Symantec Encryption Desktop 10.x < 10.3.2 MP3 DoS

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

include("compat.inc");

if (description)
{
  script_id(77406);
  script_version("1.6");
  script_cvs_date("Date: 2018/08/01 17:36:15");

  script_cve_id("CVE-2014-3436");
  script_bugtraq_id(69259);

  script_name(english:"Symantec Encryption Desktop 10.x < 10.3.2 MP3 DoS");
  script_summary(english:"Checks the Symantec Encryption Desktop version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a data encryption application installed that is
affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Symantec Encryption Desktop installed on the remote
host is version 10.x prior to 10.3.2 MP3. It is, therefore, affected
by a denial of service vulnerability. The flaw is due to a failure to
properly limit decompressed file size during the decryption process of
a specially crafted encrypted email. Decryption of an excessively
large compressed message could cause high memory and CPU usage
resulting in a denial of service as the system becomes unresponsive
during the decompression attempt.");
  # http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20140821_00
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8e650426");
  script_set_attribute(attribute:"solution", value:"Upgrade to Symantec Encryption Desktop 10.3.2 MP3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:"2014/08/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:encryption_desktop");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:pgp_desktop");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("symantec_encryption_desktop_installed.nbin");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Symantec Encryption Desktop");

  exit(0);
}

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

get_kb_item_or_exit("SMB/Registry/Enumerated");

appname = 'Symantec Encryption Desktop';
get_install_count(app_name:appname, exit_if_zero:TRUE);

install = get_single_install(app_name:appname,exit_if_unknown_ver:TRUE);
version = install["version"];
path    = install["path"];
port    = get_kb_item("SMB/transport");
if (!port) port = 445;

# For this version line, we NEED the build #
if(version == "10.3.2")
  audit(AUDIT_VER_NOT_GRANULAR,appname+"/ PGP Desktop",version);

if (
  # 10.0.0 - 10.3.1 vulnerable
  (ver_compare(ver:version,fix:"10.0.0",strict:FALSE) >= 0 &&
   ver_compare(ver:version,fix:"10.3.2",strict:FALSE) <  0)
  ||
  # 10.3.2 before build 15495 vulnerable
  (version =~ "^10\.3\.2\." &&
   ver_compare(ver:version,fix:"10.3.2.15495",strict:TRUE) < 0)
)
{
  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + version+
    '\n  Fixed version     : 10.3.2 MP3 (Build 15495)';
}
else audit(AUDIT_INST_PATH_NOT_VULN, appname+"/ PGP Desktop", version, path);

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