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openvasCopyright (C) 2018 Greenbone AGOPENVAS:1361412562310814083
HistoryOct 10, 2018 - 12:00 a.m.

Microsoft Windows Multiple Vulnerabilities (KB4462926)

2018-10-1000:00:00
Copyright (C) 2018 Greenbone AG
plugins.openvas.org
52

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

EPSS

0.947

Percentile

99.3%

This host is missing a critical security
update according to Microsoft KB4462926

# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.814083");
  script_version("2023-11-03T16:10:08+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-2018-8320", "CVE-2018-8330", "CVE-2018-8333", "CVE-2018-8411",
                "CVE-2018-8413", "CVE-2018-8423", "CVE-2018-8453", "CVE-2018-8460",
                "CVE-2018-8472", "CVE-2018-8481", "CVE-2018-8482", "CVE-2018-8484",
                "CVE-2018-8486", "CVE-2018-8489", "CVE-2018-8491", "CVE-2018-8493",
                "CVE-2018-8494");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2023-11-03 16:10:08 +0000 (Fri, 03 Nov 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-11-28 21:39:00 +0000 (Wed, 28 Nov 2018)");
  script_tag(name:"creation_date", value:"2018-10-10 10:22:26 +0530 (Wed, 10 Oct 2018)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB4462926)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB4462926");

  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:

  - Windows Win32k component fails to properly handle objects in memory.

  - Windows Hyper-V on a host server fails to properly validate input from an
    authenticated user on a guest operating system.

  - Microsoft XML Core Services MSXML parser improperly processes user input.

  - Internet Explorer improperly accesses objects in memory.

  - Filter Manager improperly handles objects in memory.

  - Windows TCP/IP stack improperly handles fragmented IP packets.

  - Windows Media Player improperly discloses file information.

  - Windows Graphics Device Interface (GDI) improperly handles objects in memory.

  - DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory.

  - Windows kernel improperly handles objects in memory.

  - Windows Theme API does not properly decompress files.

  - NTFS improperly checks access.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to run arbitrary code, bypass security restrictions, gain the same user rights
  as the current user, obtain information to further compromise the user's system,
  improperly discloses file information and escalate privileges.");

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

  - Microsoft Windows 8.1 for 32-bit/x64");

  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/4462926");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 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(win2012R2:1, win8_1:1, win8_1x64:1) <= 0){
  exit(0);
}

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

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

if(version_is_less(version:fileVer, test_version:"11.0.9600.19155"))
{
  report = report_fixed_ver(file_checked:sysPath + "\urlmon.dll",
                            file_version:fileVer, vulnerable_range:"Less than 11.0.9600.19155");
  security_message(data:report);
  exit(0);
}
exit(99);

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

EPSS

0.947

Percentile

99.3%