Advisory Details

February 11th, 2020

Symantec Endpoint Protection AvHostPlugin Missing Authentication Denial-of-Service Vulnerability

ZDI-20-221
ZDI-CAN-9395

CVE ID CVE-2020-5824
CVSS SCORE 5.5, (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
AFFECTED VENDORS Symantec
AFFECTED PRODUCTS Endpoint Protection
VULNERABILITY DETAILS

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Symantec Endpoint Protection. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the AvHostPlugin.dll module. By invoking a method of a COM class, an attacker can delete arbitrary files. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS Symantec has issued an update to correct this vulnerability. More details can be found at:
https://support.symantec.com/us/en/article.SYMSA1505.html
DISCLOSURE TIMELINE
  • 2019-10-17 - Vulnerability reported to vendor
  • 2020-02-11 - Coordinated public release of advisory
CREDIT Z0mb1E
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