Vigil@nce - GDM: privilege escalation via Autologin Lock Screen Bypass
February 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora.
Consequences: administrator access/rights, privileged access/rights, user access/rights.
Provenance: physical access.
Confidence: confirmed by the editor (5/5).
Creation date: 22/12/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions via Autologin Lock Screen Bypass of GDM, in order to escalate his privileges.
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