SB2020021324 - Multiple vulnerabilities in Symantec Endpoint Protection and Endpoint Protection Small Business Edition



SB2020021324 - Multiple vulnerabilities in Symantec Endpoint Protection and Endpoint Protection Small Business Edition

Published: February 13, 2020

Security Bulletin ID SB2020021324
Severity
Medium
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Medium 14% Low 86%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2020-5826)

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

The vulnerability exists due to a boundary condition within the "AvHostPlugin.dll". A local user can trigger out-of-bounds read error and read contents of memory on the system.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-5825)

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

The vulnerability exists due to missing authentication in the "AvHostPlugin.dll" module. A local user can overwrite existing files on the resident system without proper privileges and cause a denial of service condition on the target system.


3) Input validation error (CVE-ID: CVE-2020-5824)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the "AvHostPlugin.dll" module. A local user can cause a denial of service condition on the target system.


4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-5823)

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

The vulnerability exists due to improper permissions check within the "ccJobMgr.dll" module. A local user can compromise the software application to gain elevated access to resources that are normally protected from an application or user.


5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-5822)

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

The vulnerability exists due to improper permissions check within the "ccSvc.dll" module. A local user can compromise the software application to gain elevated access to resources that are normally protected from an application or user.


6) Insecure DLL loading (CVE-ID: CVE-2020-5821)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local user can use a specially crafted .dll file and execute arbitrary code on the target system.


7) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-5820)

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

The vulnerability exists due to improper permissions check within the AvHostPlugin.dll. A local user can compromise the software application to gain elevated access to resources that are normally protected from an application or user.


Remediation

Install update from vendor's website.