A security issue has been reported in Cisco IP Phone 7921, which potentially can be exploited by malicious people to disclose sensitive information.
The problem is that server certificates are not validated when using the PEAP protocol. This can be exploited to e.g. gain knowledge of authentication credentials when a user is tricked into connecting to a malicious authentication server.
Solution: The vendor is reportedly working on a update and recommends using EAP-TLS instead of PEAP.
Provided and/or discovered by: Unknown researchers reported via ZDNet's Zero Day blog.
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Subject: Cisco IP Phone 7921 Insecure PEAP Implementation
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