Home page logo

basics logo Security Basics mailing list archives

RE: pop3 over telnet and clear text passwords
From: "David Gillett" <gillettdavid () fhda edu>
Date: Thu, 1 Apr 2004 09:56:06 -0800

  Nothing except the machine in front of you knows that the
application you're using is telnet and not some specialized 
POP3 client app.  The cleartext transmission of the password
is part of the POP3 protocol (part of what allows you to use
Telnet in this way...); it would be sent in cleartext even if
you were not using Telnet.

  If cleartext passwords are a concern (i.e., traffic may be
sniffed), then you need to move from POP3 to some more secure
protocol.  This may mean forcing users to change what email
client they use, and you will also need to change your support

David Gillett

-----Original Message-----
From: Murad Talukdar [mailto:talukdar_m () subway com]
Sent: Wednesday, March 31, 2004 7:47 PM
To: security-basics () lists securityfocus com
Subject: pop3 over telnet and clear text passwords

I often use pop3 over telnet to check on email boxes some 
users have.(ie
that they've been setup properly) How do I mask the fact that the
username/password is transmitted as clear text?(If I can?)
Murad Talukdar

Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off 
any course! All of our class sizes are guaranteed to be 10 students or less 
to facilitate one-on-one interaction with one of our expert instructors. 
Attend a course taught by an expert instructor with years of in-the-field 
pen testing experience in our state of the art hacking lab. Master the skills 
of an Ethical Hacker to better assess the security of your organization. 
Visit us at: 

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]