Security Bulletin: Swagger vulnerability affects WebSphere Application Server Liberty (CVE-2019-17495)

Summary

There is a Swagger vulnerability that affects WebSphere Application Server Liberty. This affects the mpOpen-1.x and openAPI-3.x features. This vulnerability has been addressed.

Vulnerability Details

CVEID:CVE-2019-17495
**DESCRIPTION:**Swagger UI could allow a remote attacker to obtain sensitive information, caused by a CSS injection flaw. By using the relative path overwrite (RPO) attack technique, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169050 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

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

For WebSphere Application Server Libertyusing mpOpenAPI-1.0, mpOpenAPI-1.1, openAPI-3.0 or openAPI-3.1 features:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH20161
--OR–
· Apply Fix Pack 20.0.0.1 or later (targeted availability 1Q2020).

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

Workarounds and Mitigations

None