CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
93.3%
The Microsoft Word Viewer application installed on the remote host is missing a security update.
It is, therefore, affected by the following vulnerability :
#
# (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(106817);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/12/11");
script_cve_id("CVE-2018-0851");
script_bugtraq_id(102870);
script_xref(name:"MSKB", value:"4011703");
script_xref(name:"MSFT", value:"MS18-4011703");
script_xref(name:"IAVA", value:"2018-A-0051-S");
script_name(english:"Security Updates for Microsoft Word Viewer (February 2018)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Word Viewer application installed on the remote
host missing a security update.");
script_set_attribute(attribute:"description", value:
"The Microsoft Word Viewer application installed on the remote
host is missing a security update.
It is, therefore, affected by the following vulnerability :
- A remote code execution vulnerability exists in
Microsoft Office software when the Office 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-2018-0851)");
# https://support.microsoft.com/en-us/help/4011703/descriptionofthesecurityupdateforwordviewerfebruary13-2018
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?adbc8328");
script_set_attribute(attribute:"solution", value:
"Microsoft has released KB4011703 to address this issue.");
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-2018-0851");
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:"2018/02/13");
script_set_attribute(attribute:"patch_publication_date", value:"2018/02/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2018-2020 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 = "MS18-02";
kbs = make_list(
'4011703' # 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();
prod = "Microsoft Word Viewer";
var install, installs, path;
installs = get_kb_list("SMB/Office/WordViewer/*/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\Office11"
);
if (hotfix_check_fversion(file:"mso.dll", version:"11.0.8447.0", path:path, kb:"4011703", product:prod) == 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');
}
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | word_viewer | cpe:/a:microsoft:word_viewer |
CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
93.3%