Vulnerabilities > CVE-2007-1756 - Remote Code Execution vulnerability in Microsoft Excel, Excel Viewer and Office

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
 script_id(25687);
 script_version("1.32");
 script_cvs_date("Date: 2018/11/15 20:50:30");

 script_cve_id("CVE-2007-1756", "CVE-2007-3029", "CVE-2007-3030");
 script_bugtraq_id(22555, 24801, 24803, 24843);
 script_xref(name:"MSFT", value:"MS07-036");
 script_xref(name:"MSKB", value:"936507");
 script_xref(name:"MSKB", value:"936509");
 script_xref(name:"MSKB", value:"936511");
 script_xref(name:"MSKB", value:"936513");
 

 script_name(english:"MS07-036: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (936542)");
 script_summary(english:"Determines the version of Excel.exe");

 script_set_attribute(attribute:"synopsis", value:
"Arbitrary code can be executed on the remote host through Microsoft
Excel.");
 script_set_attribute(attribute:"description", value:
"The remote host is running a version of Microsoft Excel that may allow
arbitrary code to be run.

To succeed, the attacker would have to send a rogue file to a user of
the remote computer and have it open it with Microsoft Excel.");
 script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2007/ms07-036");
 script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Excel 2000, XP, 2003 and
2007.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
 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:"2007/07/10");
 script_set_attribute(attribute:"patch_publication_date", value:"2007/07/10");
 script_set_attribute(attribute:"plugin_publication_date", value:"2007/07/10");

 script_set_attribute(attribute:"plugin_type", value:"local");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel_viewer");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);

 script_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");
 script_family(english:"Windows : Microsoft Bulletins");

 script_dependencies("smb_nt_ms02-031.nasl", "office_installed.nasl", "ms_bulletin_checks_possible.nasl");
 script_require_keys("SMB/MS_Bulletin_Checks/Possible");
 script_require_ports(139, 445, "Host/patch_management_checks");

 exit(0);
}

include("smb_func.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("misc_func.inc");
include("audit.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS07-036';
kbs = make_list("936507", "936509", "936511", "936513");
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

port = get_kb_item("SMB/transport");

#
# Excel
#
vuln = 0;
list = get_kb_list_or_exit("SMB/Office/Excel/*/ProductPath");
foreach item (keys(list))
{
  v = item - 'SMB/Office/Excel/' - '/ProductPath';
  if(ereg(pattern:"^9\..*", string:v))
  {
    # Excel 2000 - fixed in 9.0.0.8963
    office_sp = get_kb_item("SMB/Office/2000/SP");
    if (!isnull(office_sp) && office_sp == 3)
    {
      sub =  ereg_replace(pattern:"^9\.00?\.00?\.([0-9]*)$", string:v, replace:"\1");
      if(sub != v && int(sub) < 8963 ) {
        vuln++;
        info =
          '\n  Product           : Excel 2000' +
          '\n  Installed version : ' + v +
          '\n  Fixed version     : 9.0.0.8963\n';
        hotfix_add_report(info, bulletin:bulletin, kb:'936511');
      }
    }
  }
  else if(ereg(pattern:"^10\..*", string:v))
  {
    # Excel XP - fixed in 10.0.6832.0
    office_sp = get_kb_item("SMB/Office/XP/SP");
    if (!isnull(office_sp) && office_sp == 3)
    {
      middle =  ereg_replace(pattern:"^10\.0\.([0-9]*)\.[0-9]*$", string:v, replace:"\1");
      if(middle != v && int(middle) < 6832) {
        vuln++;
        info =
          '\n  Product           : Excel 2002' +
          '\n  Installed version : ' + v +
          '\n  Fixed version     : 10.0.6832.0\n';
        hotfix_add_report(info, bulletin:bulletin, kb:'936513');
      }
    }
  }
  else if(ereg(pattern:"^11\..*", string:v))
  {
    # Excel 2003 - fixed in 11.0.8142.0
    office_sp = get_kb_item("SMB/Office/2003/SP");
    if (!isnull(office_sp) && office_sp == 2)
    {
      middle =  ereg_replace(pattern:"^11\.0\.([0-9]*)\.[0-9]*$", string:v, replace:"\1");
      if(middle != v && int(middle) < 8142) {
        vuln++;
        info =
          '\n  Product           : Excel 2003' +
          '\n  Installed version : ' + v +
          '\n  Fixed version     : 11.0.8142.0\n';
        hotfix_add_report(info, bulletin:bulletin, kb:'936507');
      }
    }
  }
  else if(ereg(pattern:"^12\..*", string:v))
  {
    # Excel 2007 - fixed in 12.0.6024.5000
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (!isnull(office_sp) && office_sp == 0)
    {
      middle =  ereg_replace(pattern:"^12\.0\.([0-9]*)\.[0-9]*$", string:v, replace:"\1");
      low    =  ereg_replace(pattern:"^12\.0\.[0-9]*\.([0-9]*)$", string:v, replace:"\1");
      if(middle != v && ( int(middle) < 6024 || ( int(middle) == 6024 && int(low) < 5000 )) ) {
        vuln++;
        info =
          '\n  Product           : Excel 2007' +
          '\n  Installed version : ' + v +
          '\n  Fixed version     : 12.0.6024.5000\n';
        hotfix_add_report(info, bulletin:bulletin, kb:'936509');
      }
    }
  }
}
if (vuln)
{
  set_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
  hotfix_security_hole();
  exit(0);
}
audit(AUDIT_HOST_NOT, 'affected');

• name	Robert L. Hollis
  organization	ThreatGuard, Inc.

• name	Shane Shaffer
  organization	G2, Inc.

• comment	Microsoft Excel 2000 is installed
  oval	oval:org.mitre.oval:def:758

• comment	Microsoft Excel 2002 is installed
  oval	oval:org.mitre.oval:def:473

• comment	Microsoft Excel 2003 is installed
  oval	oval:org.mitre.oval:def:764

• comment	Microsoft Excel Viewer 2003 is installed
  oval	oval:org.mitre.oval:def:439

• comment	Microsoft Excel 2007 is installed
  oval	oval:org.mitre.oval:def:1745