Security Bulletin: Cross-site request forgery in Liberty for Java for IBM Bluemix (CVE-2017-1194)

Summary

There is a potential cross-site request forgery in WebSphere Application Server OAuth service provider.

Vulnerability Details

CVEID: CVE-2017-1194**
DESCRIPTION:** IBM WebSphere Application Server is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123669 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

Affected Products and Versions

This vulnerability affects all versions of Liberty for Java in IBM Bluemix up to and including v3.8.

Remediation/Fixes

To upgrade to Liberty for Java v3.9-20170419-1403 or higher, you must re-stage or re-push your application.

To find the current version of Liberty for Java in IBM Bluemix being used, from the command-line Cloud Foundry client by running the following commands:

cf ssh <appname> -c cat “staging_info.yml”

Look for the following lines:

{“detected_buildpack”:“Liberty for Java™ (WAR, liberty-xxx, buildpack-v3.xxx, ibmjdk-1.8.0_20161213, env)”,“start_command”:“.liberty/initial_startup.rb”}

To re-stage your application using the command-line Cloud Foundry client, use the following command:

cf restage <appname>

To re-push your application using the command-line Cloud Foundry client, use the following command:

cf push <appname>

Workarounds and Mitigations

None.