Microsoft Office Web Apps Multiple Vulnerabilities (3038999)

# SPDX-FileCopyrightText: 2015 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("1.3.6.1.4.1.25623.1.0.805149");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2015-0085", "CVE-2015-0086");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2015-03-11 13:16:13 +0530 (Wed, 11 Mar 2015)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Office Web Apps Multiple Vulnerabilities (3038999)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Bulletin MS15-022.");

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

  script_tag(name:"insight", value:"Multiple flaws are due,

  - An use-after-free error that is triggered when handling a specially crafted
  office file.

  - User-supplied input is not properly validated when handling a specially
  crafted rich text format file.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attacker to dereference already freed memory and potentially execute
  arbitrary code.");

  script_tag(name:"affected", value:"- Microsoft Office Web Apps Server Service on

  - Microsoft Office Web Apps 2010 Service Pack 2 and prior and Microsoft Office Web Apps 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:"http://support.microsoft.com/kb/2956158");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2956069");
  script_xref(name:"URL", value:"https://technet.microsoft.com/library/security/MS15-022");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 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);
}

if(webappVer =~ "^14\..*")
{
  ## Microsoft Office Web Apps 2010
  dllVer = fetch_file_version(sysPath:path,
           file_name:"\14.0\WebServices\ConversionService\Bin\Converter\sword.dll");
  if(dllVer)
  {
    if(version_in_range(version:dllVer, test_version:"14.0", test_version2:"14.0.7145.4999"))
    {
      security_message( port: 0, data: "The target host was found to be vulnerable" );
      exit(0);
    }
  }
}

## Microsoft Office Web Apps 2013
if(webappVer =~ "^15\..*")
{
  path = path + "\PPTConversionService\bin\Converter\";

  dllVer = fetch_file_version(sysPath:path, file_name:"msoserver.dll");
  if(dllVer)
  {
    if(version_in_range(version:dllVer, test_version:"15.0", test_version2:"15.0.4701.999"))
    {
      security_message( port: 0, data: "The target host was found to be vulnerable" );
      exit(0);
    }
  }
}

exit(99);