IBM AS400 and iSeries POP3 Server Remote Information Disclosure

Medium Nessus Plugin ID 18046


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


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 allows a remote attacker to determine 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.


Disable the POP3 service if not needed.

See Also

Plugin Details

Severity: Medium

ID: 18046

File Name: as400_pop3_info_disclosure.nasl

Version: $Revision: 1.21 $

Type: remote

Family: Misc.

Published: 2005/04/14

Modified: 2016/05/04

Dependencies: 17975

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:ND/RL:U/RC:ND

Vulnerability Information

Excluded KB Items: global_settings/supplied_logins_only

Exploit Available: true

Exploit Ease: No exploit is required

Vulnerability Publication Date: 2005/04/15

Reference Information

CVE: CVE-2005-1133

BID: 13156

OSVDB: 15510