Nortel IP Phone UNIStim Open Audio Stream audio hijacking
| nortel-ipphone-unistim-audio-hijacking (37255) |  Medium Risk |
Description:
Multiple Nortel IP Phones could allow a remote attacker to open an audio channel on the phone and perform remote eavesdropping. By sending a specially-crafted "Open Audio Stream" message containing a spoofed UNIStim message ID that matches the ID between the server and the device, an attacker could open an audio channel and use the phone as a remote eavesdropping device.
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 2007008383 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Other
References:
- COMPASS SECURITY ADVISORY: October, 18th 2007, IP Phone Surveillance Mode at http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_surveillance_mode_v1.0.txt.
- Nortel Technical Support Security Advisory Bulletin 2007008383, UNIStim IP Phone Remote Eavesdrop Potential Vulnerability at http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654714.
- BID-26120: Nortel Networks Multiple UNIStim VoIP Products Remote Eavesdrop Vulnerability
- CVE-2007-5637: The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines allow remote attackers to eavesdrop on the physical environment via an Open Audio Stream message that enables surveillance mode. NOTE: issues relating to a small ID number space can be leveraged to make this attack easier.
- SA27234: Nortel Products Multiple Vulnerabilities
Reported:
Oct 17, 2007
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