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ESB-2015.3224 - [Win][UNIX/Linux] RSA SecurID Web Agent: Unauthorised access - Existing account

Date: 23 December 2015

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             AUSCERT External Security Bulletin Redistribution

         RSA SecurID Web Agent Authentication Bypass Vulnerability
                             23 December 2015


        AusCERT Security Bulletin Summary

Product:          RSA SecurID Web Agent
Publisher:        EMC
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access:    Unauthorised Access -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2015-6851  

- --------------------------BEGIN INCLUDED TEXT--------------------

ESA-2015-177: RSA SecurID Web Agent Authentication Bypass Vulnerability

EMC Identifier: ESA-2015-177

CVE Identifier: CVE-2015-6851

Severity Rating: 6.6 (AV:L/AC:L/Au:N/C:C/I:C/A:N)

Affected Products:

RSA SecurID Web Agent versions prior to 8.0.


RSA SecurID Web Agent contains a patch that is designed to fix a 
Authentication bypass vulnerability that may potentially be exploited by 
malicious users to compromise the confidentiality and integrity of the 
affected system.


RSA SecurID Web Agent could be affected by Authentication bypass 
vulnerability. In versions prior to 8.0, when the browser window was idle for
more than a configured amount of time, the session was not terminated instead
a privacy screen (pop-up for re-authentication) was rendered. A malicious 
user, with local or physical access to the end user system, would be able to 
dismiss the privacy screen using DOM Inspector tool and continue using Web 
Agent without re-authentication.


The following RSA SecurID Web Agent release contains resolution to this 

RSA SecurID Web Agent version 8.0

RSA recommends all customers upgrade at the earliest opportunity.

Obtaining Downloads:

To obtain the latest RSA product downloads, log on to RSA SecurCare Online at and click Products in the top navigation 
menu. Select the specific product whose download you want to obtain. Scroll to
the section for the product download that you want and click on the link.

Obtaining Documentation:

To obtain RSA documentation, log on to RSA SecurCare Online at and click Products in the top navigation 
menu. Select the specific product whose documentation you want to obtain. 
Scroll to the section for the product version that you want and click the set

Severity Rating:

For an explanation of Severity Ratings, refer to the Knowledge Base Article, 
Security Advisories Severity Rating at RSA
recommends all customers take into account both the base score and any 
relevant temporal and environmental scores which may impact the potential 
severity associated with particular security vulnerability.

Obtaining More Information:

For more information about RSA products, visit the RSA web site at

Getting Support and Service:

For customers with current maintenance contracts, contact your local RSA 
Customer Support center with any additional questions regarding this RSA 
SecurCare Note. For contact telephone numbers or e-mail addresses, log on to 
RSA SecurCare Online at, click Help & 
Contact, and then click the Contact Us - Phone tab or the Contact Us - Email 

General Customer Support Information:

RSA SecurCare Online:

EOPS Policy:

RSA has a defined End of Primary Support policy associated with all major 
versions. Please refer to the link below for additional details.

SecurCare Online Security Advisories

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, 
distribute 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 its 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 its 
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 

About RSA SecurCare Notes & Security Advisories Subscription

RSA SecurCare Notes & Security Advisories are targeted e-mail messages that 
RSA sends you based on the RSA product family you currently use. If you'd like
to stop receiving RSA SecurCare Notes & Security Advisories, or if you'd like
to change which RSA product family Notes & Security Advisories you currently 
receive, log on to RSA SecurCare Online at Following the 
instructions on the page, remove the check mark next to the RSA product family
whose Notes & Security Advisories you no longer want to receive. Click the 
Submit button to save your selection.

Sincerely, RSA Customer Support

- --------------------------END INCLUDED TEXT--------------------

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Previous advisories and external security bulletins can be retrieved from:

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The University of Queensland
Qld 4072

Internet Email:
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