Unable to upload file with FTPS: 550 The supplied message is incomplete. The signature was not verified.

Created:

2016-11-16 13:24:09 UTC

Modified:

2017-04-24 11:03:11 UTC

0

Was this article helpful?


Have more questions?

Submit a request

Unable to upload file with FTPS: 550 The supplied message is incomplete. The signature was not verified.

Applicable to:

  • Plesk 12.0 for Windows
  • Plesk 12.5 for Windows

Symptoms

  • Unable to upload file with FTPS:
        Response:   125 Data connection already open; Transfer starting.
    Response: 550
    Error: File transfer failed
    Status: Starting upload of C:\ est.txt
    Status: Retrieving directory listing...
  • Errors in FTP client logs:
     Response: 550 The supplied message is incomplete. The signature was not verified. 
    Error: File transfer failed
  • Cannot connect to the server via TLS v1.2 protocol:
    # openssl s_client -connect example.com:443 -tls1_2
    CONNECTED(00000003)
    write:errno=104
    ---
    no peer certificate available
    ---
    No client certificate CA names sent
    ---
    SSL handshake has read 0 bytes and written 0 bytes
    ---
    New, (NONE), Cipher is (NONE)
    Secure Renegotiation IS NOT supported
    Compression: NONE
    Expansion: NONE
    SSL-Session:
        Protocol  : TLSv1.2
        Cipher    : 0000
        Session-ID:
        Session-ID-ctx:
        Master-Key:
        Key-Arg   : None
        Krb5 Principal: None
        PSK identity: None
        PSK identity hint: None
        Start Time: 1487696696
        Timeout   : 7200 (sec)
        Verify return code: 0 (ok)
    ---

Cause

Message-handling issue in TLS 1.2.

Resolution

  1. Install the hotfix from the Microsoft knowledge base article .

  2. Reboot the server.

Have more questions? Submit a request
Please sign in to leave a comment.