Nortel IP Phone UNIStim packet spoofing denial of service

nortel-ipphone-spoof-dos (37253) The risk level is classified as LowLow Risk

Description:

Multiple Nortel IP Phones are vulnerable to a denial of service attack, caused by improper handling of spoofed packets. By flooding a vulnerable device with valid UNIStim messages containing a spoofed server source address, a remote attacker could cause the device to become unresponsive. The device must be rebooted to regain normal functionality.

Platforms Affected:

  • Nortel, Business Communications Manager 1000
  • Nortel, Business Communications Manager 200
  • Nortel, Business Communications Manager 400
  • Nortel, Business Communications Manager 50
  • Nortel, Business Communications Manager 50a
  • Nortel, Business Communications Manager 50e
  • Nortel, Business Communications Manager SRG200
  • Nortel, Business Communications Manager SRG50
  • Nortel, Centrex IP Client Manager
  • Nortel, Centrex IP Element Manager
  • Nortel, CS1000e
  • Nortel, CS1000m
  • Nortel, cs1000s
  • Nortel, CS2100
  • Nortel, IP Audio Conference Phone 2033
  • Nortel, IP Phone 1110
  • Nortel, IP Phone 1120E
  • Nortel, IP Phone 1140E
  • Nortel, IP Phone 1150E
  • Nortel, IP Phone 2001
  • Nortel, IP Phone 2002
  • Nortel, IP Phone 2004
  • Nortel, IP Phone 2007
  • Nortel, Meridian Option 11C
  • Nortel, Meridian Option 51C
  • Nortel, Meridian Option 61C
  • Nortel, Meridian Option 81C
  • Nortel, Meridian SL100
  • Nortel, Mobile Voice Client 2050
  • Nortel, Multimedia Communication Server 5100
  • Nortel, Multimedia Communication Server 5200
  • Nortel, WLAN Handset 2210
  • Nortel, WLAN Handset 2211
  • Nortel, WLAN Handset 2212
  • Nortel, WLAN Handset 6120
  • Nortel, WLAN Handset 6140

Remedy:

Refer to Nortel Technical Support Security Advisory Bulletin 2007008386 for patch, upgrade, or suggested workaround information. See References.

Consequences:

Denial of Service

References:

Reported:

Oct 17, 2007

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page