Security Bulletin
Summary
There is a vulnerability in IBM WebSphere Application Server that could allow an HTTP response splitting attack in Channel.
Vulnerability Details
CVEID: CVE-2015-2017
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: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/103991 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM WebSphere Application Server
- Version 8.5.5 Full Profile and Liberty Profile
- Version 8.5 Full Profile and Liberty Profile
- Version 8.0
- Version 7.0
- Version 6.1
Remediation/Fixes
The recommended solutions is to apply the interim fix, Fix Pack or PTF containing APAR PI45266 for each named product as soon as practical.
For WebSphere Application Server:
For V8.5.0.0 through 8.5.5.7 Full Profile:
· Upgrade to a minimal fix pack level as required by interim fix and then apply Interim Fix PI45266
(Note: If you downloaded the interim fix for WebSphere Application Server Full Profile 8.5.5.7 on or before November 17, 2015, please uninstall it and install the new 8.5.5.7 interim fix for PI45266. The previous interim fix also contained the fix for another APAR and it was enabled by default).
--OR--
· Apply Fix Pack 8.5.5.8 or later (targeted availability 11 December 2015).
For V8.5.0.0 through 8.5.5.7 Liberty Profile:
· Upgrade to a minimal fix pack level as required by interim fix and then apply Interim Fix PI45266
--OR--
· Apply Fix Pack 8.5.5.8 or later (targeted availability 11 December 2015).
For V8.0 through 8.0.0.11:
· Upgrade to a minimal fix pack level as required by interim fix and then apply Interim Fix PI45266
--OR--
· Apply Fix Pack 8.0.0.12 or later (targeted availability 02 February 2016).
For V7.0.0.0 through 7.0.0.37:
· Upgrade to a minimal fix pack level as required by interim fix and then apply Interim Fix PI45266
--OR--
· Apply Fix Pack 7.0.0.39 or later (targeted availability 02 November 2015).
For V6.1.0.0 through 6.1.0.47:
· Upgrade to Fix Pack 6.1.0.47 and then apply Interim Fix PI45266
For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.
Workarounds and Mitigations
none
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Important Note
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References
Change History
29 October 2015: original document published
30 October 2015: clarified product infomation
2 November 2015: Fixed minor grammatical error
19 November 2015: updated with new interim fix
*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
swg21966837