Vulnerabilities > CVE-2018-8375 - Unspecified vulnerability in Microsoft products

#
# (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(111698);
  script_version("1.5");
  script_cvs_date("Date: 2019/11/04");

  script_cve_id("CVE-2018-8375", "CVE-2018-8378", "CVE-2018-8382");
  script_bugtraq_id(104989, 104996, 105000);
  script_xref(name:"MSKB", value:"4032212");
  script_xref(name:"MSKB", value:"4032213");
  script_xref(name:"MSKB", value:"4092433");
  script_xref(name:"MSKB", value:"4022195");
  script_xref(name:"MSKB", value:"4092434");
  script_xref(name:"MSFT", value:"MS18-4032212");
  script_xref(name:"MSFT", value:"MS18-4032213");
  script_xref(name:"MSFT", value:"MS18-4092433");
  script_xref(name:"MSFT", value:"MS18-4022195");
  script_xref(name:"MSFT", value:"MS18-4092434");

  script_name(english:"Security Updates for Microsoft Office Viewer Products / Office Compatibility Products (August 2018)");
  script_summary(english:"Checks for Microsoft security updates.");

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

  - 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.  (CVE-2018-8375)

  - An information disclosure vulnerability exists when
    Microsoft Excel improperly discloses the contents of its
    memory. An attacker who exploited the vulnerability
    could use the information to compromise the users
    computer or data.  (CVE-2018-8382)

  - An information disclosure vulnerability exists when
    Microsoft Office software reads out of bound memory due
    to an uninitialized variable, which could disclose the
    contents of memory. An attacker who successfully
    exploited the vulnerability could view out of bound
    memory. Exploitation of the vulnerability requires that
    a user open a specially crafted file with an affected
    version of Microsoft Office software. The security
    update addresses the vulnerability by properly
    initializing the affected variable. (CVE-2018-8378)");
  # https://support.microsoft.com/en-us/help/4032212/description-of-the-security-update-for-microsoft-office-compatibility
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?044626c2");
  # https://support.microsoft.com/en-us/help/4032213/description-of-the-security-update-for-excel-viewer-2007-august-14
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?242a4c69");
  # https://support.microsoft.com/en-us/help/4092433/description-of-the-security-update-for-word-viewer-august-14-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ec324acb");
  # https://support.microsoft.com/en-us/help/4022195/description-of-the-security-update-for-microsoft-office-viewers-and-of
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?aa676634");
  # https://support.microsoft.com/en-us/help/4092434/description-of-the-security-update-for-word-viewer-august-14-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c214da08");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
  -KB4032212
  -KB4032213
  -KB4092433
  -KB4022195
  -KB4092434");
  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-2018-8375");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
  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", "microsoft_office_compatibility_pack_installed.nbin", "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 = "MS18-08";
kbs = make_list(
  '4032212', # Office Compatibility Pack Service Pack 3
  '4022195', # Office Compatibility Pack Service Pack 3 - Excel Viewer
  '4032213', # Office Excel Viewer
  '4092433', # Office Word Viewer
  '4092434'  # Office Word Viewer
);

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 Compatibility Pack
######################################################################
function perform_compatibility_checks()
{
   var install, installs, path;

  installs = get_kb_list("SMB/Office/ExcelCnv/*/ProductPath");
  foreach install (keys(installs))
  {
    path = installs[install];
    path = ereg_replace(pattern:'^(.+)\\\\[^\\\\]+\\.exe$', replace:"\1\", string:path, icase:TRUE);
    if(hotfix_check_fversion(path:path, file:"excelcnv.exe", version:"12.0.6802.5000", kb:"4032212", min_version:"12.0.0.0", product:"Microsoft Office Compatibility Pack") == HCF_OLDER)
    {
      vuln = TRUE;
      break;
    }
  }
}

######################################################################
# Excel Viewer
######################################################################
function perform_excel_viewer_checks()
{
  var install, installs, path, prod, prod_exel, common_path;
  prod = "Microsoft Excel Viewer and Office Compatibility Products";
  prod_exel = "Microsoft Excel Viewer";

  installs = get_kb_list("SMB/Office/ExcelViewer/*/ProductPath");
  foreach install (keys(installs))
  {
    common_path = installs[install];
    common_path = ereg_replace(pattern:"^([A-Za-z]:.*)\\Microsoft Office.*", replace:"\1\Common Files", string:common_path);

    path = hotfix_append_path(
      path  : common_path,
      value : "Microsoft Shared\Office12"
    );

    if (hotfix_check_fversion(file:"mso.dll", version:"12.0.6802.5000", path:path, kb:"4022195", product:prod) == HCF_OLDER)
      vuln = TRUE;

    if (hotfix_check_fversion(file:"xlview.exe", version:"12.0.6802.5000", path:path, kb:"4032213", product:prod_exel) == HCF_OLDER)
      vuln = TRUE;
  }
}

