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
8.8 High
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.135 Low
EPSS
Percentile
95.6%
The Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities :
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-2020-1494, CVE-2020-1495, CVE-2020-1496)
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 users computer or data. (CVE-2020-1497)
An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the users computer or data. (CVE-2020-1503, CVE-2020-1583)
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-2020-1563)
An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) components handle objects in memory. An attacker who successfully exploited the vulnerability could elevate privileges. The attacker would need to already have the ability to execute code on the system.
(CVE-2020-1581)
#
# (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(162024);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/04");
script_cve_id(
"CVE-2020-1494",
"CVE-2020-1495",
"CVE-2020-1496",
"CVE-2020-1497",
"CVE-2020-1503",
"CVE-2020-1563",
"CVE-2020-1581",
"CVE-2020-1583"
);
script_xref(name:"IAVA", value:"2020-A-0359-S");
script_xref(name:"IAVA", value:"2020-A-0365-S");
script_xref(name:"IAVA", value:"2020-A-0369-S");
script_xref(name:"CEA-ID", value:"CEA-2020-0101");
script_name(english:"Security Updates for Microsoft Office Products C2R (August 2020)");
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. It is, therefore, affected by multiple vulnerabilities :
- 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-2020-1494,
CVE-2020-1495, CVE-2020-1496)
- 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 users
computer or data. (CVE-2020-1497)
- An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of
its memory. An attacker who exploited the vulnerability could use the information to compromise the users
computer or data. (CVE-2020-1503, CVE-2020-1583)
- 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-2020-1563)
- An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R)
components handle objects in memory. An attacker who successfully exploited the vulnerability could
elevate privileges. The attacker would need to already have the ability to execute code on the system.
(CVE-2020-1581)");
# 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: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-2020-1581");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-1583");
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:"2020/08/11");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/11");
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_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2022-2024 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 = 'MS20-08';
var app_info = vcf::microsoft::office::get_app_info(app:'Microsoft Office');
var constraints = [
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11328.20644','channel': 'Deferred'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.11929.20934','channel': 'Deferred','channel_version': '1908'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13001.20520','channel': 'Enterprise Deferred','channel_version': '2006'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.12827.20656','channel': 'Enterprise Deferred'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.12527.20988','channel': 'Microsoft 365 Apps on Windows 7'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.12527.20988','channel': 'First Release for Deferred'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13029.20344','channel': '2016 Retail'},
{'product':'Microsoft Office 2016','file':'graph.exe','fixed_version':'16.0.13029.20344','channel': 'Current'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.12527.20988','channel': '2019 Retail'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.12527.20988','channel': '2019 Retail','channel_version': '2002'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.13029.20344','channel': '2019 Retail','channel_version': '2004'},
{'product':'Microsoft Office 2019','file':'graph.exe','fixed_version':'16.0.10364.20059','channel': '2019 Volume'}
];
vcf::microsoft::office::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_HOLE,
bulletin:bulletin,
subproduct:'Office'
);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1494
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1495
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1496
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1497
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1503
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1563
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1581
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1583
www.nessus.org/u?fd4508ff
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
8.8 High
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.135 Low
EPSS
Percentile
95.6%