CWE
310 200
Advisory Published
Updated

CVE-2007-5638: Infoleak

First published: Tue Oct 23 2007(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Nortel Multimedia Communication Server 5100
Nortel Multimedia Communications Server
Nortel CS1000=1000e
Nortel CS1000=1000m
Nortel CS1000=1000s
Nortel CS1000=2100
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 WLAN Handset 2210
Nortel WLAN Handset 2211
Nortel WLAN Handset 2212
Nortel WLAN Handset 6120
Nortel WLAN Handset 6140
Nortel Business Communications Manager=50
Nortel Business Communications Manager=50a
Nortel Business Communications Manager=50e
Nortel Business Communications Manager=200
Nortel Business Communications Manager=400
Nortel Business Communications Manager=1000
Nortel Business Communications Manager=srg50
Nortel Business Communications Manager=srg200
Nortel Centrex IP Client Manager
Nortel Centrex IP Element Manager
Nortel Meridian
Nortel Meridian
Nortel Meridian
Nortel Meridian
Nortel Meridian=cs2100
Nortel Mobile Voice Client 2050

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Frequently Asked Questions

  • What is the severity of CVE-2007-5638?

    The severity of CVE-2007-5638 is considered moderate as it allows for potential remote attacks through exploitation of ID number field limitations.

  • How do I fix CVE-2007-5638?

    To fix CVE-2007-5638, ensure that your Nortel products are updated to the latest firmware version that addresses this vulnerability.

  • What Nortel products are affected by CVE-2007-5638?

    Affected products include Nortel IP Softphone 2050, IP Phone 1140E, and various models from the Nortel Business Communications Manager and Meridian series.

  • Can CVE-2007-5638 be exploited remotely?

    Yes, CVE-2007-5638 can be exploited remotely due to its nature of allowing attackers to guess ID numbers in RUDP datagrams.

  • What are the potential impacts of CVE-2007-5638?

    The potential impacts of CVE-2007-5638 include unauthorized access and the ability to disrupt communication services through successful attacks.

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