Vigil@nce - Sudo: privilege escalation via Nonexistent User
January 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Cyrus SASL.
Severity: 1/4.
Consequences: user access/rights.
Provenance: privileged shell.
Confidence: confirmed by the editor (5/5).
Creation date: 20/12/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions via Nonexistent User of Sudo,
in order to escalate his privileges.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Sudo-privilege-escalation-via-Nonexistent-User-31205