Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Elevation of Privilege Vulnerability (KB4011180)

# 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:sharepoint_server";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.812018");
  script_version("2025-08-05T05:45:17+0000");
  script_cve_id("CVE-2017-11820");
  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:"2025-08-05 05:45:17 +0000 (Tue, 05 Aug 2025)");
  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:"2017-10-20 12:55:00 +0000 (Fri, 20 Oct 2017)");
  script_tag(name:"creation_date", value:"2017-10-11 09:05:07 +0530 (Wed, 11 Oct 2017)");
  script_name("Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Elevation of Privilege Vulnerability (KB4011180)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft KB4011180");

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

  script_tag(name:"insight", value:"The flaw exists due to an error when Microsoft
  SharePoint Server does not properly sanitize a specially crafted web request
  to an affected SharePoint server.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  who successfully exploited the vulnerability to perform cross-site scripting
  attacks on affected systems and run script in the security context of the
  current user. The attacks could allow the attacker to read content that the
  attacker is not authorized to read, use the victim's identity to take actions
  on the SharePoint site on behalf of the user, such as change permissions and
  delete content, and inject malicious content in the browser of the user.");

  script_tag(name:"affected", value:"Microsoft SharePoint Enterprise Server 2013 Service Pack 1.");

  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_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/4011180");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/101097");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("gb_microsoft_sharepoint_smb_login_detect.nasl");
  script_mandatory_keys("microsoft/sharepoint/server/smb-login/detected");
  script_require_ports(139, 445);
  exit(0);
}

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

if(isnull(port = get_app_port(cpe:CPE, service:"smb-login")))
  exit(0);

if(!infos = get_app_version_and_location(cpe:CPE, port:port, exit_no_version:TRUE))
  exit(0);

shareVer = infos["version"];
path = infos["location"];
if(!path || "Could not find the install location" >< path){
  exit(0);
}

if(shareVer =~ "^15\.")
{
  path = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion",
                         item:"CommonFilesDir");
  if(path)
  {
    path = path + "\microsoft shared\Web Server Extensions\15\BIN";

    dllVer = fetch_file_version(sysPath:path, file_name:"Onetutil.dll");

    if(dllVer && version_in_range(version:dllVer, test_version:"15.0", test_version2:"15.0.4971.0999"))
    {
      report = 'File checked:     ' +  path + "\Onetutil.dll"+ '\n' +
               'File version:     ' +  dllVer  + '\n' +
               'Vulnerable range: 15.0 - 15.0.4971.0999' + '\n' ;
      security_message(port:port, data:report);
      exit(0);
    }
  }
}

exit(99);