Vigil@nce - FreeBSD: read-write access via Jail Allow.mount
April 2021 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: 1/4.
Consequences: data reading, data creation/edition, data deletion.
Provenance: privileged shell.
Confidence: confirmed by the editor (5/5).
Creation date: 07/04/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass access restrictions via Jail Allow.mount of
FreeBSD, in order to read or alter data.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/FreeBSD-read-write-access-via-Jail-Allow-mount-35016