Security Bulletin
Summary
There is an information disclosure due to an XML external entity (XXE) vulnerability when using the OpenSAML features in WebSphere Application Server Liberty.
Vulnerability Details
CVEID: CVE-2013-6440
DESCRIPTION: OpenSAML could allow a remote authenticated attacker to obtain sensitive information, caused by an error when parsing XML entities. By persuading a victim to open a specially-crafted XML document containing external entity references, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/89714 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM WebSphere Application Server:
- Liberty using samlWeb-2.0 feature
- Liberty using wsSecuritySaml-1.1 feature
Remediation/Fixes
The recommended solution is to apply the interim fix or Fix Pack contain APAR PI89102 for each named product as soon as practical.
For WebSphere Application Server Liberty using the OpenSAML features:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI89103
--OR--
· Apply Liberty Fix Pack 17.0.0.4 or later.
Get Notified about Future Security Bulletins
References
Change History
14 November 2017: 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
swg22010415