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openvasCopyright (C) 2024 Greenbone AGOPENVAS:1361412562310832655
HistoryJan 10, 2024 - 12:00 a.m.

Microsoft .NET Framework Multiple Vulnerabilities (KB5033910)

2024-01-1000:00:00
Copyright (C) 2024 Greenbone AG
plugins.openvas.org
5
microsoft .net framework
security update
vulnerabilities
remote code execution
denial of service
security feature bypass
privilege escalation
windows 10
windows server 2016

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.9%

This host is missing an important security
update according to Microsoft KB5033910

# SPDX-FileCopyrightText: 2024 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("1.3.6.1.4.1.25623.1.0.832655");
  script_version("2024-01-19T05:06:18+0000");
  script_cve_id("CVE-2024-0056", "CVE-2024-0057", "CVE-2024-21312");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2024-01-19 05:06:18 +0000 (Fri, 19 Jan 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-01-16 18:47:00 +0000 (Tue, 16 Jan 2024)");
  script_tag(name:"creation_date", value:"2024-01-10 10:52:49 +0530 (Wed, 10 Jan 2024)");
  script_name("Microsoft .NET Framework Multiple Vulnerabilities (KB5033910)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft KB5033910");

  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,

  - .NET Framework Denial of Service Vulnerability.

  - .NET Framework Remote Code Execution Vulnerability.

  - Multiple .NET Framework Security Feature Bypass Vulnerabilities.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers to
  elevate privileges, execute code remotely, cause denial of service and bypass
  security restrictions on the target system.");

  script_tag(name:"affected", value:"Microsoft .NET Framework 4.8 for Microsoft Windows 10, version 1607 and 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/help/5033910");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}
include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(hotfix_check_sp(win10:1, win10x64:1, win2016:1) <= 0){
  exit(0);
}

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

edgeVer = fetch_file_version(sysPath:sysPath, file_name:"edgehtml.dll");
if(!edgeVer || edgeVer !~ "^11\.0\.14393"){
  exit(0);
}


if(!registry_key_exists(key:"SOFTWARE\Microsoft\.NETFramework")){
  if(!registry_key_exists(key:"SOFTWARE\Microsoft\ASP.NET")){
    if(!registry_key_exists(key:"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\")){
      exit(0);
    }
  }
}

key_list = make_list("SOFTWARE\Microsoft\.NETFramework\", "SOFTWARE\Microsoft\ASP.NET\", "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\");

foreach key(key_list)
{
  if(".NETFramework" >< key)
  {
    foreach item (registry_enum_keys(key:key))
    {
      NetPath = registry_get_sz(key:key, item:"InstallRoot");
      if(NetPath && "\Microsoft.NET\Framework" >< NetPath)
      {
        foreach item (registry_enum_keys(key:key))
        {
          dotPath = NetPath + item;
          dllVer = fetch_file_version(sysPath:dotPath, file_name:"System.dll");

          if(dllVer)
          {
            if(version_in_range(version:dllVer, test_version:"4.8", test_version2:"4.8.4689.0"))
            {
              vulnerable_range = "4.8 - 4.8.4689.0" ;
              break;
            }
          }
        }
        if(vulnerable_range){
          break;
        }
      }
    }

  }

  if((!vulnerable_range) && "ASP.NET" >< key)
  {
    foreach item (registry_enum_keys(key:key))
    {
      dotPath = registry_get_sz(key:key, item:"Path");
      if(dotPath && "\Microsoft.NET\Framework" >< dotPath)
      {
        dllVer = fetch_file_version(sysPath:dotPath, file_name:"System.dll");

        if(dllVer)
        {
          if(version_in_range(version:dllVer, test_version:"4.8", test_version2:"4.8.4689"))
          {
            vulnerable_range = "4.8 - 4.8.4689" ;
            break;
          }
        }
      }
    }
  }

  if((!vulnerable_range) && "NET Framework Setup" >< key)
  {
    dotPath = registry_get_sz(key:key, item:"InstallPath");
    if(dotPath && "\Microsoft.NET\Framework" >< dotPath)
    {
      dllVer = fetch_file_version(sysPath:dotPath, file_name:"System.dll");

      if(dllVer)
      {
        if(version_in_range(version:dllVer, test_version:"4.8", test_version2:"4.8.4689"))
        {
          vulnerable_range = "4.8 - 4.8.4689" ;
          break;
        }
      }
    }
  }

  if(vulnerable_range)
  {
    report = report_fixed_ver(file_checked:dotPath + "\System.dll",
                              file_version:dllVer, vulnerable_range:vulnerable_range);
    security_message(data:report);
    exit(0);
  }
}
exit(99);

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.9%