Vulnerabilities > CVE-2014-3434 - Buffer Errors vulnerability in Symantec Endpoint Protection 11.0/12.0/12.1

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
symantec
CWE-119
nessus
exploit available

Summary

Buffer overflow in the sysplant driver in Symantec Endpoint Protection (SEP) Client 11.x and 12.x before 12.1 RU4 MP1b, and Small Business Edition before SEP 12.1, allows local users to execute arbitrary code via a long argument to a 0x00222084 IOCTL call.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Exploit-Db

descriptionSymantec Endpoint Protection 11.x, 12.x - Kernel Pool Overflow. CVE-2014-3434. Local exploit for windows platform
fileexploits/windows/local/34272.py
idEDB-ID:34272
last seen2016-02-03
modified2014-08-05
platformwindows
port
published2014-08-05
reporterryujin & sickness
sourcehttps://www.exploit-db.com/download/34272/
titleSymantec Endpoint Protection 11.x, 12.x - Kernel Pool Overflow
typelocal

Nessus

NASL familyWindows
NASL idSYMANTEC_ENDPOINT_PROT_CLIENT_SYM14-013.NASL
descriptionThe version of Symantec Endpoint Protection Client running on the remote host is either 11.x or 12.x prior to 12.1 RU4 MP1b. It is, therefore, affected by a local privilege escalation vulnerability. A flaw exists in the sysplant driver due to insufficient validation of external input. An attacker, using specially crafted IOCTL code, could cause a kernel pool overflow resulting in elevated privileges to SYSTEM.
last seen2020-06-01
modified2020-06-02
plugin id77050
published2014-08-07
reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/77050
titleSymantec Endpoint Protection Client < 12.1 RU4 MP1b (SYM14-013)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(77050);
  script_version("1.13");
  script_cvs_date("Date: 2018/11/15 20:50:29");

  script_cve_id("CVE-2014-3434");
  script_bugtraq_id(68946);
  script_xref(name:"CERT", value:"252068");
  script_xref(name:"EDB-ID", value:"34272");

  script_name(english:"Symantec Endpoint Protection Client < 12.1 RU4 MP1b (SYM14-013)");
  script_summary(english:"Checks the SEP Client version.");

  script_set_attribute(attribute:"synopsis", value:
"The version of Symantec Endpoint Protection Client installed on the
remote host is affected by a local privilege escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Symantec Endpoint Protection Client running on the
remote host is either 11.x or 12.x prior to 12.1 RU4 MP1b. It is,
therefore, affected by a local privilege escalation vulnerability.

A flaw exists in the sysplant driver due to insufficient validation of
external input. An attacker, using specially crafted IOCTL code, could
cause a kernel pool overflow resulting in elevated privileges to
SYSTEM.");
  # http://www.symantec.com/business/support/index?page=content&id=TECH223338
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1de9bbfe");
  # https://support.symantec.com/en_US/article.SYMSA1300.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?74aa12c5");
  script_set_attribute(attribute:"solution", value:"Upgrade to version 12.1 RU4 MP1b (12.1.4112.4156) or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  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:"vuln_publication_date", value:"2014/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:endpoint_protection");
  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("savce_installed.nasl");
  script_require_keys("Antivirus/SAVCE/version");
  script_require_ports(139, 445);

  exit(0);
}

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

app = 'Symantec Endpoint Protection Client';
vuln = FALSE;

display_ver = get_kb_item_or_exit('Antivirus/SAVCE/version');
edition = get_kb_item('Antivirus/SAVCE/edition');

if (isnull(edition)) edition = '';
else if (edition == 'sepsb') app += ' Small Business Edition';

major_ver = split(display_ver, sep:'.', keep:FALSE);
major_ver = int(major_ver[0]);

fixed_ver = '12.1.4112.4156';

if (report_paranoia < 2)
{
  registry_init();
  hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
  key = "SYSTEM\CurrentControlSet\services\SysPlant\Start";
  res = get_registry_value(handle:hklm, item:key);
  RegCloseKey(handle:hklm);
  close_registry();

  if (empty_or_null(res)) audit(AUDIT_NOT_INST, 'The Application and Device Control driver');
  if (res == 4) exit(0, 'The host is not affected because the Application and Device Control driver is disabled.');
}

# Version 11.x up to the fixed version are affected
if (major_ver >= 11 && ver_compare(ver:display_ver, fix:fixed_ver, strict:FALSE) == -1) vuln = TRUE;

# Small Business Edition version 12.1 is not affected
if (edition == 'sepsb' && ver_compare(ver:display_ver, fix:'12.1', strict:FALSE) >= 0) vuln = FALSE;

if (vuln)
{
  port = kb_smb_transport();

  if (report_verbosity > 0)
  {
    report =
      '\n  Product           : ' + app +
      '\n  Installed version : ' + display_ver +
      '\n  Fixed version     : ' + fixed_ver +
      '\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
}
else audit(AUDIT_INST_VER_NOT_VULN, app, display_ver);

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/127772/sep-overflow.txt
idPACKETSTORM:127772
last seen2016-12-05
published2014-08-05
reporterMatteo Memelli
sourcehttps://packetstormsecurity.com/files/127772/Symantec-Endpoint-Protection-11.x-12.x-Kernel-Pool-Overflow.html
titleSymantec Endpoint Protection 11.x / 12.x Kernel Pool Overflow