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Security Bulletin: Multiple vulnerabilities in IBM WebSphere eXtreme Scale Client could expose sensitive information (CVE-2016-2861, CVE-2016-0400)

Security Bulletin


Summary

Multiple vulnerabilities in IBM WebSphere eXtreme Scale Client could expose sensitive information.

Vulnerability Details

CVEID: CVE-2016-2861
DESCRIPTION:
IBM WebSphere eXtreme Scale uses weaker than expected security to encrypt data which could allow an attacker that is able to capture network traffic to decrypt sensitive information. This vulnerability only applies to the WebSphere eXtreme Scale client, and only when WebSphere eXtreme Scale is used as the provider for the WebSphere Dynamic Cache.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112657 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2016-0400
DESCRIPTION:
IBM WebSphere Extreme Scale is vulnerable to HTTP response splitting attacks, caused by improper validation of user-supplied input when processing malicious requests. This vulnerability only applies to the WebSphere eXtreme Scale client, and only when WebSphere eXtreme Scale is used as the HTTP Session Cache provider. A remote attacker could exploit this vulnerability to inject arbitrary HTTP headers containing unicode characters and 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 or cross-site scripting, and possibly obtain sensitive information.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112655 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

WebSphere eXtreme Scale 7.1.0
WebSphere eXtreme Scale 7.1.1

WebSphere eXtreme Scale 8.5

WebSphere eXtreme Scale 8.6

Remediation/Fixes

Please apply one of the fixes below.

<Product VRMF APAR Remediation/First Fix
WebSphere eXtreme Scale 7.1 PI60898 Refer to the Version 7.1 table in the Recommended Fixes page for WebSphere eXtreme Scale.
WebSphere eXtreme Scale 7.1.1

8.5

8.6

PI60897 Refer to the Version 7.1.1, 8.5, or 8.6 table in the Recommended Fixes page for WebSphere eXtreme Scale.

Workarounds and Mitigations

There are no workarounds.  A fix must be applied to correct the problem.

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References

Related information

Change History

27 May 2016: Original version 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document information

More support for: WebSphere eXtreme Scale
General

Software version: 7.1, 7.1.1, 8.5, 8.6

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Reference #: 1983036

Modified date: 15 August 2016