Vulnerability Assessment & Network Security Forums

If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> Misc. >> IBM AS400 and iSeries POP3 Server Remote Information Disclosure Vulnerability

Vulnerability Assessment Details

IBM AS400 and iSeries POP3 Server Remote Information Disclosure Vulnerability

Vulnerability Assessment Summary
Checks for remote information disclosure vulnerability in IBM AS400 and iSeries POP3 server

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote POP server is affected by a information disclosure
vulnerability.

Description :

The remote host appears to be running the POP3 service that comes with
all modern AS/400 and iSeries servers. Further, this service is prone
to an information disclosure vulnerability due to the responses it
provides to username / password combinations. This permits a remote
attacker to acertain valid user profiles. Further, the service
offers a means of brute forcing passwords since it does not block a
connection or disable a user after a given number of invalid login
attempts.

See also :

http://www.venera.com/downloads/Enumeration_of_AS400_users_via_pop3.pdf

Solution :

Disable the POP3 service if not needed.

Network Security Threat Level:

Low / CVSS Base Score : 2
(AV:R/AC:L/Au:NR/C:P/A:N/I:N/B:N)

Networks Security ID: 13156

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security

Cables, Connectors