Sun xVM VirtualBox Guest Additions < 2.0.12 / 3.0.10 Local DoS

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

include("compat.inc");

if (description)
{
  script_id(42831);
  script_version("1.14");
 script_cvs_date("Date: 2018/11/15 20:50:29");

  script_cve_id("CVE-2009-3940");
  script_bugtraq_id(37024);
  script_xref(name:"Secunia", value:"37363");

  script_name(english:"Sun xVM VirtualBox Guest Additions < 2.0.12 / 3.0.10 Local DoS");
  script_summary(english:"Checks version of Sun VirtualBox Guest Additions");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is running a set of virtualization utilities
that is affected by a local denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is running a version of Sun VirtualBox Guest
Additions earlier than 2.0.12 or 3.0.10. Such versions are potentially
affected by a local denial of service vulnerability.");
  script_set_attribute(attribute:"see_also", value:"https://download.oracle.com/sunalerts/1021114.1.html");
  script_set_attribute(attribute:"solution", value:"Upgrade to Sun VirtualBox Guest Additions 2.0.12, 3.0.10, or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/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:"plugin_publication_date", value:"2009/11/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sun:virtualbox");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2009-2018 Tenable Network Security, Inc.");

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

  exit(0);
}

include("global_settings.inc");
include("misc_func.inc");
include("smb_func.inc");
include("audit.inc");

name     = kb_smb_name();
port     = kb_smb_transport();
login    = kb_smb_login();
pass     = kb_smb_password();
domain   = kb_smb_domain();

if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');
rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
  NetUseDel();
  exit(1, "Can't connect to IPC$ share.");
}

# Connect to remote registry.
hklm = RegConnectRegistry(hkey:HKEY_LOCAL_MACHINE);
if (isnull(hklm))
{
  NetUseDel();
  exit(1, "Can't connect to remote registry.");
}

path = NULL;

key = 'SOFTWARE\\Sun\\VirtualBox Guest Additions';
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);

if (!isnull(key_h))
{
  path = RegQueryValue(handle:key_h, item:"InstallDir");
  if (path) path = path[1];

  RegCloseKey(handle:key_h);
}

RegCloseKey(handle:hklm);

if (isnull(path))
{
  NetUseDel();
  exit(0, "VirtualBox Guest Additions does not appear to be installed.");
}
NetUseDel(close:FALSE);

# Get the version info from VBoxDisp.dll.
share = ereg_replace(pattern:'^([A-Za-z]):.*', replace:"\1$", string:path);
dll = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:"\1\VBoxDisp.dll", string:path);

rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
  NetUseDel();
  exit(1, "Can't connect to '"+share+"' share.");
}

fh = CreateFile(
  file:dll,
  desired_access:GENERIC_READ,
  file_attributes:FILE_ATTRIBUTE_NORMAL,
  share_mode:FILE_SHARE_READ,
  create_disposition:OPEN_EXISTING
);
if (isnull(fh))
{
  NetUseDel();
  exit(1, "Could not access file " + dll + ".");
}

version = NULL;

#Grab the version info from VBoxDisp.dll
version = GetProductVersion(handle:fh);
CloseFile(handle:fh);
NetUseDel();

if (version)
{
  if (
    version =~ "^1\.6\." ||
    version =~ "^2\.(0\.([0-9]|10)[^0-9]|[12]\.)" ||
    version =~ "^3\.0\.[0-8][^0-9]"
  )
  {
    if (report_verbosity > 0)
    {
      report =
        '\n  Path               : ' + path +
        '\n  Installed version  : ' + version +
        '\n  Fixed version      : 2.0.12 / 3.0.10\n';
      security_warning(port:port, extra:report);
    }
    else security_warning(port);
    exit(0);
  }
  else exit(0, "The remote host is not affected.");
}
else exit(1, "Error retrieving version number from VirtualBox Guest Additions file: " + dll);