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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
96.3%
The Microsoft Office Viewer Products are 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(118926);
script_version("1.7");
script_cvs_date("Date: 2019/11/01");
script_cve_id("CVE-2018-8577");
script_bugtraq_id(105834);
script_xref(name:"MSKB", value:"4461519");
script_xref(name:"MSFT", value:"MS18-4461519");
script_name(english:"Security Updates for Microsoft Office Viewer Products (November 2018)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Viewer Products are missing a security update.");
script_set_attribute(attribute:"description", value:
"The Microsoft Office Viewer Products are missing a security
update. It is, therefore, affected by the following
vulnerability :
- 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-2018-8577)");
# https://support.microsoft.com/en-us/help/4461519/description-of-the-security-update-for-excel-viewer-2007-november-13
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c487f473");
script_set_attribute(attribute:"solution", value:
"Microsoft has released KB4461519 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: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-2018-8577");
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: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 = "MS18-11";
kbs = make_list(
'4461519' # Excel Viewer 2007
);
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
######################################################################
prod_exel = "Microsoft Excel Viewer";
installs = get_kb_list("SMB/Office/ExcelViewer/*/ProductPath");
foreach install (keys(installs))
{
common_path = installs[install];
path = ereg_replace(pattern:"^([A-Za-z]:.*)\\Microsoft Office.*", replace:"\1\Microsoft Office\Office12", string:common_path);
if (hotfix_check_fversion(file:"xlview.exe", version:"12.0.6804.5000", path:path, kb:"4461519", product:prod_exel) == 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');
}
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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
96.3%