Vigil@nce - sympa: denial of service via CSRF countermeasures
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: Fedora.
Severity: 2/4.
Consequences: denial of service on server, denial of service on
service, denial of service on client.
Provenance: internet client.
Confidence: confirmed by the editor (5/5).
Creation date: 13/03/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger an overuse of system resources by sympa,
typically by tampering with the anti CSRF token, in order to
trigger a denial of service.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/sympa-denial-of-service-via-CSRF-countermeasures-31776