Rule:

--
Sid:
288

--
Summary:
This event is generated when an attempt is made to exploit a buffer 
overflow in the POP3 service on Linux systems.

--
Impact:
An attacker can gain access to a shell running with root privileges.

--
Detailed Information:
This rule looks for a piece of shell code (executable code) that is
used to exploit a known vulnerability in an older version of the POP3
daemon distributed in Linux systems.

--
Affected Systems:
Various Linux versions.

--
Attack Scenarios:
The attack is done remotely and gives the attacker a command shell
running with root privileges.

--
Ease of Attack:
Simple.  An exploit is readily available.

--
False Positives:
None known.

--
False Negatives:
None known.

--
Corrective Action:
Install the available security patches from your linux vendor.

--
Contributors:
Original Rule Writer Unknown
Sourcefire Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>
Snort documentation contributed by Steven Alexander<alexander.s@mccd.edu>

--
Additional References:

--
