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HistoryNov 10, 2021 - 12:00 a.m.

Microsoft Windows Multiple Vulnerabilities (KB5007247)

2021-11-1000:00:00
Copyright (C) 2021 Greenbone Networks GmbH
plugins.openvas.org
17
microsoft
windows
vulnerabilities
kb5007247
ntfs
credssp
active directory
remote code execution
denial of service
elevation of privilege
security update

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9

Confidence

High

EPSS

0.052

Percentile

93.2%

This host is missing a critical security
update according to Microsoft KB5007247

# Copyright (C) 2021 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.818856");
  script_version("2024-01-01T05:05:52+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-2021-38631", "CVE-2021-38665", "CVE-2021-38666", "CVE-2021-41366",
                "CVE-2021-41367", "CVE-2021-41370", "CVE-2021-41371", "CVE-2021-41377",
                "CVE-2021-41379", "CVE-2021-42275", "CVE-2021-42278", "CVE-2021-42282",
                "CVE-2021-42283", "CVE-2021-42284", "CVE-2021-42285", "CVE-2021-42287",
                "CVE-2021-42291");
  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:"2024-01-01 05:05:52 +0000 (Mon, 01 Jan 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-12-28 16:15:00 +0000 (Thu, 28 Dec 2023)");
  script_tag(name:"creation_date", value:"2021-11-10 10:57:04 +0530 (Wed, 10 Nov 2021)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB5007247)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB5007247");

  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 elevation of privilege vulnerability in NTFS.

  - An elevation of privilege vulnerability in Credential Security Support Provider Protocol (CredSSP).

  - An elevation of privilege vulnerability in Active Directory Domain Services.

  For more information about the vulnerabilities refer to Reference links.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to disclose sensitive information, perform remote code execution, cause
  denial of service condition and elevate privileges.");

  script_tag(name:"affected", value:"- Microsoft Windows 8.1 for 32-bit/x64-based systems

  - Microsoft Windows Server 2012 R2");

  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/5007247");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  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(win8_1:1, win8_1x64:1, win2012R2:1) <= 0){
  exit(0);
}

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

fileVer = fetch_file_version(sysPath:dllPath, file_name:"kernel32.dll");
if(!fileVer){
  exit(0);
}

if(version_is_less(version:fileVer, test_version:"6.3.9600.20172"))
{
  report = report_fixed_ver(file_checked:dllPath + "\Kernel32.dll",
                            file_version:fileVer, vulnerable_range:"Less than 6.3.9600.20172");
  security_message(data:report);
  exit(0);
}
exit(99);

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9

Confidence

High

EPSS

0.052

Percentile

93.2%