The Nortel Communication Server 1000 is susceptible to a denial of service condition when flooded with packets.
3a1e612d60083c059d9753663e4abc70b615d2ef15c60154acdfb92999133c6a
#############################################################
#
# COMPASS SECURITY ADVISORY https://www.csnc.ch/
#
#############################################################
#
# Product: Telephony Server
# Vendor: Nortel
# Subject: Telephony Server Denial of Service
# Risk: High
# Effect: Currently exploitable
# Author: Cyrill Brunschwiler (cyrill.brunschwiler (at) csnc (dot) ch
# Date: October, 18th 2007
#
#############################################################
Introduction:
-------------
A malicious user who can send a flood of packets to specific E-LAN ports on the Telephony Server is able to crash the telephony application. The server needs to be rebooted to resume normal operation.
Nortel has noted this as:
Title: Potential CS1000 DoS Vulnerability
Number: 2007008384
https://support.nortel.com/go/main.jsp?cscat=SECUREADVISORY
Vulnerable:
-----------
Communication Server 1000
and others.
See associated products on the Nortel advisory.
Vulnerability Management:
-------------------------
June 2007: Vulnerability found
June 2007: Nortel Security notified
October 2007: Nortel Advisory available
October 2007: Compass Security Information
Remediation:
------------
Follow the recommended actions for the affected systems, as identified in the Nortel Advisory.
Reference:
https://www.csnc.ch/static/advisory/secadvisorylist.html