Vulnerabilities > CVE-2018-8573 - Unspecified vulnerability in Microsoft Office, Office 365 Proplus and Word

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
microsoft
critical
nessus
NVD
Published: 2018-11-14
Updated: 2020-08-24

Summary

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka "Microsoft Word Remote Code Execution Vulnerability." This affects Microsoft Word, Office 365 ProPlus, Microsoft Office. This CVE ID is unique from CVE-2018-8539.

Vulnerable Configurations

Part Description Count
Application
Microsoft
7

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_NOV_WORD.NASL
    descriptionThe Microsoft Word Products are missing a security update. It is, therefore, affected by the following vulnerability : - A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. (CVE-2018-8573)
    last seen2020-06-01
    modified2020-06-02
    plugin id118930
    published2018-11-13
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118930
    titleSecurity Updates for Microsoft Word Products (November 2018)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include("compat.inc");

if (description)
{
  script_id(118930);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-8573");
  script_bugtraq_id(105836);
  script_xref(name:"MSKB", value:"4461526");
  script_xref(name:"MSKB", value:"4461504");
  script_xref(name:"MSKB", value:"4461485");
  script_xref(name:"MSFT", value:"MS18-4461526");
  script_xref(name:"MSFT", value:"MS18-4461504");
  script_xref(name:"MSFT", value:"MS18-4461485");

  script_name(english:"Security Updates for Microsoft Word Products (November 2018)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Word Products are missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Word Products are missing a security update.
It is, therefore, affected by the following vulnerability :

  - A remote code execution vulnerability exists in
    Microsoft Word software when it fails to properly handle
    objects in memory. An attacker who successfully
    exploited the vulnerability could use a specially
    crafted file to perform actions in the security context
    of the current user. For example, the file could then
    take actions on behalf of the logged-on user with the
    same permissions as the current user.  (CVE-2018-8573)");
  # https://support.microsoft.com/en-us/help/4461526/description-of-the-security-update-for-word-2010-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0182e308");
  # https://support.microsoft.com/en-us/help/4461504/description-of-the-security-update-for-word-2016-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c3a54e87");
  # https://support.microsoft.com/en-us/help/4461485/description-of-the-security-update-for-word-2013-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7d8271a2");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4461526
  -KB4461504
  -KB4461485");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8573");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("install_func.inc");

global_var vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-11";
kbs = make_list(
'4461526',
'4461504',
'4461485'
);

if (get_kb_item("Host/patch_management_checks"))
  hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

port = kb_smb_transport();

checks = make_array(
  "14.0", make_array("sp", 2, "version", "14.0.7224.5000", "kb", "4461526"),
  "15.0", make_array("sp", 1, "version", "15.0.5085.1000", "kb", "4461485"),
  "16.0", make_nested_list(
    make_array("sp", 0, "version", "16.0.4771.1000", "channel", "MSI", "kb", "4461504"),
    # C2R
    make_array("sp", 0, "version", "16.0.8431.2329", "channel", "Deferred"),
    make_array("sp", 0, "version", "16.0.9126.2315", "channel", "Deferred", "channel_version", "1803"),
    make_array("sp", 0, "version", "16.0.10730.20205", "channel", "First Release for Deferred"),
    make_array("sp", 0, "version", "16.0.11001.20108", "channel", "Current"),
    # 2019
    make_array("sp", 0, "version", "16.0.11001.20108", "channel", "2019 Retail"),
    make_array("sp", 0, "version", "16.0.10338.20019", "channel", "2019 Volume")
  )
);

if (hotfix_check_office_product(product:"Word", checks:checks, bulletin:bulletin))
{
  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_NOV_OFFICE.NASL
    descriptionThe Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities: - A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. (CVE-2018-8539) - A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. (CVE-2018-8573) - A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. (CVE-2018-8577)
    last seen2020-06-01
    modified2020-06-02
    plugin id118923
    published2018-11-13
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118923
    titleSecurity Updates for Microsoft Office Products (November 2018)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include("compat.inc");

if (description)
{
  script_id(118923);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-8539", "CVE-2018-8573", "CVE-2018-8577");
  script_bugtraq_id(105834, 105835, 105836);
  script_xref(name:"MSKB", value:"3114565");
  script_xref(name:"MSKB", value:"4022232");
  script_xref(name:"MSKB", value:"4022237");
  script_xref(name:"MSKB", value:"4032218");
  script_xref(name:"MSKB", value:"4461524");
  script_xref(name:"MSFT", value:"MS18-3114565");
  script_xref(name:"MSFT", value:"MS18-4022232");
  script_xref(name:"MSFT", value:"MS18-4022237");
  script_xref(name:"MSFT", value:"MS18-4032218");
  script_xref(name:"MSFT", value:"MS18-4461524");

  script_name(english:"Security Updates for Microsoft Office Products (November 2018)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities:

  - A remote code execution vulnerability exists in Microsoft Word
    software when it fails to properly handle objects in memory. An
    attacker who successfully exploited the vulnerability could use a
    specially crafted file to perform actions in the security context
    of the current user. For example, the file could then take
    actions on behalf of the logged-on user with the same permissions
    as the current user. (CVE-2018-8539)

