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
95.8%
The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests. An attacker who successfully exploited this vulnerability could perform script/content injection attacks and attempt to trick the user into disclosing sensitive information.
(CVE-2018-8448)
A remote code execution vulnerability exists in the way Microsoft Exchange software parses specially crafted email messages. 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, add, or delete data.
(CVE-2018-8265)
#
# (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(118008);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/20");
script_cve_id("CVE-2018-8265", "CVE-2018-8448");
script_xref(name:"MSKB", value:"4459266");
script_xref(name:"MSFT", value:"MS18-4459266");
script_name(english:"Security Updates for Exchange (October 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 :
- An elevation of privilege vulnerability exists when
Microsoft Exchange Outlook Web Access (OWA) fails to
properly handle web requests. An attacker who
successfully exploited this vulnerability could perform
script/content injection attacks and attempt to trick
the user into disclosing sensitive information.
(CVE-2018-8448)
- A remote code execution vulnerability exists in the way
Microsoft Exchange software parses specially crafted
email messages. 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, add, or delete data.
(CVE-2018-8265)");
# https://support.microsoft.com/en-us/help/4459266/description-of-the-security-update-for-microsoft-exchange-server-2013
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3ade9314");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security update to address this
issue:
-KB4459266");
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-2018-8265");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/09");
script_set_attribute(attribute:"patch_publication_date", value:"2018/10/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/09");
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 = 'MS18-10';
kb = "4340731";
kbs = make_list(kb);
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 != 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 == 150 && cu != 21) ||
(release == 151 && cu != 9 && cu != 10))
audit(AUDIT_INST_VER_NOT_VULN, 'Exchange', version);
if (release == 150) # Exchange Server 2013
{
if (cu == 21)
fixedver = "15.0.1395.8";
}
else if (release == 151) # Exchange Server 2016
{
if (cu == 9)
fixedver = "15.1.1466.12";
else if (cu == 10)
fixedver = "15.1.1531.7";
}
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 |
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
95.8%