Security Bulletin: Security vulnerability in Apache Commons FileUpload used by WebSphere Application Server (CVE-2016-1000031)

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

This vulnerability affects the following versions and releases of IBM WebSphere Application Server:

• Liberty
• Version 9.0
• Version 8.5
• Version 8.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing APARs PI90804 or PI94763 for each named product as soon as practical.

**Note: There was an issue with PI90804 for WebSphere Application Server Liberty. You could encounter a Null Pointer Exception when accessing the getHeader() call during a servlet request. If you have already downloaded the interim fix for PI90804 for Liberty we recommned that you replace it with the new interim fixes for PI94763.

For WebSphere Application Server Liberty:**
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI94763
--OR–
· Apply Liberty Fix Pack 18.0.0.1 or later.**

For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition:** **
For V9.0.0.0 through 9.0.0.6:**
· Upgrade to minimal fix pack levels as required by interim fixes and then apply Interim Fix PI90804
--OR–
· Apply Fix Pack 9.0.0.7 or later. ** **
For V8.5.0.0 through 8.5.5.12:
· Upgrade to minimal fix pack levels as required by interim fixes and then apply Interim Fix PI90804
--OR–
· Apply Fix Pack 8.5.5.13 or later. **

For V8.0.0.0 through 8.0.0.14:**
· Upgrade to a minimal fix pack levels as required by interim fix and then apply Interim Fix PI90804
--OR–
· Apply Fix Pack 8.0.0.15 or later.

Workarounds and Mitigations

none