Kazoo v4.3.124 Release Notes

Release Date: 2020-10-13 // over 3 years ago
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    ๐Ÿ”„ Changes for 4.3.124

    ๐Ÿ”„ Changes to branch 4.3 after version 4.3.123.

    Commits

    HELP-17551: allow disabling voicemail callback - by James Aimonetti

    Prior to this change, an malicious caller could leave a voicemail with

    a bogus Caller ID number (typically an international number for

    fraud) to a compromised voicemail box. Calling back into the voicemail

    box, the malicious caller could select the callback option and place a

    call to the fraudulent number.

    If the account or owner of the voicemail box allowed international

    calling, the fraud would progress.

    This PR introduces two toggles to give system administrators more

    control over callback functionality.

    The first global config should_disable_callback can toggle whether

    to allow the caller to select the callback option in general. If set

    to true, the callback feature will be disable cluster-wide.

    The second global config should_disable_offnet_callback requires the

    caller to be using an authorized device. If set to true, the caller

    must place the call from a device known to the account (authorizing_id

    must be present).

    Presumably, if the malicious caller has compromised SIP credentials,

    they can place the fraudulent calls directly without the voicemail

    callback. It is recommended to at least toggle

    should_disable_offnet_callback to true.