  - A remote code execution vulnerability exists in Microsoft Word
    software when it fails to properly handle objects in memory. An
    attacker who successfully exploited the vulnerability could use 
    specially crafted file to perform actions in the security context
    of the current user. For example, the file could then take
    actions on behalf of the logged-on user with the same permissions
    as the current user. (CVE-2018-8573)

  - A remote code execution vulnerability exists in Microsoft Excel
    software when the software fails to properly handle objects in
    memory. An attacker who successfully exploited the vulnerability
    could run arbitrary code in the context of the current user. If
    the current user is logged on with administrative user rights, an
    attacker could take control of the affected system. An attacker
    could then install programs; view, change, or delete data; or
    create new accounts with full user rights. Users whose accounts
    are configured to have fewer user rights on the system could be
    less impacted than users who operate with administrative user
    rights. (CVE-2018-8577)");
  # https://support.microsoft.com/en-us/help/3114565/description-of-the-security-update-for-office-2010-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b54ec653");
  # https://support.microsoft.com/en-us/help/4461524/description-of-the-security-update-for-office-2010-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?40ae07b8");
  # https://support.microsoft.com/en-us/help/4022237/description-of-the-security-update-for-office-2013-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bf1d296c");
  # https://support.microsoft.com/en-us/help/4022232/description-of-the-security-update-for-office-2016-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?33c6fe77");
  # https://support.microsoft.com/en-us/help/4032218/description-of-the-security-update-for-office-2010-november-13-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c40d64c8");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
  -KB3114565
  -KB4022232
  -KB4022237
  -KB4032218
  -KB4461524");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8539");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");

global_var vuln;

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-11";
kbs = make_list(
  '3114565', # Office 2010 SP2
  '4032218', # Office 2010 SP2
  '4461524', # Office 2010 SP2
  '4022237', # Office 2013 SP1
  '4022232'  # Office 2016
);

if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

vuln = FALSE;
port = kb_smb_transport();

office_vers = hotfix_check_office_version();

# Office 2010 SP2
if (office_vers["14.0"])
{
  office_sp = get_kb_item("SMB/Office/2010/SP");
  if (!isnull(office_sp) && office_sp == 2)
  {
    prod = "Microsoft Office 2010 SP2";

    path = hotfix_get_officeprogramfilesdir(officever:"14.0");
    path = hotfix_append_path(path:path, value:"Microsoft Office\Office14");
    kb = "4032218";
    file = "graph.exe";
    version = "14.0.7224.5000";
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;

    path = hotfix_get_officecommonfilesdir(officever:"14.0");
    path = hotfix_append_path(path:path, value:"Microsoft Shared\Office14");
    kb = "3114565";
    file = "msptls.dll";
    version = "14.0.7224.5000";
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;

    # wwlibcxm.dll only exists if KB2428677 is installed
    path = hotfix_get_officeprogramfilesdir(officever:"14.0");
    kb = "4461524";
    file = "wwlibcxm.dll";
    version = "14.0.7224.5000";
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;
  }
}

# Office 2013 SP1
if (office_vers["15.0"])
{
  office_sp = get_kb_item("SMB/Office/2013/SP");
  if (!isnull(office_sp) && office_sp == 1)
  {
    prod = "Microsoft Office 2013 SP1";

    path = hotfix_get_officeprogramfilesdir(officever:"15.0");
    path = hotfix_append_path(path:path, value:"Microsoft Office\Office15");
    kb = "4022237";
    file = "graph.exe";
    version = "15.0.5085.1000";
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;
  }
}

# Office 2016
if (office_vers["16.0"])
{
  office_sp = get_kb_item("SMB/Office/2016/SP");
  if (!isnull(office_sp) && office_sp == 0)
  {
    prod = "Microsoft Office 2016";
    prod2019 = "Microsoft Office 2019";

    path = hotfix_get_officeprogramfilesdir(officever:"16.0");
    msi_path = hotfix_append_path(path: path, value : "Microsoft Office\Office16");
    c2r_path = hotfix_append_path(path: path, value : "Microsoft Office\root\Office16");
    file = "graph.exe";
    kb = "4022232";
    if (
      hotfix_check_fversion(file:file, version:"16.0.4771.1000", channel:"MSI", channel_product:"Office", path:msi_path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER ||
      # C2R
      hotfix_check_fversion(file:file, version:"16.0.8431.2329", channel:"Deferred", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.9126.2315", channel:"Deferred", channel_version:"1803", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.10730.20205", channel:"First Release for Deferred", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.11001.20108", channel:"Current", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      # 2019
      hotfix_check_fversion(file:file, version:"16.0.11001.20108", channel:"2019 Retail", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod2019) == HCF_OLDER ||
      hotfix_check_fversion(file:file, version:"16.0.10338.20019", channel:"2019 Volume", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod2019) == HCF_OLDER
    )
    vuln = TRUE;
  }
}

if (vuln)
{
  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}

The Hacker News

idTHN:FC0A657EEDC66A38CB29C06FB477EEF0
last seen2018-11-14
modified2018-11-14
published2018-11-14
reporterThe Hacker News
sourcehttps://thehackernews.com/2018/11/microsoft-patch-tuesday-updates.html
title63 New Flaws (Including 0-Days) Windows Users Need to Patch Now

References