Vulnerabilities > CVE-2018-0797 - Out-of-bounds Write vulnerability in Microsoft products

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
microsoft
CWE-787
nessus
NVD
Published: 2018-01-10
Updated: 2024-11-21

Summary

Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way RTF content is handled, aka "Microsoft Word Memory Corruption Vulnerability".

Vulnerable Configurations

Part Description Count
Application
Microsoft
16

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_WORD.NASL
    descriptionThe Microsoft Words Products are missing security updates. It is therefore affected by multiple issues involving handling of Office and RTF (Rich Text Format) files. If successfully exploited, an attacker could execute code in the context of the current user.
    last seen2020-06-01
    modified2020-06-02
    plugin id105700
    published2018-01-09
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105700
    titleSecurity Updates for Microsoft Word Products (January 2018)
    code
    #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");

if (description)
{
  script_id(105700);
  script_version("1.11");
  script_cvs_date("Date: 2019/09/24 11:01:34");

  script_cve_id(
    "CVE-2018-0792",
    "CVE-2018-0793",
    "CVE-2018-0794",
    "CVE-2018-0797",
    "CVE-2018-0798",
    "CVE-2018-0845",
    "CVE-2018-0848",
    "CVE-2018-0849",
    "CVE-2018-0862"
  );
  script_bugtraq_id(
    102370,
    102373,
    102375,
    102381,
    102406
  );
  script_xref(name:"MSKB", value:"4011657");
  script_xref(name:"MSKB", value:"4011643");
  script_xref(name:"MSKB", value:"4011659");
  script_xref(name:"MSKB", value:"4011651");
  script_xref(name:"MSFT", value:"MS18-4011657");
  script_xref(name:"MSFT", value:"MS18-4011643");
  script_xref(name:"MSFT", value:"MS18-4011659");
  script_xref(name:"MSFT", value:"MS18-4011651");
  script_xref(name:"IAVA", value:"2018-A-0009");

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

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Word Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Words Products are missing security updates. It is
therefore affected by multiple issues involving handling of Office
and RTF (Rich Text Format) files. If successfully exploited, an
attacker could execute code in the context of the current user.");
  # https://support.microsoft.com/en-us/help/4011657/description-of-the-security-update-for-word-2007-january-9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5b1d0d8a");
  # https://support.microsoft.com/en-us/help/4011659/description-of-the-security-update-for-word-2010-january-9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?65eb88a5");
  # https://support.microsoft.com/en-us/help/4011651/descriptionofthesecurityupdateforword2013january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2ceece7f");
  # https://support.microsoft.com/en-us/help/4011643/description-of-the-security-update-for-word-2016-january-9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3a6c85db");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
  -KB4011657
  -KB4011659
  -KB4011651
  -KB4011643");
  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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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 = "MS18-01";
kbs = make_list(
  '4011657', # Word 2007 SP3
  '4011659', # Word 2010 SP2
  '4011651', # Word 2013 SP1
  '4011643'  # Word 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();

######################################################################
# Word 2007, 2010, 2013, 2016
######################################################################
function perform_word_checks()
{
  local_var word_checks, kb16;

  kb16 = "4011643";
  word_checks = make_array(
    "12.0", make_array("sp", 3, "version", "12.0.6784.5000", "kb", "4011657"),
    "14.0", make_array("sp", 2, "version", "14.0.7192.5000", "kb", "4011659"),
    "15.0", make_array("sp", 1, "version", "15.0.4997.1000", "kb", "4011651"),
    "16.0", make_nested_list(
      make_array("sp", 0, "version", "16.0.4639.1000", "channel", "MSI", "kb", kb16),
      make_array("sp", 0, "version", "16.0.8431.2153", "channel", "Deferred", "channel_version", "1708", "kb", kb16),
      make_array("sp", 0, "version", "16.0.8201.2217", "channel", "Deferred", "kb", kb16),
      make_array("sp", 0, "version", "16.0.8431.2153", "channel", "First Release for Deferred", "kb", kb16),
      make_array("sp", 0, "version", "16.0.8730.2175", "channel", "Current", "kb", kb16)
    )
  );
  if (hotfix_check_office_product(product:"Word", checks:word_checks, bulletin:bulletin))
    vuln = TRUE;
}

######################################################################
# MAIN
######################################################################
perform_word_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');
}
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE_VIEWERS.NASL
    descriptionThe Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office 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-2018-0796) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. 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-2018-0797)
    last seen2020-06-01
    modified2020-06-02
    plugin id105697
    published2018-01-09
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105697
    titleSecurity Updates for Microsoft Office Viewer Products (January 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(105697);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id("CVE-2018-0796", "CVE-2018-0797");
  script_bugtraq_id(102372, 102406);
  script_xref(name:"MSKB", value:"4011606");
  script_xref(name:"MSKB", value:"4011641");
  script_xref(name:"MSFT", value:"MS18-4011606");
  script_xref(name:"MSFT", value:"MS18-4011641");
  script_xref(name:"IAVA", value:"2018-A-0009");

  script_name(english:"Security Updates for Microsoft Office Viewer Products (January 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 Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - A remote code execution vulnerability exists in
    Microsoft Office 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-2018-0796)

