Vulnerabilities > CVE-2020-5833 - Out-of-bounds Read vulnerability in Symantec Endpoint Protection Manager

047910
CVSS 3.3 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
local
low complexity
symantec
CWE-125
nessus
NVD
Published: 2020-05-11
Updated: 2020-05-14

Summary

Symantec Endpoint Protection Manager, prior to 14.3, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

Vulnerable Configurations

Part Description Count
Application
Symantec
42

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Nessus

NASL familyWindows
NASL idSYMANTEC_ENDPOINT_PROT_MGR_SYM_17-062.NASL
descriptionThe version of Symantec Endpoint Protection Manager (SEPM) installed on the remote host is prior to 14.3. It is therefore affected by the following vulnerabilities: - An out of bounds read error exists. An authenticated, local attacker can exploit this issue to disclose memory contents. (CVE-2020-5833) - A directory traversal vulnerability exists. An unauthenticated, remote attacker can exploit this issue to determine the size of files in a directory. (CVE-2020-5834) - An elevation of privilege vulnerability exists due to a race condition in client remote deployment. An authenticated, local attacker can exploit this issue to gain elevated privileges. (CVE-2020-5835) Note that Nessus has not tested for this issue but has instead relied only on the application
last seen2020-05-22
modified2020-05-15
plugin id136620
published2020-05-15
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/136620
titleSymantec Endpoint Protection Manager < 14.3 Multiple Vulnerabilities (SYMSA1762)
code
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(136620);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/21");

  script_cve_id("CVE-2020-5833", "CVE-2020-5834", "CVE-2020-5835");
  script_xref(name:"IAVA", value:"2020-A-0210");

  script_name(english:"Symantec Endpoint Protection Manager < 14.3 Multiple Vulnerabilities (SYMSA1762)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Symantec Endpoint Protection Manager installed on the remote host is affected by multiple 
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Symantec Endpoint Protection Manager (SEPM) installed on the remote host is prior to 14.3. It is
therefore affected by the following vulnerabilities:

  - An out of bounds read error exists. An authenticated, local attacker can exploit this issue to disclose
    memory contents. (CVE-2020-5833)

  - A directory traversal vulnerability exists. An unauthenticated, remote attacker can exploit this issue to
    determine the size of files in a directory. (CVE-2020-5834)

  - An elevation of privilege vulnerability exists due to a race condition in client remote deployment. An
    authenticated, local attacker can exploit this issue to gain elevated privileges. (CVE-2020-5835)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://support.broadcom.com/security-advisory/security-advisory-detail.html?notificationId=SYMSA1762
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?54057529");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Symantec Endpoint Protection Manager version 14.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-5834");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:endpoint_protection_manager");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("symantec_endpoint_prot_mgr_installed.nasl");
  script_require_keys("installed_sw/Symantec Endpoint Protection Manager");

  exit(0);
}

include("vcf.inc");

constraints = [
  { "fixed_version" : "14.3.558.0000" }
];

app_info = vcf::get_app_info(app:'Symantec Endpoint Protection Manager', win_local:TRUE);

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);

References