10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.44 Medium
EPSS
Percentile
97.4%
The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
A remote code execution vulnerability exists in Microsoft Exchange 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 System user. An attacker could then install programs; view, change, or delete data; or create new accounts. Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Exchange server. The security update addresses the vulnerability by correcting how Microsoft Exchange handles objects in memory.
(CVE-2018-8302)
A tampering vulnerability exists when Microsoft Exchange Server fails to properly handle profile data. An attacker who successfully exploited this vulnerability could modify a targeted userβs profile data.
(CVE-2018-8374)
#
# (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(111755);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/20");
script_cve_id("CVE-2018-8302", "CVE-2018-8374");
script_bugtraq_id(104973, 104993);
script_xref(name:"MSKB", value:"4340731");
script_xref(name:"MSKB", value:"4340733");
script_xref(name:"MSFT", value:"MS18-4340731");
script_xref(name:"MSFT", value:"MS18-4340733");
script_name(english:"Security Updates for Exchange (August 2018)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Exchange Server installed on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Exchange Server installed on the remote host
is missing security updates. It is, therefore, affected by
multiple vulnerabilities :
- A remote code execution vulnerability exists in
Microsoft Exchange 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 System user. An
attacker could then install programs; view, change, or
delete data; or create new accounts. Exploitation of the
vulnerability requires that a specially crafted email be
sent to a vulnerable Exchange server. The security
update addresses the vulnerability by correcting how
Microsoft Exchange handles objects in memory.
(CVE-2018-8302)
- A tampering vulnerability exists when Microsoft Exchange
Server fails to properly handle profile data. An
attacker who successfully exploited this vulnerability
could modify a targeted user's profile data.
(CVE-2018-8374)");
# https://support.microsoft.com/en-us/help/4340731/description-of-the-security-update-for-microsoft-exchange-server-2013
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?daef159c");
# https://support.microsoft.com/en-us/help/4340733/update-rollup-23-for-exchange-server-2010-service-pack-3
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f9ef5fbd");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4340731
-KB4340733");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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: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-2018-8302");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
script_set_attribute(attribute:"patch_publication_date", value:"2018/08/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:exchange_server");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2018-2021 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("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");
include("install_func.inc");
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
exit_if_productname_not_server();
bulletin = 'MS18-08';
kb = "4340731";
kb2 = "4340733";
kbs = make_list(kb, kb2);
if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
install = get_single_install(app_name:"Microsoft Exchange");
path = install["path"];
version = install["version"];
release = install["RELEASE"];
if (release != 140 && release != 150 && release != 151)
audit(AUDIT_INST_VER_NOT_VULN, 'Exchange', version);
if (!empty_or_null(install["SP"]))
sp = install["SP"];
if (!empty_or_null(install["CU"]))
cu = install["CU"];
if ((release == 140 && sp != 3) ||
(release == 150 && cu != 20 && cu != 21) ||
(release == 151 && cu != 9 && cu != 10))
audit(AUDIT_INST_VER_NOT_VULN, 'Exchange', version);
if (release == 140) # Exchange Server 2010 SP3
fixedver = "14.3.417.1";
if (release == 150) # Exchange Server 2013
{
if (cu == 20)
fixedver = "15.0.1367.9";
else if (cu == 21)
fixedver = "15.0.1395.7";
}
else if (release == 151) # Exchange Server 2016
{
if (cu == 9)
fixedver = "15.1.1466.10";
else if (cu == 10)
fixedver = "15.1.1531.6";
}
if (fixedver && release == 140 && hotfix_is_vulnerable(path:hotfix_append_path(path:path, value:"Bin"), file:"ExSetup.exe", version:fixedver, bulletin:bulletin, kb:kb2))
{
set_kb_item(name:'SMB/Missing/' + bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else if (fixedver && hotfix_is_vulnerable(path:hotfix_append_path(path:path, value:"Bin"), file:"ExSetup.exe", version:fixedver, bulletin:bulletin, kb:kb))
{
set_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 | exchange_server | cpe:/a:microsoft:exchange_server |
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.44 Medium
EPSS
Percentile
97.4%