SB2020051145 - Multiple vulnerabilities in Symantec Endpoint Protection and Symantec Endpoint Protection Manager

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Main Vulnerability Database SB2020051145

SB2020051145 - Multiple vulnerabilities in Symantec Endpoint Protection and Symantec Endpoint Protection Manager

Published: May 11, 2020 Updated: May 11, 2020

Security Bulletin ID SB2020051145
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 20% Low 80%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2020-5833)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary condition. A local user can run a specially crafted program to trigger an out-of-bounds read error and read contents of memory on the system.


2) Path traversal (CVE-ID: CVE-2020-5834)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.


3) Race condition (CVE-ID: CVE-2020-5835)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.


4) Improper access control (CVE-ID: CVE-2020-5836)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system

The vulnerability exists due to application can reset ACL for files as a limited user, when the Symantec Endpoint Protection's Tamper Protection feature is disabled. As a result, a local user can  elevate privileges on the system.


5) UNIX symbolic link following (CVE-ID: CVE-2020-5837)

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions when writing to log files. A local user can create a symbolic link to a critical file on the system and overwrite it.

Successful exploitation of the vulnerability may lead to privilege escalation.

Remediation

Install update from vendor's website.

References