Rule:

--
Sid:
717

--
Summary:
This event is generated when a failed remote telnet connection occurs using the root account.

--
Impact:
Failed root access.  This event indicates that an attacker tried an failed to connect to a telnet server using the root account.


--
Detailed Information:
Telnet servers can be configured to disallow connections using the root account.  If root privileges are required, the root user must log on to the telnet server's console directly.  A failed telnet connection using the root account will generate an error message. 

--
Affected Systems:
Telnet servers.

--
Attack Scenarios:
An attacker may attempt to log on to a telnet server using the root account.

--
Ease of Attack:
Simple

--
False Positives:
None known.

--
False Negatives:
None known.

--
Corrective Action:

Disable root logins using telnet.

Consider using Secure Shell instead of telnet.

Block inbound telnet access if it is not required.

--
Contributors:
Original rule written by Ron Gula<rgula@tenablesecurity.com>
Documented by Steven Alexander<alexander.s@mccd.edu>
Sourcefire Research Team
Judy Novak <judy.novak@sourcefire.com>

--
Additional References:

--
