Microsoft Office Remote Code Execution Vulnerability (2731879)

# SPDX-FileCopyrightText: 2012 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.902920");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2012-2524");
  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:"2012-08-15 09:05:20 +0530 (Wed, 15 Aug 2012)");
  script_name("Microsoft Office Remote Code Execution Vulnerability (2731879)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2596615");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/54876");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2596754");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2553260");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2589322");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2687501");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2687510");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-057");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_office_products_version_900032.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("MS/Office/Ver");

  script_tag(name:"impact", value:"Successful exploitation could allow attackers to execute arbitrary code as
  the logged-on user.");

  script_tag(name:"affected", value:"- Microsoft Office 2007 Service Pack 3 and prior

  - Microsoft Office 2010 Service Pack 1 and prior");

  script_tag(name:"insight", value:"The flaw is due to an error when parsing CGM (Computer Graphics Metafile)
  files and can be exploited to corrupt memory via a specially crafted CGM file
  or Office document embedding CGM graphics content.");

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

  script_tag(name:"summary", value:"This host is missing an important security update according to
  Microsoft Bulletin MS12-057.");

  script_tag(name:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

officeVer = get_kb_item("MS/Office/Ver");
# nb: MS Office 2007, 2010
if(!officeVer || officeVer !~ "^1[24]\."){
  exit(0);
}

path = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion", item:"CommonFilesDir");
if(!path){
  exit(0);
}

foreach ver (make_list("OFFICE12", "OFFICE14"))
{
  offPath = path + "\Microsoft Shared\" + ver;
  dllVer = fetch_file_version(sysPath:offPath, file_name:"Mso.dll");

  if(dllVer)
  {
    if(version_in_range(version:dllVer, test_version:"12.0", test_version2:"12.0.6662.4999")||
       version_in_range(version:dllVer, test_version:"14.0", test_version2:"14.0.6129.4999"))
    {
      security_message( port: 0, data: "The target host was found to be vulnerable" );
      exit(0);
    }
  }
}

## Office system (MSCONV97) and Office 2010 (MSCONV)

filePath = path + "\Microsoft Shared\TextConv";
fileVer = fetch_file_version(sysPath:filePath, file_name:"msconv97.dll");
if(fileVer)
{
  if(version_in_range(version:fileVer, test_version:"2006.0", test_version2:"2006.1200.6662.4999") ||
     version_in_range(version:fileVer, test_version:"2010.0", test_version2:"2010.1400.6123.4999")){
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }
}