Multiple Nortel IP Phones Open Audio Stream messages spoofing
| nortel-ipphone-audiostream-spoofing (42881) |  Low Risk |
Description:
Multiple Nortel IP Phones use a limited number of values in the 32-bit ID number field of an RUDP datagram. This could allow a remote attacker to spoof "Open Audio Stream" messages and launch further attacks against the affected device.
*CVSS:
| Base Score: | 2.9 |
| Access Vector: | Adjacent Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 2.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Other
Remedy:
Refer to Nortel Technical Support Security Advisory Bulletin 2007008383 for patch, upgrade, or suggested workaround information. See References.
References:
- COMPASS SECURITY ADVISORY: October, 18th 2007: IP Phone Surveillance Mode.
- Nortel Technical Support Security Advisory Bulletin 2007008383: UNIStim IP Phone Remote Eavesdrop Potential Vulnerability.
- BID-26120: Nortel Networks Multiple UNIStim VoIP Products Remote Eavesdrop Vulnerability
- CVE-2007-5638: 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, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages. NOTE: this can be leveraged for an eavesdropping attack by sending many Open Audio Stream messages.
- SA27234: Nortel Products Multiple Vulnerabilities
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
Reported:
Oct 18, 2007
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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.