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SMTP Unencrypted Cleartext Login

Information

Severity

Severity

Medium

Family

Family

General

CVSSv2 Base

CVSSv2 Base

4.8

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:P/A:N

Solution Type

Solution Type

Mitigation

Created

Created

5 years ago

Modified

Modified

5 years ago

Summary

The remote host is running a SMTP server that allows cleartext logins over unencrypted connections.

Detection Method

Detection Method

Evaluates from previously collected info if a non SMTPS enabled SMTP server is providing the 'PLAIN' or 'LOGIN' authentication methods without sending the 'STARTTLS' command first.

Solution

Solution

Enable SMTPS or enforce the connection via the 'STARTTLS' command. Please see the manual of the SMTP server for more information.