Evernote Detection (Windows)

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


include("compat.inc");


if (description)
{
  script_id(58290);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/31");

  script_name(english:"Evernote Detection (Windows)");
  script_summary(english:"Checks for Evernote in registry / on filesystem");

  script_set_attribute(attribute:"synopsis", value:"A cloud-based note taking application is installed on the remote host.");
  script_set_attribute(attribute:"description", value:
"Evernote is installed on this host. It is a cloud-based suite of
software for note taking and archiving.");
  script_set_attribute(attribute:"see_also", value:"http://www.evernote.com/evernote/");
  script_set_attribute(attribute:"solution", value:
"Make sure that use of this program agrees with your organization's
acceptable use and security policies.");
  script_set_attribute(attribute:"risk_factor", value:"None");

  script_set_attribute(attribute:"plugin_publication_date", value:"2012/03/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:evernote:evernote");
  script_set_attribute(attribute:"asset_inventory", value:"True");
  script_set_attribute(attribute:"asset_inventory_category", value:"software_enumeration");
  script_set_attribute(attribute:"agent", value:"windows");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2012-2023 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("global_settings.inc");
include("misc_func.inc");
include("smb_func.inc");
include("audit.inc");
include("install_func.inc");

app = "Evernote";

get_kb_item_or_exit("SMB/Registry/Enumerated");


kb_base = "SMB/Evernote";


# Connect to the appropriate share.
name    =  kb_smb_name();
port    =  kb_smb_transport();
#if (!get_port_state(port)) exit(0, "Port "+port+" is not open.");
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();

#soc = open_sock_tcp(port);
#if (!soc) exit(1, "Failed to open a socket on port "+port+".");

#session_init(socket:soc, hostname:name);
if(!smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');

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

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


# Find where it's installed.
path = NULL;

key = "SOFTWARE\Classes\evernote\shell\open\command";
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
if (!isnull(key_h))
{
  item = RegQueryValue(handle:key_h, item:NULL);
  if (!isnull(item))
    path = ereg_replace(pattern:'^"(.+)\\\\[^\\\\"]+".*$', replace:"\1", string:item[1]);

  RegCloseKey(handle:key_h);
}


if (isnull(path))
{
  clsid = NULL;

  foreach class (make_list("EvernoteIE.Addin", "EvernoteOL.Connect"))
  {
    key = "SOFTWARE\Classes\" + class + "\CLSID";
    key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
    if (!isnull(key_h))
    {
      item = RegQueryValue(handle:key_h, item:NULL);
      if (!isnull(item)) clsid = item[1];

      RegCloseKey(handle:key_h);
    }
    if (clsid) break;
  }

  if (clsid)
  {
    key = "SOFTWARE\Classes\CLSID\"+clsid+"\InprocServer32";
    key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
    if (!isnull(key_h))
    {
      item = RegQueryValue(handle:key_h, item:NULL);
      if (!isnull(item))
      {
        path = ereg_replace(pattern:'^(.+)\\\\[^\\\\]+\\..+$', replace:"\1", string:item[1]);
      }

      RegCloseKey(handle:key_h);
    }
  }
}
RegCloseKey(handle:hklm);

if (isnull(path))
{
  NetUseDel();
  exit(0, "No evidence of Evernote was found in the registry.");
}
NetUseDel(close:FALSE);


# Determine the version of the file.
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:path);
exe =  ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1\Evernote.exe", string:path);
NetUseDel(close:FALSE);

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:exe,
  desired_access:GENERIC_READ,
  file_attributes:FILE_ATTRIBUTE_NORMAL,
  share_mode:FILE_SHARE_READ,
  create_disposition:OPEN_EXISTING
);
if (isnull(fh))
{
  NetUseDel();
  exit(0, "Evernote is not installed, although traces of it exist in the registry.");
}

set_kb_item(name:kb_base+"/Installed", value:TRUE);
set_kb_item(name:kb_base+"/Path", value:path);

ver = GetFileVersion(handle:fh);
CloseFile(handle:fh);
NetUseDel();

if (!isnull(ver))
{
  version = join(sep:".", ver);
  set_kb_item(name:kb_base+"/Version", value:version);
}
else version = UNKNOWN_VER;

register_install(
  vendor:"Evernote",
  product:"Evernote",
  app_name:app,
  path:path,
  version:version,
  cpe: "cpe:/a:evernote:evernote");

report_installs(app_name:app, port:port);