Vigil@nce - Cisco Unified Communications Manager IM/PS: denial of service via SIP
October 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 SIP packet to Cisco Unified
Communications Manager IM/PS, in order to trigger a denial of
service.
– Impacted products: Cisco CUCM.
– Severity: 2/4.
– Creation date: 04/08/2016.
DESCRIPTION OF THE VULNERABILITY
The Cisco Unified Communications Manager IM and Presence Service
product has a service to manage received SIP packets.
However, when a malicious packet is received, a fatal error occurs.
An attacker can therefore send a malicious SIP packet to Cisco
Unified Communications Manager IM/PS, in order to trigger a denial
of service.
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