######################################################################
# Word Viewer
######################################################################
function perform_word_viewer_checks()
{
  var install, installs, path, prod;
  prod = "Microsoft Word Viewer";

  installs = get_kb_list("SMB/Office/WordViewer/*/ProductPath");
  foreach install (keys(installs))
  {
    path = installs[install];
    path = ereg_replace(pattern:"^([A-Za-z]:.*)\\[wW]ordview.exe", replace:"\1", string:path);

    if (hotfix_check_fversion(file:"Wordview.exe", version:"11.0.8450.0", path:path, kb:"4092433", product:prod) == HCF_OLDER)
      vuln = TRUE;

    if (hotfix_check_fversion(file:"Mso.dll", version:"11.0.8450.0", path:path, kb:"4092434", product:prod) == HCF_OLDER)
      vuln = TRUE;
  }
}


######################################################################
# MAIN
######################################################################
perform_compatibility_checks();
perform_excel_viewer_checks();
perform_word_viewer_checks();

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');
}

#
# (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(111682);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/04");

  script_cve_id("CVE-2018-8375", "CVE-2018-8382", "CVE-2018-8412");

  script_name(english:"Security Update for Microsoft Office (Auguest 2018) (macOS)");
  script_summary(english:"Checks the version of Microsoft Office.");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote macOS or Mac OS X host is
affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office 2016 application installed on the remote macOS
or Mac OS X host is missing a security update. It is, therefore,
affected by the following vulnerabilities:

  - An elevation of privilege vulnerability exists when the
    Microsoft AutoUpdate (MAU) application for Mac improperly
    validates updates before executing them. An attacker who
    successfully exploited the vulnerability who already has
    the ability to execute code on a system could elevate
    privileges. (CVE-2018-8412)

  - 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-2018-8375)

  - An information disclosure vulnerability exists when
    Microsoft Excel improperly discloses the contents of its
    memory. An attacker who exploited the vulnerability could
    use the information to compromise the user's computer or
    data. (CVE-2018-8382)");
  # https://docs.microsoft.com/en-us/officeupdates/release-notes-office-for-mac
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?17ce16bb");
  # https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-8412
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d9d90788");
  # https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-8375
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ea3bae2");
  # https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-8382
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1d985ef1");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Microsoft Office 2016 for
Mac.");
  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-2018-8375");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/14");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

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

  script_dependencies("macosx_office_installed.nbin");
  script_require_keys("Host/MacOSX/Version");
  script_require_ports("installed_sw/Microsoft Word", "installed_sw/Microsoft Excel", "installed_sw/Microsoft PowerPoint", "installed_sw/Microsoft OneNote", "installed_sw/Microsoft Outlook");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");

os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");

apps = make_list(
  "Microsoft Word",
  "Microsoft Excel",
  "Microsoft PowerPoint",
  "Microsoft OneNote",
  "Microsoft Outlook"
);

report = "";

foreach app (apps)
{
  installs = get_installs(app_name:app);
  if (isnull(installs[1])) continue;
  foreach install (installs[1])
  {
    version = install['version'];
    app_label = app;
    fix = NULL;
    fix_disp = NULL;

    if (version =~ "^16\.")
    {
      app_label += " for Mac 2016";
      fix = '16.16.0';
      fix_disp = '16.16 (18081201)';
    }

    if (fix && ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
    {
      report +=
        '\n  Product           : ' + app_label +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : ' + fix_disp;

      fix_disp = '';
      if (os =~ "^Mac OS X 10\.[0-9](\.|$)")
        report += '\n  Note              : Update will require Mac OS X 10.10.0 or later.\n';
      else report += '\n';
    }
  }
}

# Report findings.
if (!empty(report))
  security_report_v4(severity:SECURITY_HOLE, port:0, extra:report);
else
  audit(AUDIT_HOST_NOT, "affected");

#
# (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(111694);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/04");

  script_cve_id("CVE-2018-8375", "CVE-2018-8379", "CVE-2018-8382");
  script_xref(name:"MSKB", value:"4032223");
  script_xref(name:"MSKB", value:"4032229");
  script_xref(name:"MSKB", value:"4032241");
  script_xref(name:"MSFT", value:"MS18-4032223");
  script_xref(name:"MSFT", value:"MS18-4032229");
  script_xref(name:"MSFT", value:"MS18-4032241");

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

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

  - An information disclosure vulnerability exists when
    Microsoft Excel improperly discloses the contents of its
    memory. An attacker who exploited the vulnerability
    could use the information to compromise the users
    computer or data.  (CVE-2018-8382)

  - 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.  (CVE-2018-8375, CVE-2018-8379)");
  # https://support.microsoft.com/en-us/help/4032223/description-of-the-security-update-for-excel-2010-august-14-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f7e98db4");
  # https://support.microsoft.com/en-us/help/4032229/description-of-the-security-update-for-excel-2016-august-14-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?071d9591");
  # https://support.microsoft.com/en-us/help/4032241/description-of-the-security-update-for-excel-2013-august-14-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?89b49727");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4032223
  -KB4032229
  -KB4032241");
  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-2018-8375");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
  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 = "MS18-08";
kbs = make_list(
  '4032223', # 2010
  '4032241', # 2013
  '4032229'  # 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();

######################################################################
# Excel 2010, 2013, 2016
######################################################################
excel_checks = make_array(
  "14.0", make_array("sp", 2, "version", "14.0.7212.5000", "kb", "4032223"),
  "15.0", make_array("sp", 1, "version", "15.0.5059.1000", "kb", "4032241"),
  "16.0", make_array("sp", 0, "version", "16.0.4732.1000", "kb", "4032229")
  );

if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
  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');
}