Vulnerabilities > CVE-2018-8427 - Information Exposure vulnerability in Microsoft products

#
# 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(118012);
  script_version("1.3");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-8427", "CVE-2018-8432", "CVE-2018-8501");
  script_xref(name:"MSKB", value:"4092444");
  script_xref(name:"MSKB", value:"4092464");
  script_xref(name:"MSKB", value:"4022138");
  script_xref(name:"MSFT", value:"MS18-4092444");
  script_xref(name:"MSFT", value:"MS18-4092464");
  script_xref(name:"MSFT", value:"MS18-4022138");

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

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

  - A remote code execution vulnerability exists in
    Microsoft PowerPoint software when the software fails to
    properly handle objects in Protected View. 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-2018-8501)

  - A remote code execution vulnerability exists in the way
    that Microsoft Graphics Components handle objects in
    memory. An attacker who successfully exploited the
    vulnerability could execute arbitrary code on a target
    system.  (CVE-2018-8432)

  - An information disclosure vulnerability exists in the
    way that Microsoft Graphics Components handle objects in
    memory. An attacker who successfully exploited the
    vulnerability could obtain information that could be
    useful for further exploitation.  (CVE-2018-8427)");
  # https://support.microsoft.com/en-us/help/4092444/description-of-the-security-update-for-microsoft-office-viewers-and-of
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6fec1d1c");
  # https://support.microsoft.com/en-us/help/4092464/description-of-the-security-update-for-word-viewer-october-9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bbf28366");
  # https://support.microsoft.com/en-us/help/4022138/description-of-the-security-update-for-powerpoint-viewer-2010-october
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fcb8a25d");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4092444
  -KB4092464
  -KB4022138");
  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:N/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-2018-8501");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:powerpoint");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
  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("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 = "MS18-10";
kbs = make_list(
  '4022138', # PowerPoint Viewer 2010
  '4092444', # Office Compat Pack
  '4092464'  # 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();

######################################################################
# PowerPoint Viewer
######################################################################
function perform_powerpoint_viewer_checks()
{
  var ppt_vwr_checks = make_array(
    "14.0", make_array("version", "14.0.7214.5000", "kb", "4022138")
  );
  if (hotfix_check_office_product(product:"PowerPointViewer", display_name:"PowerPoint Viewer", checks:ppt_vwr_checks, bulletin:bulletin))
    vuln = TRUE;
}

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

  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:"ogl.dll", version:"12.0.6803.5000", path:path, kb:"4092444", product:prod) == 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:"gdiplus.dll", version:"11.0.8451.0", path:path, kb:"4092464", product:prod) == HCF_OLDER)
      vuln = TRUE;
  }
}

######################################################################
# MAIN
######################################################################
perform_powerpoint_viewer_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(118005);
  script_version("1.12");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id(
    "CVE-2018-8320",
    "CVE-2018-8330",
    "CVE-2018-8333",
    "CVE-2018-8411",
    "CVE-2018-8423",
    "CVE-2018-8427",
    "CVE-2018-8432",
    "CVE-2018-8453",
    "CVE-2018-8472",
    "CVE-2018-8481",
    "CVE-2018-8482",
    "CVE-2018-8486",
    "CVE-2018-8489",
    "CVE-2018-8494"
  );
  script_bugtraq_id(105477);
  script_xref(name:"MSKB", value:"4463097");
  script_xref(name:"MSKB", value:"4463104");
  script_xref(name:"MSFT", value:"MS18-4463097");
  script_xref(name:"MSFT", value:"MS18-4463104");

  script_name(english:"KB4463104: Windows Server 2008 October 2018 Security Update");
  script_summary(english:"Checks for rollup.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update 4463104
or cumulative update 4463097. It is, therefore, affected by
multiple vulnerabilities :

  - An information disclosure vulnerability exists in the
    way that the Windows Graphics Device Interface (GDI)
    handles objects in memory, allowing an attacker to
    retrieve information from a targeted system. By itself,
    the information disclosure does not allow arbitrary code
    execution; however, it could allow arbitrary code to be
    run if the attacker uses it in combination with another
    vulnerability.  (CVE-2018-8472)

