Remotely exploitable vulnerability in SINEC INS allows attackers to access sensitive SFTP user config

Summary

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 3). The affected application does not properly validate authorization of a user to query the "/api/sftp/users" endpoint. This could allow an authenticated remote attacker to gain knowledge about the list of configured users of the SFTP service and also modify that configuration.

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