Unreal IRCD < 3.2.1 Cloak IP Address Disclosure

medium Nessus Network Monitor Plugin ID 2153
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


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


The remote host is running a version of Unreal IRCD that is prone to a cloaked IP address disclosure issue. An attacker may use its own IP and the corresponding hash in order to find the server cloak keys. This vulnerability could permit an attacker to gather valid IP addresses in order to carry out attacks on them.


Upgrade to version 3.2.1 or higher.

Plugin Details

Severity: Medium

ID: 2153

Family: IRC Servers

Published: 8/18/2004

Updated: 3/6/2019

Risk Information


Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:unreal:unrealircd:*:*:*:*:*:*:*:*

Reference Information

CVE: CVE-2004-0679

BID: 10663