9.3 High
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
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
0.061 Low
EPSS
Percentile
93.6%
The Microsoft Office Products are missing security updates. They are, therefore, affected by multiple vulnerabilities:
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. (CVE-2019-1084)
A spoofing vulnerability exists when Microsoft Office Javascript does not check the validity of the web page making a request to Office documents. An attacker who successfully exploited this vulnerability could read or write information in Office documents. (CVE-2019-1109)
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. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.(CVE-2019-1111)
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 userβs computer or data.
To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it.
An attacker must know the memory address location where the object was created. (CVE-2019-1112) The update addresses the vulnerability by changing the way certain Excel functions handle objects in memory.
#
# (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(162078);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");
script_cve_id(
"CVE-2019-1084",
"CVE-2019-1109",
"CVE-2019-1111",
"CVE-2019-1112"
);
script_bugtraq_id(
108415,
108965,
108974,
108975
);
script_name(english:"Security Updates for Microsoft Office Products C2R (July 2019)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Office Products are missing security updates. They are, therefore, affected by multiple vulnerabilities:
- An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having
non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with
invalid display names, which, when added to conversations, remain invisible. (CVE-2019-1084)
- A spoofing vulnerability exists when Microsoft Office Javascript does not check the validity of the web page making
a request to Office documents. An attacker who successfully exploited this vulnerability could read or write
information in Office documents. (CVE-2019-1109)
- 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. Exploitation of the vulnerability
requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack
scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and
convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage
a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to
exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker
would have to convince users to click a link, typically by way of an enticement in an email or instant message, and
then convince them to open the specially crafted file.(CVE-2019-1111)
- 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 userΓ’ΒΒs computer or data.
To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it.
An attacker must know the memory address location where the object was created. (CVE-2019-1112)
The update addresses the vulnerability by changing the way certain Excel functions handle objects in memory.");
# https://docs.microsoft.com/en-us/officeupdates/update-history-microsoft365-apps-by-date
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fd4508ff");
script_set_attribute(attribute:"solution", value:
"For Office 365, Office 2016 C2R, or Office 2019, ensure automatic
updates are enabled or open any office app and manually perform an
update.");
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:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1111");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-1109");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/09");
script_set_attribute(attribute:"patch_publication_date", value:"2019/07/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2022-2023 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('vcf_extras_office.inc');
var bulletin = 'MS19-07';
var app_info = vcf::microsoft::office::get_app_info(app:'Microsoft Office');
var constraints = [
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.9126.2428','channel': 'Deferred'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.10730.20360','channel': 'Deferred','channel_version': '1808'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11328.20368','channel': 'Deferred','channel_version': '1902'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11328.20368','channel': 'First Release for Deferred'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11727.20244','channel': 'Current'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.11727.20244','channel': '2019 Retail'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.10348.20020','channel': '2019 Volume'}
];
vcf::microsoft::office::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_HOLE,
bulletin:bulletin,
subproduct:"Office"
);
9.3 High
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
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
0.061 Low
EPSS
Percentile
93.6%