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  • Security Vulnerabilities - Mitel Server

    I'm getting hit hard about ShoreTel/Mitel server security Vulnerabilities. Is there a good document that discusses Disable TLS / SSL TLS version 1.2, FTP, disable Telnet, etc?? I have mutilple servers and not sure what part of these ShoreTel actual uses for me to disable

  • #2
    I'd like to know this too. In particular I'd like to know if I can disable SMB1 on the Connect Director server.


    • #3
      I am not aware of an official document. I can answer a couple of those and the rest someone would have to do some testing on or be able to clarify from past experience. The big caveat here is that turning most of those things off will place you outsides the bounds of the documented path from ShoreTel / Mitel, which means if you run into trouble TACs response will be to put it back the way it is documented. That being said, newer versions of Connect resolve many of these issues so if you are still on 14.2 that would be the place to start.

      FTP cannot be disabled if you want MGCP phones to work, or for phones and appliances to be able to upload logs or packet captures.
      Telnet is not necessary to have installed on the server (either the server or the client, we use Putty as a client and never install the windows role)
      I believe that Connect gets you past a need for TLS/SSl 1.2 and older

      I honestly am not sure about SMB1


      • #4
        network scan results According to its self-reported version in its banner, Dropbear SSH running on the remote host is prior to 2016.74. It is, therefore, affected by the following vulnerabilities : - A format string flaw exists due to improper handling of string format specifiers (e.g., %s and %x) in usernames and host arguments. An unauthenticated, remote attacker can exploit this to execute arbitrary code with root privileges. (CVE-2016-7406) - A flaw exists in dropbearconvert due to improper handling of specially crafted OpenSSH key files. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2016-7407) - A flaw exists in dbclient when handling the -m or -c arguments in scripts. An unauthenticated, remote attacker can exploit this, via a specially crafted script, to execute arbitrary code. (CVE-2016-7408) - A flaw exists in dbclient or dropbear server if they are compiled with the DEBUG_TRACE option and then run using the -v switch. A local attacker can exploit this to disclose process memory. (CVE-2016-7409)


        • #5
          We are running 14.2 / 49.7200 build, with that said I have a few questions.
          1. If I uninstall the role/feature (Telnet Client) from the server it won't prevent me from telnet to the switches??
          2. Enabling telnet on the switch (ipbxctl telneton) command will still work??
          3. Removing the Telnet client from the server just prevents me from using the cmd prompt on the server to telnet, it doesn't stop me from using putty to telnet, correct?