Lotus Notes Password Hieroglyphics Information Disclosure

Medium Nessus Network Monitor Plugin ID 1305


The remote host may give an attacker information useful for future attacks.


The remote host is running a Lotus Notes 4.6 or 5.x email client. The login dialogue box used by these version of Notes includes a number of security features, including a set of four hieroglyphic characters. The goal of these characters is to increase the difficulty in spoofing the login dialog. An attacker with knowledge of the expected hieroglyphic sequence for a given login may use this dialogue to perform a brute force attack. This will eliminate a number of incorrect passwords, reducing the search space by approximately a factor of two. A conventional brute force attack against the remaining possibilities will then be required.


Contact vendor for an upgrade/patch.

Plugin Details

Severity: Medium

ID: 1305

File Name: 1305.prm

Family: SMTP Clients

Published: 2004/08/20

Modified: 2016/01/21

Dependencies: 1334

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 4.3

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

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


Base Score: 5.3

Temporal Score: 5.3


Temporal Vector: CVSS3#E:H/RL:U/RC:X

Reference Information

BID: 4324