CVE-2020-36160 Information

Description

An issue was discovered in Veritas System Recovery before 21.2. On start-up it loads the OpenSSL library from \usr\local\ssl. This library attempts to load the from \usr\local\ssl\openssl.cnf configuration file which does not exist. By default on Windows systems users can create directories under C:. A low privileged user can create a C:\usr\local\ssl\openssl.cnf configuration file to load a malicious OpenSSL engine resulting in arbitrary code execution as SYSTEM when the service starts. This gives the attacker administrator access on the system allowing the attacker (by default) to access all data and installed applications etc. If the system is also an Active Directory domain controller then this can affect the entire domain.

CVSS Vector

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

Reference

https://www.veritas.com/content/support/en_US/security/VTS20-017

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8