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

Freely subscribe to our NEWSLETTER

Newsletter FR

Newsletter EN

Vulnérabilités

Unsubscribe

Vigil@nce - ICMP: denial of service via ICMP Type 3 Code 3, BlackNurse

January 2017 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

An attacker can send numerous ICMP Type 3 Code 3 packets to some
routers/firewalls, in order to trigger a denial of service.

Impacted products: ASA, IOS by Cisco, Cisco Router, FortiGate,
FortiGate Virtual Appliance, FortiOS, Palo Alto Firewall PA***,
PAN-OS.

Severity: 2/4.

Creation date: 16/11/2016.

DESCRIPTION OF THE VULNERABILITY

The ICMP protocol uses packets of Type 3 Code 3 to announce that a
port is unreachable. This packet is usually sent as a reply to the
sender of a packet sent to a closed TCP/UDP port.

However, when numerous ICMP Type 3 Code 3 packets are received,
some devices uselessly consume many resources to process them.

An attacker can therefore send numerous ICMP Type 3 Code 3 packets
to some routers/firewalls, in order to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/ICMP-denial-of-service-via-ICMP-Type-3-Code-3-BlackNurse-21138


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