Security Bulletin: HTTP Response Splitting in WebSphere Application Server affects IBM Virtualization Engine TS7700 (CVE-2016-0359)

Summary

There is a potential HTTP response splitting vulnerability in IBM WebSphere Application Server as used by the IBM Virtualization Engine TS7700.

Vulnerability Details

CVEID: CVE-2016-0359**
DESCRIPTION:** IBM WebSphere Application Server is vulnerable to HTTP response splitting attacks. A remote attacker could exploit this vulnerability using specially-crafted URL to cause the server to return a split response, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning, cross-site scripting, and possibly obtain sensitive information.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111929 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

All versions of microcode for the IBM Virtualization Engine TS7700 (3957-V07, 3957-VEB, 3957-VEC) prior to and including the following are affected:

Machine Type

| Model|Version
—|—|—
3957| V07| 8.33.1.13
3957| VEB| 8.33.1.13
3957| VEC| 8.40.0.71
Microcode versions 2.1 and prior for the 3957-V06 and 3957-VEA are not affected.

Remediation/Fixes

Contact IBM Service at 1-800-IBM-SERV to arrange an upgrade to the latest microcode level. Minimum microcode levels are shown below:

Machine Type

| Model|Version
—|—|—
3957| V07| 8.40.1.16 or 8.33.2.9
3957| VEB| 8.40.1.16 or 8.33.2.9
3957| VEC| 8.40.1.16

Alternatively, the fix may be applied to any of the following microcode levels by installing VTD_EXEC.202 v2.07:

• 8.33.1.11
• 8.33.1.13
• 8.40.0.71
  This service may be performed concurrently.

Workarounds and Mitigations

Although IBM recommends that you upgrade to the fixes identified above, you can mitigate, but not eliminate the risk of these vulnerabilities by restricting physical and network access to the TS7700 to authorized users and IBM Service Personnel only.