Vigil@nce - Cisco NX-OS: denial of service via DHCPv4
December 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 DHCPv4 packet to Cisco NX-OS, in
order to trigger a denial of service.
Impacted products: Nexus by Cisco, NX-OS.
Severity: 2/4.
Creation date: 06/10/2016.
DESCRIPTION OF THE VULNERABILITY
The Cisco NX-OS product has a service to manage received DHCPv4
packets.
However, when a malicious packet is received, a fatal error occurs.
An attacker can therefore send a malicious DHCPv4 packet to Cisco
NX-OS, in order to trigger a denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Cisco-NX-OS-denial-of-service-via-DHCPv4-20785