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ESA-2011-036: RSA, The Security Division of EMC, announces the release of a Security Fix for RSA(r) Adaptive Authentication (On-Premise)





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ESA-2011-036: RSA, The Security Division of EMC, announces the release of a Security Fix for RSA® Adaptive Authentication (On-Premise)

Advisories
 
Updated December 6, 2011 


Summary:

An issue with RSA® Adaptive Authentication (On-Premise) was discovered which in certain circumstances might affect the Device Recovery capability and Device Identification used by the defined policy.



Description:

CVE Identifiers: CVE-2011-2741, CVE-2011-2742

In certain circumstances the accuracy of the Device Recovery capability and Device Identification used by the defined policy might be affected by the data elements sent from the end user?s device.

This Security Fix provides remediation for items that cause this behavior through product fixes, as well as configuration and policy changes. More information on each of these items is included below.

RSA has identified and addressed the potential security flaws as part of this Security Fix: 

?In certain circumstances, device recovery capabilities and device identification used by the defined policy may be impacted by the data elements sent from the end user?s device. This may potentially allow the system to recover a previously non-registered device or allow access for a registered device despite forensic differences. This potential flaw affects both web and mobile browsers. CVE (Common Vulnerability Enumeration) ID for this issue CVE-2011-2741.
?In certain circumstances, the application may match device tokens sent from mobile apps without proper forensic evaluation used by the defined policy. This may potentially allow access from the mobile device to the protected application without a challenge. This potential flaw only affects mobile apps and does not affect web browsers. CVE (Common Vulnerability Enumeration) ID for this issue CVE-2011-2742.
In addition, the Security Fix provides better capabilities to differentiate between activities originating from web browsers, mobile browsers, and mobile apps. This also allows customers to enable / disable the Device Recovery for each.

Due to forensic similarities between browsers across mobile devices, RSA recommends that customers use these capabilities to disable device recovery specifically for mobile browsers.

Note: Due to the nature of above changes, deployment of this Security Fix may have an impact on existing challenge rates. As with any other Security Fix, RSA recommends that customers fully test the fix before going into production. 



Affected Versions:

The following versions of Adaptive Authentication (On-Premise) might be affected:

6.0.2.1 SP1 Patch 2 and SP1 Patch 3
6.0.2.1 SP2 and SP2 Patch 1
6.0.2.1 SP3 



Recommendation:

We strongly recommend that RSA customers should obtain the following security fixes:

RSA AAOP 6.0.2.1 SP1 Patch 2 customers should obtain 6.0.2.1 SP1 P2 HF460 from SecurCare Online.
RSA AAOP 6.0.2.1 SP1 Patch 3 customers should obtain 6.0.2.1 SP1 P3 HF170 from SecurCare Online.
RSA AAOP 6.0.2.1 SP2 customers should obtain 6.0.2.1 SP2 HF390 from SecurCare Online.
RSA AAOP 6.0.2.1 SP2 Patch 1 customers should obtain 6.0.2.1 SP2 P1 HF210 from SecurCare Online.
RSA AAOP 6.0.2.1 SP3 customers should obtain 6.0.2.1 SP3 HF210 from SecurCare Online.

https://knowledge.rsasecurity.com/scolcms/set.aspx?id=9134 



Common Vulnerability Scoring System (CVSS) Base Score:

The Common Vulnerability Scoring System (CVSS) Base Score for the items identified in this advisory are:

CVE-2011-2741: 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVE-2011-2741: 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)

RSA recommends that all customers take into account both the base score and any relevant temporal and environmental scores, which may impact the potential severity associated with a particular security vulnerability.

For more information on CVSS scoring, please see the Knowledge Base Article, ?Security Advisories Severity Rating? at https://knowledge.rsasecurity.com/scolcms/knowledge.aspx?solution=a46604.



Obtaining Downloads:

To obtain the latest RSA product downloads, log on to RSA SecurCare Online at https://knowledge.rsasecurity.com 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 https://knowledge.rsasecurity.com 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 link.



Obtaining More Information:

For more information about RSA Adaptive Authentication, visit the RSA web site at http://www.rsa.com/node.aspx?id=3018.



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 https://knowledge.rsasecurity.com, click Help & Contact, and then click the Contact Us - Phone tab or the Contact Us - Email tab.



General Customer Support Information:

http://www.rsa.com/node.aspx?id=1264



RSA SecurCare Online:

https://knowledge.rsasecurity.com



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. 
http://www.rsa.com/node.aspx?id=2575 



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 https://knowledge.rsasecurity.com/scolcms/help.aspx?_v=view3. 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.


EMC Product Security Response Center
Security_Alert@xxxxxxx
http://www.emc.com/contact-us/contact/product-security-response-center.htm


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