_range(version:dllVer, test_version:"4.0.30319.36000", test_version2:"4.0.30319.36322"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "4.0.30319.36000 - 4.0.30319.36322";
        }
      }

      ## .NET Framework 4.6 and 4.6 RC on Windows 7 SP1, Windows Server 2008 R2
      ##  SP1, Windows Vista SP2, and Windows Server 2008 SP2
      ## For KB: https://support.microsoft.com/en-us/kb/3098001
      if(hotfix_check_sp(win7:2, win7x64:2, win2008r2:2, winVista:3, win2008:3) > 0)
      {
        if(version_in_range(version:dllVer, test_version:"4.6", test_version2:"4.6.117.0"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "4.6 - 4.6.117.0";
        }
      }

      ##.NET Framework 4.6 and 4.6 RC on Windows 8, and Windows Server 2012
      ## For KBS: https://support.microsoft.com/en-us/kb/3097999 and
      ## https://support.microsoft.com/en-us/kb/3098000
      if(hotfix_check_sp(win8:1, win8x64:1, win2012:1, win8_1:1, win8_1x64:1, win2012R2:1) > 0)
      {
        if(version_in_range(version:dllVer, test_version:"4.6", test_version2:"4.6.113"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "4.6 - 4.6.113";
        }
      }

      ##.NET Framework 4.6 on  Windows 10
      ## For KBS: https://support.microsoft.com/en-us/kb/3105213
      if(hotfix_check_sp(win10:1, win10x64:1) > 0)
      {
        if(version_in_range(version:dllVer, test_version:"4.6", test_version2:"4.6.113"))
        {
          VULN1 = TRUE ;
          vulnerable_range = "4.6 - 4.6.113";
        }
      }
    }

    dllpath = path + "\SetupCache";

    dllVer2 = fetch_file_version(sysPath:dllpath, file_name:"Setupengine.dll");

    if(dllVer2)
    {
      ##Not Considering https://support.microsoft.com/en-us/kb/3097994
      ##as it is superseded by https://support.microsoft.com/en-us/kb/3098778
      ##Taking only https://support.microsoft.com/en-us/kb/3098778 and

      ## .NET Framework 4 on Windows Vista,Windows Server 2008, Windows 7, and Windows Server 2008 R2
      ## For KB: https://support.microsoft.com/en-us/kb/3098778
      if(hotfix_check_sp(winVista:3, win2008:3, win7:2, win7x64:2, win2008r2:2) > 0)
      {
        if(version_is_less(version:dllVer2, test_version:"10.0.30319.1040"))
        {
          VULN2 = TRUE ;
          vulnerable_range = "Less than 10.0.30319.1040";
        }
      }

      ## https://support.microsoft.com/en-us/kb/3098781 and https://support.microsoft.com/en-us/kb/3097996
      ## are same platform same versions so taking only one

      ##.NET Framework 4.5, 4.5.1, and 4.5.2 on Windows Vista SP2, Windows Server
      ## 2008 SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1
      ## https://support.microsoft.com/en-us/kb/3097996 and https://support.microsoft.com/en-us/kb/3098781
      if(hotfix_check_sp(winVista:3, win2008:3, win7:2, win7x64:2, win2008r2:2) > 0)
      {
        if(version_in_range(version:dllVer2, test_version:"12.0", test_version2:"12.0.51720.34279"))
        {
          VULN2 = TRUE ;
          vulnerable_range = "12.0 - 12.0.51720.34279";
        }
      }

      ##.NET Framework 4.6 and 4.6 RC on Windows Vista SP2, Windows Server 2008
      ## SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1
      ## For KB: https://support.microsoft.com/en-us/kb/3098786
      if(hotfix_check_sp(win7:2, win7x64:2, win2008r2:2, winVista:3, win2008:3) > 0)
      {
        if(version_in_range(version:dllVer2, test_version:"14.0", test_version2:"14.0.117"))
        {
          VULN2 = TRUE ;
          vulnerable_range = "14.0 - 14.0.117";
        }
      }
    }

    dllVer3 = fetch_file_version(sysPath:path, file_name:"System.web.dll");
    if(dllVer3)
    {
      ##.NET Framework 4.5, 4.5.1, and 4.5.2 on Windows 8 and Windows Server 2012
      ##.NET Framework 4.5.1 and 4.5.2 on Windows 8.1, and Windows Server 2012 R2
      ## Combining two KBs, https://support.microsoft.com/en-us/kb/3098780 and
      ## https://support.microsoft.com/en-us/kb/3098779
      if(hotfix_check_sp(win8:1, win8x64:1, win2012:1, win8_1:1, win8_1x64:1, win2012R2:1) > 0)
      {
        if(version_in_range(version:dllVer3, test_version:"4.0.30319.30000", test_version2:"4.0.30319.34273"))
        {
          VULN3 = TRUE ;
          vulnerable_range = "4.0.30319.30000 - 4.0.30319.34273";
        }

        if(version_in_range(version:dllVer3, test_version:"4.0.30319.36000", test_version2:"4.0.30319.36322"))
        {
          VULN3 = TRUE ;
          vulnerable_range = "4.0.30319.36000 - 4.0.30319.36322";
        }
      }

      ##.NET Framework 4.6 and 4.6 RC on Windows 8 and Windows Server 2012
      ## For KBS: https://support.microsoft.com/en-us/kb/3098784 and
      ## https://support.microsoft.com/en-us/kb/3098785
      if(hotfix_check_sp(win8:1, win8x64:1, win2012:1, win8_1:1, win8_1x64:1, win2012R2:1) > 0)
      {
        if(version_in_range(version:dllVer3, test_version:"4.6", test_version2:"4.6.113"))
        {
          VULN3 = TRUE ;
          vulnerable_range = "4.6 - 4.6.113";
        }
      }
    }
  }

  if(VULN1)
  {
    report = 'File checked:     ' + path + "\System.Deployment.dll" + '\n' +
             'File version:     ' + dllVer  + '\n' +
             'Vulnerable range: ' + vulnerable_range + '\n' ;
    security_message(data:report);
  }

  if(VULN2)
  {
    report = 'File checked:     ' + path + "\SetupCache\Setupengine.dll" + '\n' +
             'File version:     ' + dllVer2 + '\n' +
             'Vulnerable range: ' + vulnerable_range + '\n' ;
    security_message(data:report);
  }

  if(VULN3)
  {
    report = 'File checked:     ' + path + "System.web.dll" + '\n' +
             'File version:     ' + dllVer3 + '\n' +
             'Vulnerable range: ' + vulnerable_range + '\n' ;
    security_message(data:report);
    exit(0);
  }
}
exit(0);