McAfee Virtual Technician McHealthCheck.dll ActiveX Control Save() Method Arbitrary File Overwrite (SB10040)

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


include("compat.inc");


if (description)
{
  script_id(65942);
  script_version("1.5");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2012-5879");
  script_bugtraq_id(58750);
  script_xref(name:"EDB-ID", value:"24907");
  script_xref(name:"MCAFEE-SB", value:"SB10040");

  script_name(english:"McAfee Virtual Technician McHealthCheck.dll ActiveX Control Save() Method Arbitrary File Overwrite (SB10040)");
  script_summary(english:"Checks control's file version");

  script_set_attribute(attribute:"synopsis", value:
"An ActiveX control installed on the remote Windows host can be abused
to overwrite arbitrary files.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host has a version of the McAfee Virtual Technician
/ ePolicy Orchestrator McHealthCheck.dll ActiveX control that allows
arbitrary files to be corrupted / overwritten due to a flaw in the
Save() method.

If an attacker can trick a user on the affected host into viewing a
specially crafted HTML document, this issue could potentially be
leveraged to overwrite files, potentially leading to remote code
execution.");
  script_set_attribute(attribute:"see_also", value:"https://kc.mcafee.com/corporate/index?page=content&id=SB10040");
  script_set_attribute(attribute:"solution", value:
"Upgrade to McAfee Virtual Technician 7.1 / ePolicy Orchestrator 1.1.0
or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-5879");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/03/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/03/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/04/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mcafee:mcafee_virtual_technician");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}

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

get_kb_item_or_exit("SMB/Registry/Enumerated");

registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
key = 'SOFTWARE\\Classes\\McHealthCheck.McHealthCheck\\CLSID\\';

clsid = get_registry_value(handle:hklm, item:key);

RegCloseKey(handle:hklm);

close_registry();

if (isnull(clsid)) audit(AUDIT_NOT_INST, 'McAfee Virtual Technician');

if (activex_init() != ACX_OK) audit(AUDIT_FN_FAIL,'activex_init');

info = '';

vuln_version = '6.5.0.2101';
fixed_version = '7.1';

file = activex_get_filename(clsid:clsid);

if (isnull(file))
{
  activex_end();
  audit(AUDIT_FN_FAIL, 'activex_get_filename');
}

if (!file)
{
  activex_end();
  audit(AUDIT_ACTIVEX_NOT_FOUND, clsid);
}

# Get its version.
version = activex_get_fileversion(clsid:clsid);
if (isnull(version))
{
  activex_end();
  audit(AUDIT_FN_FAIL, 'activex_get_fileversion');
}
if (version == "") audit(AUDIT_VER_FAIL, file);

if (ver_compare(ver:version, fix:vuln_version) <= 0)
{
  if (report_paranoia > 1 || activex_get_killbit(clsid:clsid) == 0)
  {
      info += '\n  Class identifier  : ' + clsid +
              '\n  Filename          : ' + file +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : ' + fixed_version + '\n';
   }
}

activex_end();

# Report findings.
if (info)
{
  if (report_paranoia > 1)
  {
    report = info +
      '\n' +
      'Note, though, that Nessus did not check whether the kill bit was\n' +
      "set for the control's CLSID because of the Report Paranoia setting" + '\n' +
      'in effect when this scan was run.\n';
  }
  else
  {
    report = info +
      '\n' +
      'Moreover, its kill bit is not set so it is accessible via Internet\n' +
      'Explorer.\n';
  }

  if (report_verbosity > 0) security_hole(port:kb_smb_transport(), extra:report);
  else security_hole(kb_smb_transport());

  exit(0);
}
else
{
  if (ver_compare(ver:version, fix:vuln_version) > 0)
    audit(AUDIT_INST_VER_NOT_VULN, 'McAfee Virtual Technician', version);
  else
    audit(AUDIT_ACTIVEX, version);
}