Security Bulletin: Vulnerability in Hibernate Validator affects WebSphere Application Server Liberty (CVE-2020-10693)

Summary

There is a vulnerability in the Hibernate Validator library used by WebSphere Application Server Liberty. This has been addressed.

Vulnerability Details

CVEID:CVE-2020-10693
**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

Remediation/Fixes

The recommended solution is to apply the interim fix or Fix Pack containing APAR PH29942 for each named product as soon as practical.

For WebSphere Application Server Liberty 17.0.0.3 - 20.0.0.10 using the beanValidation-2.0 feature:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH29942
--OR–
· Apply Liberty Fix Pack 20.0.0.11 or later (targeted availability 4Q2020).

Additional interim fixes may be available and linked off the interim fix download page.

Workarounds and Mitigations

None