Security Bulletin
Summary
There is a potential vulnerability in the Apache Commons FileUpload used by WebSphere Application Server traditional and WebSphere Application Server Liberty.
Vulnerability Details
CVEID: CVE-2016-1000031
DESCRIPTION: Apache Commons FileUpload, as used in several products, could allow a remote attacker to execute arbitrary code on the system, caused by deserialization of untrusted data in DiskFileItem class of the FileUpload library. A remote attacker could exploit this vulnerability to execute arbitrary code under the context of the current process.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117957 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
These vulnerabilities affect all versions of Liberty for Java in IBM Bluemix up to and including v3.17.1.
Remediation/Fixes
To upgrade to Liberty for Java v3.18-20180213-1234 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(TM) (WAR, liberty-xxx, buildpack-v3.xxx, ibmjdk-1.8.0_xxx, 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
Monitor IBM Cloud Status for Future Security Bulletins
Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.
References
Change History
20 February 2018: Original document published
*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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
15 June 2018
UID
swg22013713