Liferay Portal 6.1.0 'addUser()' Security Bypass

critical Nessus Plugin ID 59232


The remote web server contains a Java application affected by a security bypass vulnerability.


The version of Liferay Portal hosted on the remote web server contains a flaw in the 'UserServiceUtil' class's 'addUser' method that allows a remote, unauthenticated attacker to create new administrative users. Since administrative users can install new plugins and extensions, this may lead to arbitrary code execution.

In addition, this version of Liferay Portal may be affected by a reconfiguration vulnerability that may allow the backing store to be switched to an arbitrary, attacker-controlled server. However, Nessus has not tested for this.


Update to a version after 6.1.0 or use the newest version in SVN.

See Also

Plugin Details

Severity: Critical

ID: 59232

File Name: liferay_6_1_0_addUser.nasl

Version: 1.8

Type: remote

Family: CGI abuses

Published: 5/22/2012

Updated: 4/11/2022

Configuration: Enable thorough checks

Risk Information

CVSS Score Rationale: No cve available for this vulnerability.


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: manual

Vulnerability Information

CPE: cpe:/a:liferay:portal

Required KB Items: www/liferay_portal

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 4/20/2012

Vulnerability Publication Date: 4/21/2012

Reference Information

BID: 53185, 53186