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Vigil@nce - Cisco IOS: crosstalk via H.323 Multicast MoH

August 2012 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

When CUCM (Cisco Unified Communications Manager) is configured
with a multicast H.323 music on hold, an attacker can listen to
other talks.

Severity: 2/4

Creation date: 07/08/2012

IMPACTED PRODUCTS

 Cisco IOS
 Cisco Router

DESCRIPTION OF THE VULNERABILITY

The CUCM (Cisco Unified Communications Manager) product can be
configured with several types of music on hold:
 unicast (one recipient)
 multicast SIP
 multicast H.323

The Cisco IOS system processes multicast H.323 music on hold.
However, in this case, an attacker can listen to other talks.

Technical details are unknown.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/Cisco-IOS-crosstalk-via-H-323-Multicast-MoH-11825


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