CVE-2020-26941 Information

Description

A local (authenticated) low-privileged user can exploit a behavior in an ESET installer to achieve arbitrary file overwrite (deletion) of any file via a symlink due to insecure permissions. The possibility of exploiting this vulnerability is limited and can only take place during the installation phase of ESET products. Furthermore exploitation can only succeed when Self-Defense is disabled. Affected products are: ESET NOD32 Antivirus ESET Internet Security ESET Smart Security ESET Smart Security Premium versions 13.2 and lower; ESET Endpoint Antivirus ESET Endpoint Security ESET NOD32 Antivirus Business Edition ESET Smart Security Business Edition versions 7.3 and lower; ESET File Security for Microsoft Windows Server ESET Mail Security for Microsoft Exchange Server ESET Mail Security for IBM Domino ESET Security for Kerio ESET Security for Microsoft SharePoint Server versions 7.2 and lower.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Reference

https://support.eset.com/en/ca7794-local-privilege-escalation-vulnerability-fixed-in-eset-products-for-windows

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.5