  - A security feature bypass vulnerability exists in DNS
    Global Blocklist feature. An attacker who successfully
    exploited this vulnerability could redirect traffic to
    malicious DNS endpoints. The update addresses the
    vulnerability by updating DNS Server Role record
    additions to not bypass the Global Query Blocklist.
    (CVE-2018-8320)

  - An information disclosure vulnerability exists when the
    Windows kernel improperly handles objects in memory. An
    attacker who successfully exploited this vulnerability
    could obtain information to further compromise the users
    system.  (CVE-2018-8330)

  - A remote code execution vulnerability exists in the way
    that Microsoft Graphics Components handle objects in
    memory. An attacker who successfully exploited the
    vulnerability could execute arbitrary code on a target
    system.  (CVE-2018-8432)

  - An information disclosure vulnerability exists when
    DirectX improperly handles objects in memory. An
    attacker who successfully exploited this vulnerability
    could obtain information to further compromise the users
    system. An authenticated attacker could exploit this
    vulnerability by running a specially crafted
    application. The update addresses the vulnerability by
    correcting how DirectX handles objects in memory.
    (CVE-2018-8486)

  - An information disclosure vulnerability exists in the
    way that Microsoft Graphics Components handle objects in
    memory. An attacker who successfully exploited the
    vulnerability could obtain information that could be
    useful for further exploitation.  (CVE-2018-8427)

  - A remote code execution vulnerability exists when
    Windows Hyper-V on a host server fails to properly
    validate input from an authenticated user on a guest
    operating system.  (CVE-2018-8489)

  - An elevation of privilege vulnerability exists when NTFS
    improperly checks access. An attacker who successfully
    exploited this vulnerability could run processes in an
    elevated context.  (CVE-2018-8411)

  - An information disclosure vulnerability exists when
    Windows Media Player improperly discloses file
    information. Successful exploitation of the
    vulnerability could allow an attacker to determine the
    presence of files on disk.  (CVE-2018-8481,
    CVE-2018-8482)

  - A remote code execution vulnerability exists when the
    Microsoft XML Core Services MSXML parser processes user
    input. An attacker who successfully exploited the
    vulnerability could run malicious code remotely to take
    control of the users system.  (CVE-2018-8494)

  - An elevation of privilege vulnerability exists in
    Windows when the Win32k component fails to properly
    handle objects in memory. An attacker who successfully
    exploited this vulnerability could run arbitrary code in
    kernel mode. An attacker could then install programs;
    view, change, or delete data; or create new accounts
    with full user rights.  (CVE-2018-8453)

  - A remote code execution vulnerability exists in the
    Microsoft JET Database Engine. An attacker who
    successfully exploited this vulnerability could take
    control of an 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-2018-8423)

  - An Elevation of Privilege vulnerability exists in Filter
    Manager when it improperly handles objects in memory. An
    attacker who successfully exploited this vulnerability
    could execute elevated code and take control of an
    affected system. An attacker could then install
    programs; view, change, or delete data; or create new
    accounts with full user rights.  (CVE-2018-8333)");
  # https://support.microsoft.com/en-us/help/4463097/windows-server-2008-update-kb4463097
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?09e189e0");
  # https://support.microsoft.com/en-us/help/4463104/windows-server-2008-update-kb4463104
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?91c1d31f");
  script_set_attribute(attribute:"solution", value:
"Apply Security Only update KB4463104 or Cumulative Update KB4463097.");
  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:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8494");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Windows NtUserSetWindowFNID Win32k User Callback');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  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("smb_check_rollup.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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS18-10";
kbs = make_list('4463097', '4463104');

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");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

if (hotfix_check_sp_range(vista:'2') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Vista" >< productname) audit(AUDIT_OS_SP_NOT_VULN);

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  smb_check_rollup(os:"6.0",
                   sp:2,
                   rollup_date:"10_2018",
                   bulletin:bulletin,
                   rollup_kb_list:[4463097, 4463104])
)
{
  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, hotfix_get_audit_report());
}