SMTP Server Non-standard Port Detection

medium Nessus Plugin ID 18391

Synopsis

The remote SMTP service is running on a non-standard port.

Description

This SMTP server is running on a non-standard port. This might be a backdoor set up by attackers to send spam or even control of a targeted machine.

Solution

Check and clean the configuration.

See Also

http://www.icir.org/vern/papers/backdoor/

Plugin Details

Severity: Medium

ID: 18391

File Name: smtp_backdoor.nasl

Version: Revision: 1.16

Type: remote

Family: Backdoors

Published: 5/29/2005

Updated: 12/1/2017

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

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