Rechercher
Contactez-nous Suivez-nous sur Twitter En francais English Language
 

Freely subscribe to our NEWSLETTER

Newsletter FR

Newsletter EN

Vulnérabilités

Unsubscribe

Vigil@nce - FreeRADIUS: incomplete validation of X.509 certificate for TLS

July 2015 by Vigil@nce

This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can use X.509 certificates from revoked CA in order to
be accepted by FreeRADIUS.

Impacted products: FreeRADIUS

Severity: 1/4

Creation date: 22/06/2015

DESCRIPTION OF THE VULNERABILITY

The FreeRADIUS product may use CRLs to validate the X.509
certificates used in TLS connections.

However, certificate lookup in CRLs is done only for leaf
certificates (for server or client), and not for the intermediate
CA certificates. So certificates which have been issued by a
revoked CA remains approved. (A whole CA may be revoked after an
incident which creates doubts about the certification private key
secrecy.)

An attacker can therefore use X.509 certificates from revoked CA
in order to be accepted by FreeRADIUS.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/FreeRADIUS-incomplete-validation-of-X-509-certificate-for-TLS-17190


See previous articles

    

See next articles


Your podcast Here

New, you can have your Podcast here. Contact us for more information ask:
Marc Brami
Phone: +33 1 40 92 05 55
Mail: ipsimp@free.fr

All new podcasts