Vigil@nce - MIT krb5: denial of service via KDC TGT Only
September 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can send a malicious query to MIT krb5, in order to
trigger a KDC denial of service.
Impacted products: Fedora, MIT krb5, openSUSE Leap.
Severity: 2/4.
Creation date: 22/07/2016.
DESCRIPTION OF THE VULNERABILITY
The MIT krb5 product can be configured so anonymous client
principals are restricted to obtaining TGT only.
However, in this case, a client can stop the KDC.
An attacker can therefore send a malicious query to MIT krb5, in
order to trigger a KDC denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/MIT-krb5-denial-of-service-via-KDC-TGT-Only-20194