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This script is Copyright (C) 1999-2016 Tenable Network Security, Inc.
The remote SMTP server is vulnerable to authentication bypass.
The remote SMTP server did not complain when issued the
MAIL FROM: root@this_host
RCPT TO: /tmp/nessus_test
This probably means that it is possible to send mail directly
to files, which is a serious threat, since this allows
anyone to overwrite any file on the remote server.
*** This security hole might be a false positive, since
*** some MTAs will not complain to this test, but instead
*** just drop the message silently.
*** Check for the presence of file 'nessus_test' in /tmp !
This plugin tests for a generic condition.
It may be remedied by upgrading, reconfiguring, or changing your SMTP Server (MTA).
Risk factor :
Critical / CVSS Base Score : 10.0
Family: SMTP problems
Nessus Plugin ID: 10259 ()
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