Microsoft Office Web Apps XSS Elevation of Privileges Vulnerability (KB3178725)

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:microsoft:office_web_apps";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.810693");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2017-0195");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-04-20 18:20:00 +0000 (Thu, 20 Apr 2017)");
  script_tag(name:"creation_date", value:"2017-04-13 11:14:05 +0530 (Thu, 13 Apr 2017)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Office Web Apps XSS Elevation of Privileges Vulnerability (KB3178725)");

  script_tag(name:"summary", value:"This host is missing an important security
  update for Microsoft Office Web Apps according to Microsoft security update
  KB3178725");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists when an Office Web Apps server
  does not properly sanitize a specially crafted request.");

  script_tag(name:"impact", value:"An authenticated attacker could exploit the
  vulnerability by sending a specially crafted request to an affected Office Web
  Apps server. The attacker who successfully exploited this vulnerability could then
  perform cross-site scripting attacks on affected systems and run script in the
  security context of the current user.");

  script_tag(name:"affected", value:"Microsoft Office Web Apps Server 2013 Service Pack 1 and prior.");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/3178725");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("gb_ms_office_web_apps_detect.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("MS/Office/Web/Apps/Ver");
  exit(0);
}

include("smb_nt.inc");
include("host_details.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if( ! infos = get_app_version_and_location( cpe:CPE, exit_no_version:TRUE ) ) exit( 0 );
webappVer = infos["version"];
path = infos["location"];
if(!path || "Could not find the install location" >< path){
  exit(0);
}

##Microsoft Office Web Apps Server 2013
if(webappVer =~ "^(15\.)")
{
  dllVer = fetch_file_version(sysPath:path,
           file_name:"\15.0\WebServices\ConversionService\Bin\Converter\sword.dll");

  if(dllVer)
  {
    if(version_in_range(version:dllVer, test_version:"15.0", test_version2:"15.0.4919.0999"))
    {
      report = 'File checked:     ' +  path + "15.0\WebServices\ConversionService\Bin\Converter\sword.dll" + '\n' +
               'File version:     ' +  dllVer  + '\n' +
               'Vulnerable range: ' + "15.0 - 15.0.4919.0999" + '\n' ;
      security_message(data:report);
      exit(0);
    }
  }
}

exit(99);