Security Updates for Microsoft SharePoint Server and Microsoft Project Server (November 2017)

2017-11-15T00:00:00
ID SMB_NT_MS17_NOV_OFFICE_SHAREPOINT.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2021-01-02T00:00:00

Description

The Microsoft SharePoint Server or Microsoft Project Server installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :

  • An elevation of privilege vulnerability exists in Microsoft Project when Microsoft Project Server does not properly manage user sessions. For this Cross-site Request Forgery(CSRF/XSRF) vulnerability to be exploited, the victim must be authenticated to (logged on) the target site. (CVE-2017-11876)

  • A remote code execution vulnerability exists when a user opens a specially crafted office file. (ADV170020).

                                        
                                            #
# (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(104570);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2017-11876");
  script_bugtraq_id(101754);
  script_xref(name:"MSKB", value:"4011267");
  script_xref(name:"MSKB", value:"4011244");
  script_xref(name:"MSKB", value:"4011245");
  script_xref(name:"MSKB", value:"4011257");
  script_xref(name:"MSFT", value:"MS17-4011267");
  script_xref(name:"MSFT", value:"MS17-4011244");
  script_xref(name:"MSFT", value:"MS17-4011245");
  script_xref(name:"MSFT", value:"MS17-4011257");
  script_xref(name:"IAVA", value:"2017-A-0337");

  script_name(english:"Security Updates for Microsoft SharePoint Server and Microsoft Project Server (November 2017)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft SharePoint Server or Microsoft Project Server
installation on the remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft SharePoint Server or Microsoft Project Server
installation on the remote host is missing a security
update. It is, therefore, affected by the following
vulnerability :

  - An elevation of privilege vulnerability exists in
    Microsoft Project when Microsoft Project Server does not
    properly manage user sessions. For this Cross-site
    Request Forgery(CSRF/XSRF) vulnerability to be
    exploited, the victim must be authenticated to (logged
    on) the target site.  (CVE-2017-11876)

  - A remote code execution vulnerability exists when a
    user opens a specially crafted office file. 
    (ADV170020).");
  # https://support.microsoft.com/en-us/help/4011267/descriptionofthesecurityupdateforwordautomationservicesonsharepointser
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?441fc23d");
  # https://support.microsoft.com/en-us/help/4011244/descriptionofthesecurityupdateforsharepointserver2016november14-2017
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4fbd25b4");
  # https://support.microsoft.com/en-us/help/4011245/description-of-the-security-update-for-sharepoint-enterprise-server-20
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?42a3373f");
  # https://support.microsoft.com/en-us/help/4011257/description-of-the-security-update-for-project-server-2013-november-14
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e718850e");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4011267
  -KB4011244
  -KB4011245
  -KB4011257");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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: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-2017-11876");

  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:"2017/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:project_server");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("microsoft_sharepoint_installed.nbin", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl", "microsoft_office_compatibility_pack_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("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS17-11";
kbs = make_list(
  '4011245', # SharePoint Enterprise Server 2013 SP1 w/ word automation services
  '4011267', # SharePoint Server 2010 SP2 w/ word automation services
  '4011244', # SharePoint Enterprise Server 2016
  '4011257'  # Project Server 2013 SP1
);

if (get_kb_item("Host/patch_management_checks"))
  hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_WARNING);

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, "Failed to determine the location of %windir%.");

registry_init();

var sps_2010_path, sps_2010_sp, sps_2010_edition;
var sps_2013_path, sps_2013_sp, sps_2013_edition;
var sps_2016_path, sps_2016_sp, sps_2016_edition;

xsrf = FALSE;
vuln = FALSE;
port = kb_smb_transport();

installs = get_installs(app_name:"Microsoft SharePoint Server", exit_if_not_found:TRUE);

foreach install (installs[1])
{
  if (install["Product"] == "2010")
  {
    sps_2010_path = install['path'];
    sps_2010_sp = install['SP'];
    sps_2010_edition = install['Edition'];
  }
  else if (install["Product"] == "2016")
  {
    sps_2016_path = install['path'];
    sps_2016_sp = install['SP'];
    sps_2016_edition = install['Edition'];
  }
  else if (install["Product"] == "2013")
  {
    sps_2013_path = install['path'];
    sps_2013_sp = install['SP'];
    sps_2013_edition = install['Edition'];
  }

}

######################################################################
# SharePoint Server 2010 SP2
######################################################################
if (sps_2010_path && sps_2010_sp == "2" && sps_2010_edition == "Server")
{
    path = hotfix_append_path(path:sps_2010_path, value:"WebServices\WordServer\Core");
    if (hotfix_check_fversion(file:"sword.dll", version:"14.0.7190.5000", min_version:"14.0.0.0", path:path, kb:"4011267", product:"Word Automation Services for SharePoint Server 2010 SP2") == HCF_OLDER)
      vuln = TRUE;
}

######################################################################
# Sharepoint Server 2013 SP1
######################################################################
if (sps_2013_path && sps_2013_sp == "1")
{
  if(sps_2013_edition == "Server")
  {
    path = hotfix_append_path(path:sps_2013_path, value:"WebServices\ConversionServices");
    if (hotfix_check_fversion(file:"msores.dll", version:"15.0.4963.1000", min_version:"15.0.0.0", path:path, kb:"4011245", product:"Microsoft SharePoint Server 2013 Service Pack 1 ") == HCF_OLDER)
      vuln = TRUE;

    # Project Server / KB 4011257
    path = hotfix_append_path(path:sps_2013_path, value:"Bin");
    if (hotfix_check_fversion(file:"Microsoft.Office.Project.Server.Library.dll", version:"15.0.4981.1000", min_version:"15.0.0.0", path:path, kb:"4011257", product:"Microsoft SharePoint Server 2013 Service Pack 1 ") == HCF_OLDER)
    {
      vuln = TRUE;
      xsrf = TRUE;
    }
  }
}

######################################################################
# SharePoint Server 2016
######################################################################
if (sps_2016_path && sps_2016_sp == "0" && sps_2016_edition == "Server")
{
  path = hotfix_append_path(path:sps_2016_path, value:"WebServices\ConversionServices");
  if (hotfix_check_fversion(file:"sword.dll", version:"16.0.4615.1000", min_version:"16.0.0.0", path:path, kb:"4011244", product:"Microsoft SharePoint Server 2016") == HCF_OLDER)
  {
    vuln = TRUE;
    xsrf = TRUE;
  }
}

if (vuln)
{
  if(xsrf) replace_kb_item(name:'www/'+port+'/XSRF', value:TRUE);

  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_warning();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}