There is a vulnerability in the Hibernate Validator library used by WebSphere Application Server Liberty. This has been addressed.
DESCRIPTION: Hibernate Hibernate Validator could allow a remote attacker to bypass security restrictions, caused by a flaw in the message interpolation processor. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass input sanitation controls when handling user-controlled data in error messages.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182240 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
|WebSphere Application Server Liberty||184.108.40.206 - 220.127.116.11|
For WebSphere Application Server Liberty 18.104.22.168 - 22.214.171.124 using the beanValidation-2.0 feature:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH29942
· Apply Liberty Fix Pack 126.96.36.199 or later (targeted availability 4Q2020).
Additional interim fixes may be available and linked off the interim fix download page.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
14 Oct 2020: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
14 October 2020