  - An Office RTF remote code execution vulnerability
    exists in Microsoft Office software when the Office
    software fails to properly handle RTF files. 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-2018-0797)");
  # https://support.microsoft.com/en-us/help/4011606/descriptionofthesecurityupdateforexcelviewer2007january9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7bc74327");
  # https://support.microsoft.com/en-us/help/4011641/descriptionofthesecurityupdateforwordviewerjanuary9-2018
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?de96d39f");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4011606
  -KB4011641");
  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-2018-0797");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/09");

  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:"stig_severity", value:"I");
  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 = "MS18-01";
kbs = make_list(
  '4011606', # Excel Viewer 2007 SP3
  '4011641'  # 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();

######################################################################
# Excel Viewer
######################################################################
function perform_excel_viewer_checks()
{
  var excel_vwr_checks = make_array(
    "12.0", make_array("version", "12.0.6784.5000", "kb", "4011606")
  );
  if (hotfix_check_office_product(product:"ExcelViewer", display_name:"Excel Viewer", checks:excel_vwr_checks, bulletin:bulletin))
    vuln = TRUE;
}

######################################################################
# Word Viewer
######################################################################
function perform_word_viewer_checks()
{
  var word_vwr_checks = make_array(
    "11.0", make_array("version", "11.0.8446.0", "kb", "4011641")
  );
  if (hotfix_check_office_product(product:"WordViewer", display_name:"Word Viewer", checks:word_vwr_checks, bulletin:bulletin))
    vuln = TRUE;
}


######################################################################
# MAIN
######################################################################
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');
}
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE_WEB.NASL
    descriptionThe Microsoft Office Online Server or Microsoft Office Web Apps installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities : - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. 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-2018-0797) - A remote code execution vulnerability exists in Microsoft Office 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-2018-0792)
    last seen2020-06-01
    modified2020-06-02
    plugin id105698
    published2018-01-09
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105698
    titleSecurity Updates for Microsoft Office Online Server and Microsoft Office Web Apps (January 2018)
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE_COMPATIBILITY.NASL
    descriptionThe Microsoft Office Compatibility Pack products installed on the remote host are missing security updates. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office 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. (CVE-2018-0793, CVE-2018-0794, CVE-2018-0796, CVE-2018-0798, CVE-2018-0801, CVE-2018-0802, CVE-2018-0804, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807, CVE-2018-0812) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. (CVE-2018-0797)
    last seen2020-06-01
    modified2020-06-02
    plugin id105695
    published2018-01-09
    reporterThis script is Copyright (C) 2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/105695
    titleSecurity Updates for Microsoft Office Compatibility SP3 (January 2018)
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE.NASL
    descriptionThe Microsoft Office Products are missing security updates. It is, therefore, affected by the following vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office 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-2018-0794, CVE-2018-0795) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. 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-2018-0797) - A remote code execution vulnerability exists in Microsoft Office 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-2018-0798, CVE-2018-0801, CVE-2018-0802, CVE-2018-0804, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807, CVE-2018-0812) - A remote code execution vulnerability exists in the way that Microsoft Outlook parses specially crafted email messages. An attacker who successfully exploited the 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. Exploitation of this vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Outlook. (CVE-2018-0793)
    last seen2020-06-01
    modified2020-06-02
    plugin id105728
    published2018-01-10
    reporterThis script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105728
    titleSecurity Updates for Microsoft Office Products (January 2018)
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_JAN_OFFICE_SHAREPOINT.NASL
    descriptionThe Microsoft SharePoint Server or Microsoft Project Server installation on the remote host is missing security updates. It is, therefore, affected by the following vulnerabilities : - An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. (CVE-2018-0789, CVE-2018-0790) - A remote code execution vulnerability exists in Microsoft Office 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-2018-0792) - An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. 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-2018-0797) - A cross-site-scripting (XSS) vulnerability exists when Microsoft Access does not properly sanitize inputs to image fields edited within Design view. An attacker could exploit the vulnerability by sending a specially crafted file to a victim, or by hosting the file on a web server. (CVE-2018-0799)
    last seen2020-06-01
    modified2020-06-02
    plugin id105696
    published2018-01-09
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105696
    titleSecurity Update for Microsoft SharePoint Server (January 2018)

References