Vigil@nce - Cisco IOS, IOS XE: denial of service via DHCPv6
May 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 DHCPv6 packet to Cisco IOS or IOS
XE, in order to trigger a denial of service.
– Impacted products: Cisco Catalyst, IOS Cisco, IOS XE Cisco, Cisco
Router.
– Severity: 2/4.
– Creation date: 24/03/2016.
DESCRIPTION OF THE VULNERABILITY
The Cisco IOS or IOS XE product has a service to manage received
DHCPv6 packets.
However, when a malicious packet is received, a fatal error occurs.
An attacker can therefore send a malicious DHCPv6 packet to Cisco
IOS or IOS XE, in order to trigger a denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Cisco-IOS-IOS-XE-denial-of-service-via-DHCPv6-19218