Vulnerabilities > CVE-2018-8374 - Unspecified vulnerability in Microsoft Exchange Server 2016

047910
CVSS 4.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
low complexity
microsoft
nessus

Summary

A tampering vulnerability exists when Microsoft Exchange Server fails to properly handle profile data, aka "Microsoft Exchange Server Tampering Vulnerability." This affects Microsoft Exchange Server.

Vulnerable Configurations

Part Description Count
Application
Microsoft
2

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS18_AUG_EXCHANGE.NASL
descriptionThe 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
last seen2020-06-01
modified2020-06-02
plugin id111755
published2018-08-15
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/111755
titleSecurity Updates for Exchange (August 2018)
code
#
# (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("1.6");
  script_cvs_date("Date: 2019/11/04");

  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) 2018-2019 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');

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');
}