Vigil@nce - XAR: privilege escalation via Package Signature Validation
March 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: Fedora.
Severity: 2/4.
Consequences: user access/rights, data creation/edition.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 17/01/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions via Package Signature
Validation of XAR, in order to escalate his privileges.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/XAR-privilege-escalation-via-Package-Signature-Validation-31356