Actu
Vigil@nce - FreeBSD: privilege escalation via grub2-bhyve Direct Commands
May 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: FreeBSD.
Severity: 2/4.
Consequences: administrator access/rights, privileged
access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 16/03/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass restrictions via
grub2-bhyve Direct Commands of FreeBSD, in order to escalate his
privileges on the host system.
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