Vigil@nce - Cisco Nexus: denial of service via IS-IS
March 2017 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can send malicious IS-IS packets to Cisco Nexus, in order to trigger a denial of service.
Impacted products: Nexus by Cisco, NX-OS.
Creation date: 19/01/2017.
DESCRIPTION OF THE VULNERABILITY
The Cisco Nexus product has a service to manage received IS-IS packets.
However, when malicious IS-IS packets are received, a fatal error occurs.
An attacker can therefore send malicious IS-IS packets to Cisco Nexus, in order to trigger a denial of service.
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