Vulnerabilities > CVE-2018-12245 - Untrusted Search Path vulnerability in Symantec Endpoint Protection

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
symantec
CWE-426
nessus
NVD
Published: 2018-11-29
Updated: 2018-12-28

Summary

Symantec Endpoint Protection prior to 14.2 MP1 may be susceptible to a DLL Preloading vulnerability, which in this case is an issue that can occur when an application being installed unintentionally loads a DLL provided by a potential attacker. Note that this particular type of exploit only manifests at install time; no remediation is required for software that has already been installed. This issue only impacted the Trialware media for Symantec Endpoint Protection, which has since been updated.

Vulnerable Configurations

Part Description Count
Application
Symantec
221

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leveraging/Manipulating Configuration File Search Paths
    This attack loads a malicious resource into a program's standard path used to bootstrap and/or provide contextual information for a program like a path variable or classpath. J2EE applications and other component based applications that are built from multiple binaries can have very long list of dependencies to execute. If one of these libraries and/or references is controllable by the attacker then application controls can be circumvented by the attacker. A standard UNIX path looks similar to this If the attacker modifies the path variable to point to a locale that includes malicious resources then the user unwittingly can execute commands on the attackers' behalf: This is a form of usurping control of the program and the attack can be done on the classpath, database resources, or any other resources built from compound parts. At runtime detection and blocking of this attack is nearly impossible, because the configuration allows execution.

Nessus

NASL familyWindows
NASL idSYMANTEC_ENDPOINT_PROT_CLIENT_SYMSA1468_2.NASL
descriptionThe version of Symantec Endpoint Protection (SEP) Client installed on the remote host is 12.1.x or 14.x prior to 14.2 MP1. It is, therefore, affected by an unspecified DLL preloading vulnerability. Note that Nessus has not tested for this issue but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id119617
published2018-12-13
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/119617
titleSymantec Endpoint Protection Client 12.1.x / 14.x < 14.2 MP1 DLL Preloading Vulnerability (SYMSA1468)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(119617);
  script_version("1.4");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-12245");
  script_bugtraq_id(105919);

  script_name(english:"Symantec Endpoint Protection Client 12.1.x / 14.x < 14.2 MP1 DLL Preloading Vulnerability (SYMSA1468)");
  script_summary(english:"Checks the SEP Client version.");

  script_set_attribute(attribute:"synopsis", value:
"The Symantec Endpoint Protection Client installed on the remote host
is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Symantec Endpoint Protection (SEP) Client installed 
on the remote host is 12.1.x or 14.x prior to 14.2 MP1. It is,
therefore, affected by an unspecified DLL preloading vulnerability.

Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.");
  # https://support.symantec.com/en_US/article.SYMSA1468.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5c1e347e");
  # https://support.symantec.com/en_US/article.TECH103088.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bcc5e230");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Symantec Endpoint Protection Client version 14.2 MP1 or
later.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-12245");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/13");

  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) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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("misc_func.inc");

app = 'Symantec Endpoint Protection Client';

display_ver = get_kb_item_or_exit('Antivirus/SAVCE/version');
edition = get_kb_item('Antivirus/SAVCE/edition');
if(get_kb_item('SMB/svc/ssSpnAv')) audit(AUDIT_INST_VER_NOT_VULN, "Symantec.cloud Endpoint Protection");

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

fixed_ver = NULL;

if (display_ver =~ "^12\.1\." ||
    display_ver =~ "^14\."
)
  fixed_ver = '14.2.0.1';
else
  audit(AUDIT_INST_VER_NOT_VULN, app, display_ver);

if (ver_compare(ver:display_ver, fix:fixed_ver, strict:FALSE) == -1)
{
  port = get_kb_item("SMB/transport");
  if (!port) port = 445;

  report =
    '\n  Product           : ' + app +
    '\n  Installed version : ' + display_ver +
    '\n  Fixed version     : ' + fixed_ver +
    '\n';
  security_report_v4(severity:SECURITY_WARNING, port:port, extra:report);
}
else audit(AUDIT_INST_VER_NOT_VULN, app, display_ver);

References