CVE-2017-16031: Use of Insufficiently Random Values

June 4, 2018 (updated July 31, 2018)

Socket depends on Math.random() to create socket IDs, the IDs are predictable. An attacker is able to guess the socket ID and gain access to socket.io servers, potentially obtaining sensitive information.

References

github.com/socketio/socket.io/commit/67b4eb9abdf111dfa9be4176d1709374a2b4ded8
github.com/socketio/socket.io/issues/856
github.com/socketio/socket.io/pull/857
nvd.nist.gov/vuln/detail/CVE-2017-16031

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