7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
0.045 Low
EPSS
Percentile
92.5%
The Microsoft Exchange Server installed on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :
#%NASL_MIN_LEVEL 70300
#
# (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('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(131025);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/06");
script_cve_id("CVE-2019-1373");
script_xref(name:"MSKB", value:"4523171");
script_xref(name:"MSFT", value:"MS19-4523171");
script_name(english:"Security Updates for Exchange (November 2019)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Exchange Server installed on the remote host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The Microsoft Exchange Server 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 Exchange through the deserialization of
metadata via PowerShell. An attacker who successfully
exploited the vulnerability could run arbitrary code in
the context of the logged in user. Exploitation of this
vulnerability requires that a user run cmdlets via
PowerShell. The security update addresses the
vulnerability by correcting how Exchange serializes its
metadata. (CVE-2019-1373)");
# https://support.microsoft.com/en-us/help/4523171/security-update-for-exchange-server-2019-2016-and-2013
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a817f0c6");
script_set_attribute(attribute:"solution", value:
"Microsoft has released KB4523171 to address this issue.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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:N/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-2019-1373");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/12");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:exchange_server:2016");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:exchange_server:2019");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ms_bulletin_checks_possible.nasl", "microsoft_exchange_installed.nbin");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include('vcf_extras_microsoft.inc');
var app_info = vcf::microsoft::exchange::get_app_info();
var constraints =
[
{
'product' : '2013',
'cu' : 23,
'min_version': '15.00.1497.0',
'fixed_version': '15.00.1497.4',
'kb': '4523171'
},
{
'product' : '2016',
'cu' : 13,
'min_version': '15.01.1779.0',
'fixed_version': '15.01.1779.7',
'kb': '4523171'
},
{
'product' : '2016',
'cu' : 14,
'min_version': '15.01.1847.0',
'fixed_version': '15.01.1847.5',
'kb': '4523171'
},
{
'product' : '2019',
'cu' : 2,
'min_version': '15.02.397.0',
'fixed_version': '15.02.397.9',
'kb': '4523171'
},
{
'product' : '2019',
'cu' : 3,
'min_version': '15.02.464.0',
'fixed_version': '15.02.464.7',
'kb': '4523171'
}
];
vcf::microsoft::exchange::check_version_and_report
(
app_info:app_info,
bulletin:'MS19-09',
constraints:constraints,
severity:SECURITY_HOLE
);
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | exchange_server | 2016 | cpe:/a:microsoft:exchange_server:2016 |
microsoft | exchange_server | 2019 | cpe:/a:microsoft:exchange_server:2019 |
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
0.045 Low
EPSS
Percentile
92.5%