Flexera AdminStudio LaunchProcess Function ActiveX Control Remote Command Execution

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




include("compat.inc");

if (description)
{
  script_id(62392);
  script_version("1.14");
  script_cvs_date("Date: 2019/12/04");

  script_cve_id("CVE-2011-2657");
  script_bugtraq_id(50274);
  script_xref(name:"EDB-ID", value:"19718");

  script_name(english:"Flexera AdminStudio LaunchProcess Function ActiveX Control Remote Command Execution");
  script_summary(english:"Checks version of ActiveX Control");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has software installed that is affected by a remote
command execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host has the Flexera AdminStudio LaunchHelp ActiveX control
installed.  The control is affected by a remote command execution
vulnerability that can be triggered by sending a directory traversal
string to the 'LaunchProcess()' function.

By tricking a victim into visiting a specially crafted page, an attacker
may be able to execute arbitrary commands on the host subject to the
privileges of the user.");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-318/");
  # http://kb.flexerasoftware.com/selfservice/viewContent.do?externalId=Q201079
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f940fbc9");
  script_set_attribute(attribute:"solution", value:
"Apply the hotfix from Flexera.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-2657");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'AdminStudio LaunchHelp.dll ActiveX Arbitrary Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:flexera:adminstudio");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:novell:zenworks_configuration_management");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2012-2019 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");

clsid = '{7A758D94-E900-11D5-8467-00B0D023B202}';

if (activex_init() != ACX_OK) exit(1, "activex_init() failed.");

info = '';

fix = '10.1.0.0';

file = activex_get_filename(clsid:clsid);
if (isnull(file))
{
  activex_end();
  exit(1, "activex_get_filename() returned NULL.");
}
if (!file)
{
  activex_end();
  audit(AUDIT_ACTIVEX_NOT_FOUND, clsid);
}

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

if (version =~ "^(9|10)\." && ver_compare(ver:version, fix:fix) == -1)
{
  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     : ' + fix + '\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_warning(port:kb_smb_transport(), extra:report);
  else security_warning(kb_smb_transport());

  exit(0);
}
else
{
  if(ver_compare(ver:version, fix:fix) >= 0)
    audit(AUDIT_INST_VER_NOT_VULN, file, version);
  else
    exit(0, "The " + file + " control is installed, but its kill bit is set.");
}