Apache Common Library InvokerTransformer Vulnerability (CVE-2015-4852 & CVE-2015-6420) in RSA Access Manager 6.x - False Positive
Originally Published: 2015-11-30
Last Modified: 2023-10-06
Article Number
000059148
Applies To
RSA Product Set: Access Manager
RSA Version/Condition: 6.0 / 6.1 /  6.2 SP3
CVE Identifier(s)
CVE-2015-4852, CVE-2015-6420
Article Summary
Security Issue with Apache collections jars specifically commons-collections-3.2.1.jar.
Originally reported  as CVE-2015-4852.
A second, similar issue was reported as CVE-2015-6420

CVE-2015-4852 is actually a Weblogic CVE that is centered around Apache common libraries.
CVE-2015-6420 is a CISCO CVE centered around the same Apache common libraries.
These libraries are used in Access Manager from 6.0 up to 6.2 SP3.

The actual issue is a deserialization vulnerability involving Apache Commons collections, which is already being addressed by that group.
Link to Advisories
http://svn.apache.org/viewvc?view=revision&revision=1713307
Alert Impact
Not Exploitable
Alert Impact Explanation
RSA has investigated the issue and have deemed that the flaw exists but is not exploitable.

This is because of the following:
  • Access Manager does not accept the input from the user to de-serialize the data.
  • AxM runtime interfaces are not serializing any of the custom Java objects.
  • Most of the references are associated with the Admin API, the methods for which are executed over the authentication.
Resolution
No changes are required. It is also suggested to run AxM components in SSL auth mode. 
Disclaimer
Read and use the information in this RSA Security Advisory to assist in avoiding any situation that might arise from the problems described herein. If you have any questions regarding this product alert, contact RSA Software Technical Support at 1- 800 995 5095. RSA Security LLC and its affiliates, including without limitation, its ultimate parent company, EMC Corporation, distributes RSA Security Advisories in order to bring to the attention of users of the affected RSA products, important security information. RSA recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided 'as is' without warranty of any kind. RSA disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event, shall RSA, its affiliates or suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if RSA, its affiliates or suppliers have been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.

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